Abstract

Disclosed are a PBET copolyester, a preparation method therefor, and a use thereof, belonging to the technical field of polymer materials. The PBET copolyester of the present application has a specific diol unit composition, carboxyl end-group content, and half-peak width and peak value of a cold crystallization peak in a second cooling curve, and thus has better mechanical properties and aging resistance, and is suitable for preparing electronic and electrical components.

IPC Classes  ?

• C08G 63/183 - Terephthalic acids
• C08G 63/78 - Preparation processes
• C08J 11/00 - Recovery or working-up of waste materials
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Goods & Services

Unprocessed plastics; Unprocessed synthetic resins; Unprocessed artificial resins; Polymer resins, unprocessed; Unprocessed epoxy resins; Polyurethane; Silicones; Unprocessed synthetic resins for use in the manufacture of plastic molding compounds; Unprocessed polypropylene resins; Polymerization plastics. Rubber, raw or semi-worked; Waterproof packings; Filtering materials of semi-processed films of plastic; adhesive-coated plastic sheets for use in manufacture; Polymer films for use in manufacture; Flexible plastic films, other than for packaging; insulating materials; soundproofing materials; insulating refractory materials; Plastic substances, semi-processed.

Abstract

Provided is a halogen-free ablation-resistant polypropylene resin composition, comprising the following components in parts by weight: 18-50 parts of a polypropylene resin, 3-10 parts of a piperazine flame retardant, 20-26 parts of a nitrogen-phosphorus composite flame retardant, 0.2-1.8 parts of a flame retardant synergist, and 12-28 parts of a long glass fiber, wherein the mass percentage of silicon dioxide in the long glass fiber is greater than 60%. The halogen-free ablation-resistant polypropylene resin composition has excellent burn-through resistance and heat-insulation properties, and has good flame-retardant properties.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 23/14 - Copolymers of propene
• C08K 5/3432 - Six-membered rings
• C08K 5/3492 - Triazines
• C08K 7/10 - Silicon-containing compounds
• C08K 3/38 - Boron-containing compounds
• C08K 7/14 - Glass

Abstract

Disclosed in the present invention are a preparation method for a graft copolymer and a use thereof. The preparation method comprises the following steps: in the presence of a graft matrix, performing emulsion polymerization and grafting on a styrene monomer and a vinyl cyanide monomer to obtain a graft copolymer, wherein the grafting process is divided into a monomer addition reaction stage and an aging stage, and a first initiator and a second initiator are added at the monomer addition reaction stage; at least one reducing agent is added in the grafting process to form a redox initiation system with the initiators; and a third initiator is supplemented at the aging stage, the third initiator being a peroxide containing a tert-butyl group. The preparation method of the present invention can achieve a high conversion rate, and an ABS resin prepared from the graft copolymer has relatively good impact performance and relatively low content of residual monomers.

IPC Classes  ?

• C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
• C08F 4/40 - Redox systems
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08F 212/08 - Styrene
• C08F 220/44 - Acrylonitrile
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers

Goods & Services

Biochemical catalysts; Polymer resins, unprocessed; Synthetic resins, unprocessed; Artificial resins, unprocessed; Polymerization plastics; Unprocessed plastics for industrial use; Unprocessed artificial resins as raw materials in the form of powders, liquids or pastes; Plasticizers; Adhesive stiffeners for plastics; Curing agent for synthetic resin. Rubber, raw or semi-worked; Sealant compounds for joints; Polymer films for use in manufacture; Semi-processed plastics, resins, polymers or synthetic fibres (other than for textile use), or substitutes for these; Filtering materials of semi-processed films of plastic; Semi-processed synthetic resins; Artificial resins, semi-processed; Insulating refractory materials, not for buildings; Insulating materials; Stuffing of rubber or plastic.

Abstract

Disclosed in the present invention are a low-mold-fouling flame-retardant polyamide composite material, a preparation method therefor and a use thereof. The polyamide composite material comprises the following components in parts by weight: 40-60 parts of a polyamide resin; 13-30 parts of aluminum diethylphosphinate; 4-10 parts of a synergistic flame retardant; 15-40 parts of glass fibers; 0.1-5 parts of an ethylene-maleic anhydride copolymer; and 0.1-2 parts of a thermal stabilizing additive. The thermal stabilizing additive is a phosphite ester. The polyamide composite material of the present invention solves the problem of heavy mold fouling of flame-retardant polyamides, has high notched impact strength, and can meet the requirements of industries such as automobiles, electronics, energy storage, and connectors.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 23/08 - Copolymers of ethene
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 7/14 - Glass
• C08K 5/3492 - Triazines
• C08K 3/22 - OxidesHydroxides of metals

Abstract

12344 are each independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbyloxy, or halohydrocarbyloxy. The naphthoic acid compound is at least one of naphthoic acid or hydroxynaphthoic acid. Compared with a polyphenylene ether resin, in a melt, the polyphenylene ether resin composition can not only improve the gas barrier property of the polyphenylene ether composite, but also improve the processing stability of the polyphenylene ether composite during high-temperature injection molding.

IPC Classes  ?

• C08G 65/48 - Polymers modified by chemical after-treatment
• C08L 71/12 - Polyphenylene oxides
• C08L 25/06 - Polystyrene

Abstract

The present invention relates to a PMMA composite material, a preparation method therefor and a use thereof. The PMMA composite material comprises the following components in parts by weight: 100 parts of PMMA resin, 5-11 parts of acrylate rubber, and 2-5 parts of ethylene bis stearamide. The PMMA composite material has high hardness, good scratch resistance and good stress cracking resistance, and can effectively prevent the problem of splay marks during injection molding into complex structural parts.

IPC Classes  ?

• C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08K 5/20 - Carboxylic acid amides

Abstract

The present invention relates to a liquid crystal polymer composite material, and a preparation method therefor and the use thereof. The liquid crystal polymer composite material comprises the following components: a liquid crystal polymer resin, calcium carbonate, and glass fibers. The liquid crystal polymer composite material of the present invention effectively avoids the problems of glass fibers puncturing a coating and the coating bubbling at high temperatures on the basis of taking the bonding force of the coating into consideration.

IPC Classes  ?

• C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
• C08K 3/10 - Metal compounds
• C08K 3/18 - Oxygen-containing compounds, e.g. metal carbonyls
• C08K 7/14 - Glass

Abstract

The present application provides an aliphatic-aromatic copolyester, a preparation method therefor, and an application thereof. The aliphatic-aromatic copolyester comprises the following components: a component A, comprising the following acid components: a1) 63-69 mol% of terephthalic acid, or a derivative thereof, or a mixture thereof, based on the total moles of a1) and a2); a2) 31-37 mol% of adipic acid, or a derivative thereof, or a mixture thereof, based on the total moles of a1) and a2); and component B: 1,4-butanediol, in an amount at least equimolar to component A. The aliphatic-aromatic copolyester has a crystallization enthalpy of -20 to -46 J/g. The aliphatic-aromatic copolyester of the present application is used for preparing packaging film, which has a high heat-sealing strength even after prolonged storage, and the impact on the degradation performance of the packaging film is minor.

IPC Classes  ?

• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 3/34 - Silicon-containing compounds
• C08K 3/26 - CarbonatesBicarbonates
• C08J 5/18 - Manufacture of films or sheets
• B65D 65/46 - Applications of disintegrable, dissolvable or edible materials

Abstract

Disclosed in the present invention are a PBT composition, a preparation method therefor, and a use thereof. The PBT composition comprises the following components in parts by weight: 45-55 parts of a PBT resin, 1.5-6 parts of an SAN resin, 1.5-4 parts of a toughening agent, 8-12 parts of a brominated flame retardant, 1.5-3 parts of a flame-retardant synergist, and 0.25-2 parts of a silicone lubricant. By means of the synergistic effect of the SAN resin and the silicone lubricant, the rate of carbon formation when an electrolyte drips onto the material surface can be greatly reduced, so that the prepared PBT composition has relatively high CTI and relatively good mechanical properties and flame retardant properties.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08L 83/04 - Polysiloxanes
• C08L 23/08 - Copolymers of ethene
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 25/06 - Polystyrene
• C08K 5/03 - Halogenated hydrocarbons aromatic
• C08K 3/22 - OxidesHydroxides of metals

Abstract

The present disclosure provides a PBT resin, comprising an end group containing an acylurea group, where a content of the end group containing the acylurea group in the PBT resin is in a range of 0.5-10 mol/t, and a content of a carboxyl end group in the PBT resin is less than or equal to 20 mol/t. The PBT resin of the present disclosure is capped with a capping agent containing an aromatic carbodiimide functional group, and contains the carboxyl end group with a content of less than or equal to 20 mol/t, thereby obtaining PBT with a certain proportion of β-form crystal and excellent mechanical properties.

IPC Classes  ?

• C08G 63/91 - Polymers modified by chemical after-treatment
• H01R 13/46 - BasesCases

Abstract

The present invention belongs to the technical field of high polymer materials, and discloses a polycarbonate composition and the use thereof. By means of the cooperation between a voltage stabilizer and a compatibilizer of specific types, the product can achieve a very high PTI (withstanding more than or equal to 50 drops at 300 V) and very good flame retardancy (V-0), also has an ideal HAI and an ideal HWI, and is very suitable for small-sized thin-walled electric devices.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 83/10 - Block- or graft-copolymers containing polysiloxane sequences
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08K 3/24 - AcidsSalts thereof
• C08K 9/04 - Ingredients treated with organic substances
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

Abstract

Disclosed are a deflection device, a flash spinning apparatus, and a spinning method therefor. The deflection device comprises a flow guide plate (10) and a deflection plate (20); the flow guide plate (10) is arranged on one side of a nozzle (41) of a flash spinneret; the deflection plate (20) is located on the side of the flow guide plate (10) away from the flash spinneret (40); the side surface of the deflection plate (20) facing the flow guide plate (10) is provided with an arc-shaped deflection surface (21), and the deflection surface (21) curves towards the flow guide plate (10); a flow guide surface (11) is formed on the top surface of the flow guide plate (10); the flow guide surface (11) comprises N curved surfaces which are sequentially connected; and the curvature radii of the N curved surfaces gradually decrease in a direction approaching the deflection plate (20); the curvature radius of the curved surface closest to the deflection plate (20) is the same as the curvature radius of the deflection surface (21). According to the deflection device, fiber bundles falling onto the flow guide surface can be gradually dispersed on the basis of the different curvature configurations of the curved surfaces, thereby effectively preventing the problem of subsequent uneven web formation caused by accumulation of fiber bundles at the point where the fiber bundles come into contact with the flow guide surface.

IPC Classes  ?

• D01D 5/11 - Flash-spinning
• D04H 1/724 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being randomly arranged forming webs during fibre formation, e.g. flash-spinning

Abstract

An aliphatic-aromatic polyester composition, a polyester fiber, a preparation method therefor and use thereof are provided. The aliphatic-aromatic polyester composition includes the following components: i) an aliphatic-aromatic polyester based on aliphatic and aromatic dicarboxylic acids and an aliphatic dihydroxy compound; and ii) a titanium element, wherein calculated based on a weight of the aliphatic-aromatic polyester composition, a content of the titanium element is 55-88 ppm, and an acid number of the aliphatic-aromatic polyester composition is ≤0.84 mg KOH/g according to the standard DIN EN 12634-1998.

IPC Classes  ?

• C08G 63/127 - Acids containing aromatic rings
• C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
• C08G 63/88 - Post-polymerisation treatment
• D01F 8/02 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from cellulose, cellulose derivatives, or proteins
• D01F 8/14 - Conjugated, i.e. bi- or multicomponent, man-made filaments or the likeManufacture thereof from synthetic polymers with at least one polyester as constituent

Abstract

Disclosed are a thermoplastic composite and a preparation method therefor, belonging to the technical field of polymer materials. By means of defining specific parameters of thermoplastic polyurethane and a hindered phenol antioxidant in the thermoplastic composite component, said two components in the thermoplastic composite can achieve high mutual melting. In this way, the thermoplastic composite not only can achieve long-term stability, but can also achieve the excellent effect of a performance retention rate greater than or equal to 80%, even in a severe thermo-oxidative aging test at a temperature of up to 120°C and a duration of up to 1000 h.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08K 5/13 - PhenolsPhenolates

Abstract

A biodegradable polyester composition, a preparation method therefor and use thereof are provided. The biodegradable polyester composition of the present invention includes a biodegradable polyester and a titanium element. Polymerizable monomers of the biodegradable polyester include: an aromatic dicarboxylic acid or an esterified product thereof, or a mixture thereof; an aliphatic dicarboxylic acid or an esterified product thereof, or a mixture thereof; a dihydroxy compound; and a chain extender. A content of the titanium element in the biodegradable polyester composition is 55-86 ppm; and an acid number of the biodegradable polyester composition is 1.10-1.96 mg KOH/g.

IPC Classes  ?

• C08G 63/183 - Terephthalic acids
• B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Disclosed in the present invention are a graft copolymer composition, an ABS resin, a preparation method therefor, and a use thereof. For the graft copolymer, by introducing maleic anhydride and alkyl acrylate monomers into graft group A1, the reaction conversion rate can be increased during polymerization, thereby greatly reducing the content of residual butadiene, and an alkynol surfactant can react on the graft copolymer, so that the residual amount of an auxiliary agent can be reduced, thereby avoiding the problems of precipitation and degradation during subsequent processing; in addition, by adding maleic anhydride and alkyl acrylate monomers to graft shell A2 and cooperating with an alkynol surfactant, unreacted monomers can be grafted into the graft copolymer, thereby reducing residual monomers. The ABS resin prepared from the graft copolymer and a styrene-acrylonitrile copolymer has excellent processing stability, low emissions, and relatively high glossiness and surface energy, enriches the types of ABS resins, and can adapt to application scenarios in the fields such as automobiles, household appliances, OA, electric tools.

IPC Classes  ?

• C08F 279/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group on to polymers of conjugated dienes
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08F 222/08 - Maleic anhydride with vinyl aromatic monomers
• C08F 220/14 - Methyl esters
• C08F 238/00 - Copolymers of compounds having one or more carbon-to-carbon triple bonds
• C08F 212/08 - Styrene
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers

Abstract

Disclosed in the present invention is a low-acidity halogen-free flame retardant, comprising the following components in parts by weight: 89-96 parts of dialkyl aluminum hypophosphite and 5-10 parts of a hindered amine light stabilizer. The pH value of the low-acidity halogen-free flame retardant is 6.5-7. In the present invention, the acidity of the halogen-free flame retardant is reduced and a specific content of hindered amine light stabilizer is contained, so that when the halogen-free flame retardant is applied to a polyamide composition, the corrosion of the flame retardant to a resin matrix can be ameliorated, and additionally, the flame retardancy and the oxygen isolation are improved, and the corrosion to rubber is reduced.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 5/3492 - Triazines
• C08K 5/3435 - Piperidines
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
• C08K 13/02 - Organic and inorganic ingredients

Abstract

Disclosed are a liquid crystal fiber reinforced polyester resin composition, a preparation method therefor and a use thereof. The liquid crystal fiber reinforced polyester resin composition comprises the following components in parts by weight: 100 parts of PCT resin; 5-50 parts of white pigment; 5-30 parts of liquid crystal fiber; and 0.5-5 parts of an auxiliary agent. The fineness of the liquid crystal fiber is 900-3200 D. In the present invention, liquid crystal fibers having a specific fineness are added to a PCT resin matrix material, so that a prepared composition has relatively good strength and reflectivity, and the strength and the reflectivity remain high after SMT processing.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
• C08K 3/22 - OxidesHydroxides of metals
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture

Abstract

Disclosed in the present invention are a lightweight polyamide composition, a preparation method therefor, and the use thereof. The lightweight polyamide composition comprises the following components in parts by weight: 50-75 parts of polyamide resin, 15-25 parts of hollow glass microbeads, 10-20 parts of a toughening agent, 0.5-2 parts of a coupling agent, 0.1-1 part of a polymer having ultrahigh molecular weight and 0-1 part of an auxiliary agent, the coupling agent being a carboxyl-containing polymer, the toughening agent being a polyolefin containing a polar group, and the number-average molecular weight of the polymer having ultrahigh molecular weight being not less than 100W. By means of adding the carboxyl-containing coupling agent, the toughening agent containing the polar group and the polymer having ultrahigh molecular weight to the polyamide resin, the present invention enables the prepared polyamide composition to have better rigidity and toughness and low density.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08L 23/08 - Copolymers of ethene
• C08K 7/28 - Glass

Abstract

A polyamide molding composition is provided, including the following components in parts by weight: a PAXC/YC resin in 40 parts to 75 parts, a white pigment in 30 parts to 60 parts, and a dispersing agent in parts by weight that are 1.5% to 5% of the parts by weight of the white pigment; based on a molar percentage of the PAXC/YC, the PAXC/YC resin includes 60 mol % to 100 mol % of an XC unit and 0 mol % to 40 mol % of a YC unit; the XC unit consists of a 1,4-cyclohexanedicarboxylic acid unit and a diamine unit; the YC unit consists of a 1,4-cyclohexanedicarboxylic acid unit and a diamine unit.

IPC Classes  ?

• C08K 3/22 - OxidesHydroxides of metals
• B29B 9/12 - Making granules characterised by structure or composition
• B29K 505/08 - Transition metals
• C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds

Abstract

Disclosed in the present invention are a polyamide composition, a preparation method therefor and the use thereof. The polyamide composition uses a polyamide resin as a matrix resin; and adding a hollow glass microbead masterbatch, a red phosphorus flame retardant and a reinforcement fiber enables the prepared polyamide composition to have the properties of low density, high toughness, flame retardance and high modulus. The hollow glass microbead masterbatch contains a first toughening agent and a first coupling agent. Applying an aromatic polyamide resin in cooperation with the red phosphorus flame retardant can satisfy relatively high flame retardance in the case of a relatively small dosage of the flame retardant, thereby preventing the problem of a density increase. Therefore, the prepared polyamide composition has good flame retardance and low density, and also has good toughness.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08K 7/28 - Glass
• C08K 9/10 - Encapsulated ingredients
• C08K 3/02 - Elements
• C08K 7/14 - Glass
• C08K 7/06 - Elements

Abstract

Disclosed in the present invention are a flame-retardant PC/ABS composition with a fiber point effect, a preparation method therefor, and a use thereof. The flame-retardant PC/ABS composition with the fiber point effect according to the present invention comprises the following components: a polycarbonate, an ABS resin, a flame retardant, a high-temperature-resistant fiber point, and an anti-dripping agent, wherein the high-temperature-resistant fiber point is a regenerated cellulose fiber having a melting point of greater than or equal to 300ºC. In the flame-retardant PC/ABS composition with the fiber point effect according to the present invention, the high-temperature-resistant fiber point is used instead of a conventional carbon fiber- or glass fiber-reinforced conventional material, so that when the PC/ABS composition is combusted and contracted under heat, the anti-dripping agent can contract and gather at the high-temperature-resistant fiber point serving as a node to greatly slow down the perforation rate, and a carbon layer structure with a star-net-shaped dense distribution can be formed to isolate flame and heat, thus significantly improving flame-retardant properties. Moreover, the impact properties of the PC/ABS composition can also be better maintained, and the surface of the PC/ABS composition has a point-like aesthetic appearance effect similar to that of paint spraying.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08L 1/02 - CelluloseModified cellulose
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/5399 - Phosphorus bound to nitrogen

Abstract

Disclosed in the present invention are a high-dimensional-stability carbon-fiber-reinforced PC material, and a preparation method therefor and the use thereof. The high-dimensional-stability carbon-fiber-reinforced PC material comprises the following components in parts by weight: 50-90 parts of a PC resin, 30-40 parts of carbon fibers, 3-5 parts of a toughening agent and 0.1-0.3 parts of a transesterification inhibitor. The surface of the carbon fibers is provided with a sizing agent, and the sizing agent is a polyurethane or a polyamide; and the mass percentage of the sizing agent in the carbon fibers is 2-5%. In the carbon-fiber-reinforced PC material of the present invention, the content of the carbon fiber sizing agent is reduced, and dimensional stability of the material is improved; in addition, it is ensured that the notch impact strength of the material is high, and the bending resistance is high, such that the carbon-fiber-reinforced PC material can be widely applied to the fields of electronic appliances, automobiles, machinery, musical instruments, etc., which have relatively high requirements for dimensional stability and require workpiece assembling.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08K 3/32 - Phosphorus-containing compounds
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C08J 5/10 - Reinforcing macromolecular compounds with loose or coherent fibrous material characterised by the additives used in the polymer mixture
• C08K 9/04 - Ingredients treated with organic substances
• C08K 7/06 - Elements

Abstract

An SAN/PA6 alloy material, which comprises the following components in parts by weight: 25-58 parts of an SAN resin, 24-50 parts of a PA6 resin, 10-30 parts of a flexibilizer and 2-5 parts of a compatilizer. By introducing the PA6 into the SAN, the solvent resistance of the SAN is improved. The SAN and the PA6 have partial compatibility, and the solvent resistance is not affected when the compatibility of the two is improved by adding the compatilizer and controlling the usage amount of the compatilizer. The solvent expansion resistance of the material is improved by means of a specific content of high-nitrile SAN; the discoloration property of the material is significantly reduced by selecting the specific flexibilizer; and the comprehensive performance is excellent.

IPC Classes  ?

• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 35/06 - Copolymers with vinyl aromatic monomers

Abstract

The present invention relates to a material stress behavior measurement device, comprising a base, a fixing assembly and an adjustment assembly, wherein the fixing assembly comprises an acquisition unit and a fixing member, and a fixing-end gap configured to contain a sample to be measured is formed between an acquisition end of the acquisition unit and the fixing member; the base is provided with at least two adjustment grooves; and the adjustment assembly comprises a first holding member and a second holding member, the first holding member and the second holding member being connected to two adjustment grooves by means of connectors, respectively, and an adjustment-end gap configured to contain said sample being formed between the first holding member and the second holding member. The measurement device can conveniently fix two ends of said sample and maintain said sample at an angle required for measurement. Besides, the acquisition unit can acquire stress data in real time, and since the acquisition unit is solely subjected to stress from said sample, the acquired stress data is accurate. When measurement is performed, the measurement device can be placed in an environmental chamber to change the environmental temperature for measurement, and thus the measurement can be conveniently performed and the measurement accuracy is ensured.

IPC Classes  ?

• G01N 3/08 - Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces

Goods & Services

Dust masks; Protective industrial respiratory masks; Protective breathing masks, not for medical use; Smoke breathing masks with filter against toxic gases and particles; Protective work gloves; Safety goggles; Clothing for protection against radiation; Shoes (Protective -); Protective clothing for the prevention of accident or injury; Acid proof clothing; Eye protectors; Teeth protectors; Protective headgear; Safety helmets; Safety life belts; Knee-pads for workers; Asbestos gloves for protection against accidents; Asbestos clothing for protection against fire; Disposable latex gloves for laboratory use. Medical gloves; Latex medical gloves; Gloves for use during operations; Gloves for use in hospitals; Medical masks; Sanitary masks; Face masks for medical use; Protective clothing for medical purposes; Sterile clothing for surgical use; Clothing especially for operating rooms.

Goods & Services

Dust masks; Protective industrial respiratory masks; Protective breathing masks, not for medical use; Smoke breathing masks with filter against toxic gases and particles; Protective work gloves; Safety goggles; Clothing for protection against radiation; Shoes (Protective -); Protective clothing for the prevention of accident or injury; Acid proof clothing; Eye protectors; Teeth protectors; Protective headgear; Safety helmets; Safety life belts; Knee-pads for workers; Asbestos gloves for protection against accidents; Asbestos clothing for protection against fire; Disposable latex gloves for laboratory use. Medical gloves; Latex medical gloves; Gloves for use during operations; Gloves for use in hospitals; Medical masks; Sanitary masks; Face masks for medical use; Protective clothing for medical purposes; Sterile clothing for surgical use; Clothing especially for operating rooms.

Abstract

The present invention relates to the technical field of liquid crystal polymers (LCPs). Disclosed are an LCP film, a preparation method therefor and a use thereof. The LCP film of the present invention has a surface roughness from 350 nm to 850 nm, and a high-temperature storage modulus G' from 10,000 Pa to 25,000 Pa. By controlling the high-temperature storage modulus and the surface roughness of the LCP film, the LCP film has a certain deformation capability during copper-clad lamination. Meanwhile, a "rivet" effect that occurs when a low-roughness copper foil is laminated with the LCP film is maximized, thereby increasing the adhesion strength between the film and the copper foil. The LCP film has high copper-clad peel force, the peel strength is above 0.7 N/mm, meeting industry standard, and therefore, the LCP film can be applicable to the fields such as flexible printed circuit boards.

IPC Classes  ?

• C08J 7/00 - Chemical treatment or coating of shaped articles made of macromolecular substances
• B29D 7/01 - Films or sheets
• C08J 5/18 - Manufacture of films or sheets
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08G 63/60 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from the reaction of a mixture of hydroxy carboxylic acids, polycarboxylic acids and polyhydroxy compounds

Abstract

Disclosed are a nylon-overmolded TPE composite material, a preparation method therefor and a use thereof. The nylon-overmolded TPE composite material of the present invention comprises: a hydrogenated styrene elastomer, mineral oil, polypropylene, polycaprolactam, a thermoplastic polyamide elastomer, maleic anhydride grafted polypropylene, a maleic anhydride grafted olefin copolymer elastomer, a maleic anhydride grafted hydrogenated styrene elastomer, a filler, and an additive. The nylon-overmolded TPE composite material combines polycaprolactam and a thermoplastic polyamide elastomer, along with other components; the use of the polycaprolactam enhances the strength of the composite material and improves the overmolding performance; moreover, the thermoplastic polyamide elastomer not only increases the elastomer content to improve the appearance of the composite material, but also can improve the overall compatibility of the polycaprolactam with the composite material; thus, a nylon-overmolded TPE composite material having high binding force, excellent mechanical properties and good appearance is obtained.

IPC Classes  ?

• C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
• C08L 23/14 - Copolymers of propene
• C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08L 23/12 - Polypropene
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers

Abstract

A biodegradable aliphatic polyester, and a preparation method therefor and a use thereof. The biodegradable aliphatic polyester contains units derived from at least one aliphatic dicarboxylic acid and at least one aliphatic diol, and satisfies the following conditions: 1.54≤Mw/Mn≤1.98, and Mw/q≥50,000, wherein q is the mass percentage of a low-molecular polymer with the molecular weight of less than or equal to 1,000 Dalton, which is measured by GPC, of the biodegradable aliphatic polyester. By regulating and controlling the molecular weight distribution of the biodegradable aliphatic polyester and the mass percentage of the low-molecular polymer with the molecular weight lower than 1,000 Dalton, the biodegradable aliphatic polyester has good barrier properties and excellent self-adhesiveness.

IPC Classes  ?

• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/685 - Polyesters containing atoms other than carbon, hydrogen, and oxygen containing nitrogen
• C08G 63/78 - Preparation processes
• B65D 65/46 - Applications of disintegrable, dissolvable or edible materials
• A01G 13/02 - Protective coverings for plants; Devices for laying-out coverings

Abstract

Disclosed in the present invention are a polybutylene terephthalate (PBT) composition resistant to refrigerant precipitation, a preparation method therefor, and a use thereof. The PBT composition comprises the following components in parts by weight: 70-85 parts of PBT and 15-25 parts of a core-shell toughening agent, wherein the core-shell toughening agent is a toughening agent with silicone rubber and acrylate rubber as a core and PMMA- or PMMA-grafted GMA as a shell; the average particle size of the core-shell toughening agent is 90-350 nm; and the intrinsic viscosity of the PBT is not higher than 1.2 dL/g; and the content of carboxyl in the PBT is less than or equal to 15 mol/t. The PBT composition provided by the present invention has relatively good refrigerant precipitation resistance and relatively good toughness.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08F 283/12 - Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass on to polysiloxanes

Abstract

The present application discloses a polyphenylene ether resin composition, a preparation method therefor, and a use thereof. The polyphenylene ether resin composition of the present application comprises the following components in parts by weight: 18-51 parts of polyphenylene ether resin and/or maleic anhydride grafted polyphenyl ether resin, 18-42 parts of a crystalline polyamide, 4-11 parts of an amorphous polyamide, 1-13 parts of a phosphorus-containing flame retardant, and 8-42 parts of glass fiber, the melting point of the crystalline polyamide being ≥210°C. By means of adding crystalline polyamide and amorphous polyamide, the present application can improve ablation resistance while ensuring good product appearance performance.

IPC Classes  ?

• C08L 71/12 - Polyphenylene oxides
• H01M 50/16 - Organic material
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 51/08 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• C08K 3/02 - Elements
• C08K 7/14 - Glass

Abstract

Disclosed in the present invention is a low-temperature blasting polypropylene composite material. The low-temperature blasting polypropylene composite material comprises the following components, in parts by weight: 55-80 parts of a polypropylene, 5-20 parts of a filler, 1-5 parts of special fibers, 15-20 parts of a flexibilizer, 0.1-0.5 parts of a mixed compatilizer and 0-1.2 parts of an auxiliary agent, wherein the polypropylene is a binary block co-polypropylene synthesized by ethylene and propylene; the special fibers are ultra-high molecular weight polyethylene fibers having a fiber fineness of 400-800 deniers; and the mixed compatilizer comprises a polyethylene-grafted maleic anhydride and a polypropylene-grafted maleic anhydride. In the present invention, a specific binary block co-polypropylene and the ultra-high molecular weight polyethylene fibers having a specific fiber fineness are used to be matched with the specific mixed compatilizer, such that it is ensured that the polypropylene composite material has excellent tensile strength and bending properties while having excellent low-temperature bursting performance.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 23/06 - Polyethene
• C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• D01D 5/00 - Formation of filaments, threads, or the like
• D01F 6/46 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins

Abstract

Disclosed in the present invention are a low-odor flame-retardant polyamide composite material, and a preparation method therefor and a user thereof. The polyamide composite material comprises the following components in parts by weight: 20-60 parts of a polyamide resin, 13-30 parts of aluminum diethylphosphinate, 4-10 parts of a synergistic flame retardant, 15-40 parts of glass fibers, 1-5 parts of polyethylene glycol, and 0.1-2 parts of a thermal stabilizing aid. The polyamide composite material of the present invention successfully solves the problem of strong odor of flame-retardant polyamide and has high notched impact strength.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 71/02 - Polyalkylene oxides
• C08K 7/14 - Glass
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 5/3492 - Triazines

Abstract

Disclosed are a high-CTI, halogen-free flame-retardant polyamide composite, a preparation method therefor and a use thereof. The polyamide composite, in parts by weight, comprises the following components: 40-70 parts of polyamide resin, 20-40 parts of glass fiber, 8-18 parts of hypophosphite, and 1-6 parts of melamine derivative; the polyamide resin is a composite of PA66 and PA6, the mass ratio of PA66 to PA6 is (1.5-9):1, the elemental iron content of the hypophosphite is ≤70ppm, the pH of the hypophosphite is 4-5, the terminal amino content of the PA66 resin is 50-82 ppm, and the viscosity number of the PA6 resin is 2.0-2.5. The polyamide composite of the present invention successfully increases the CTI value of the material, and the flame-retardant performance meets application requirements, providing more possibilities for the development of new energy voltage platforms from 400V to 800V and higher.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 5/3492 - Triazines

Abstract

344 particles, 0.2-0.5 parts of an antioxidant and 0.2-0.5 parts of a lubricant. The self-repairing polyurethane material of the present invention maintains a relatively high initial tensile strength, also has a self-repairing efficiency reaching up to 99.3%, and greatly reduces the occurrence probability of a crazing problem. A material synthesis method is simple, and the self-repairing polyurethane material can be widely applied in the fields of aerospace, electronic products, industry, transportation, etc.

IPC Classes  ?

• C08L 75/04 - Polyurethanes
• C08K 5/5455 - Silicon-containing compounds containing nitrogen containing at least one group
• C08K 5/3462 - Six-membered rings
• C08K 3/22 - OxidesHydroxides of metals

Abstract

Disclosed in the present invention is a halogen-free flame-retardant ABS composite material, which comprises the following raw material components in parts by weight: 26-50 parts of an ABS resin, 25-35 parts of a PLA resin, 5-12 parts of a compatilizer, 5-12 parts of a toughening agent, 6-15 parts of a phosphorus-containing flame retardant and 2-5 parts of a nitrogen-containing flame retardant. The present invention uses the ABS resin and the PLA resin as resin matrixes for alloy design and development, and uses the compatilizer to achieve compatibility of the alloy system, thereby overcoming a performance defect caused by the difference of polarities of resins; adding the toughening agent can greatly improve the mechanical properties of the alloy material; in addition, the present invention also performs development of halogen-free flame-retardant properties. Therefore, the halogen-free flame-retardant ABS composite material of the present invention has excellent comprehensive properties and halogen-free flame-retardant properties, and the alloy material has good value in industrial application.

IPC Classes  ?

• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 5/3492 - Triazines
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds

Abstract

The present application discloses a polyamide material, and a preparation method therefor and a use thereof. The polyamide material of the present application comprises the following components in parts by weight: 49-97 parts of a polyamide resin, 0-50 parts of a filler, 1-5 parts of ultra-high-molecular-weight polyethylene, 1-5 parts of linear low-density polyethylene grafted maleic anhydride (LLDPE-g-MAH) and 1-3 parts of an auxiliary agent. According to the present application, by adding ultra-high-molecular-weight polyethylene and LLDPE-g-MAH into the polyamide material, the strength of the material is not reduced while reducing the surface friction of the material, such that the polyamide material has the characteristics of low noise and high mechanical properties.

IPC Classes  ?

• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08L 23/06 - Polyethene

Abstract

Disclosed in the present invention is a glass fiber-reinforced flame-retardant polyphenyl ether composition, which comprises the following components in parts by weight: 40-70 parts of a polyphenyl ether; 10-20 parts of HIPS; 0.1-0.6 parts of an epoxy resin; 10-30 parts of glass fibers; 0.2-0.8 parts of a glass fiber surface modifier; and 8-15 parts of a flame retardant. In the present invention, by means of blending a polyphenyl ether having a specific molecular weight distribution with HIPS, the impact resistance is improved, and a high-temperature cooling liquid resistance retention rate exceeding 90% can also be achieved; furthermore, by means of the modified glass fibers and a specific content of the epoxy resin, not only can the impact resistance of the glass fiber-reinforced polyphenyl ether composition be significantly improved, but the "candlewick" effect of the glass fibers during the combustion process can also be improved, such that the glass fiber-reinforced flame-retardant polyphenyl ether composition of the present invention has a flame-retardant level of V-0. Moreover, the glass fiber-reinforced flame-retardant polyphenyl ether composition of the present invention also has the advantages of cooling-liquid resistance and good melt flowability.

IPC Classes  ?

• C08L 71/12 - Polyphenylene oxides
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

Disclosed in the present application are a PBT composite material, and a preparation method therefor and the use thereof. The PBT composite material comprises the following components in parts by mass: 30-60 parts of a PBT resin, 10-30 parts of a flame retardant and 0.2-1.2 parts of a plasticizer. The PBT composite material can significantly reduce the adhesion of the material to a screw rod during the preparation process of a thin-wall product, thereby reducing the occurrence frequency of black spots on the surface of the product, so as to obtain a thin-wall product having low levels of injection molding black spots; in addition, the obtained composite material still has excellent flame retardant property in the preparation of a thin-wall product, and has a good tensile strength and a good impact strength. Moreover, the preparation method provided in the present application is simple and is beneficial to actual production.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 23/08 - Copolymers of ethene
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chainCompositions of derivatives of such polymers
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds

Abstract

A polypropylene composition, comprising the following components in parts by weight: 30-50 parts of a polypropylene resin; 15-24 parts of a piperazine flame retardant; 6-14 parts of an inorganic phosphide; 0.5-1.5 parts of a synergistic flame retardant; 20-35 parts of basalt fibers; 7-15 parts of hollow glass beads; and 2-5 parts of a compatilizer. The polypropylene composition selects a high-heat-resistance piperazine flame retardant system; by adding a combination of the basalt fibers and the hollow glass beads, the thermal insulation effect of the material can be effectively improved, and in the burning process, a good framework supporting effect can be achieved, and it is not prone to deformation and collapse, thereby achieving excellent ablation resistance, reducing the warping deformation of injection molded parts, and achieving a polypropylene composition having both characteristics of low warpage and ablation resistance; and particularly, the use requirements of large battery pack case materials on the material can be met.

IPC Classes  ?

• C08L 23/10 - Homopolymers or copolymers of propene
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08K 7/28 - Glass
• C08K 7/10 - Silicon-containing compounds
• C08K 5/3462 - Six-membered rings
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/3492 - Triazines

Abstract

The present application relates to a starch-based composite material, a preparation method therefor and the use thereof, and a plastic product. Components of the starch-based composite material comprise: a polyester material, starch and a polyhydroxy compound, wherein on the basis of the total mass of the polyester material and the starch, the mass percentage of the polyester material is 15%-85%, and the mass percentage of the starch is 15%-85%; the mass of the polyhydroxy compound is 10%-50% of the mass of the starch; and the average particle size of the starch is less than or equal to 1μm.

IPC Classes  ?

• C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 5/053 - Polyhydroxylic alcohols

Abstract

Disclosed is a black PA/ABS resin composition, comprising the following components in parts by weight: 30-80 parts of PA6 resin, 10-30 parts of ABS resin, 10-30 parts of an inorganic filler, 0.1-1 part of carbon black, and 0.1-1 part of an auxiliary agent. By using the polymer composition provided by the present invention to carry out laser marking on products, images are clear, mark colors are stable, and the mark warpage is low.

IPC Classes  ?

• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08K 3/34 - Silicon-containing compounds
• C08K 3/04 - Carbon

Abstract

Disclosed are a polycarbonate composition and a preparation method thereof. The product introduces a specific proportioning amount of an acrylate copolymer to serve as a component for improving processing fluidity, such that the product has excellent processing fluidity in thin-wall designing, and also has ideal mechanical properties and flame retardance.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08L 33/12 - Homopolymers or copolymers of methyl methacrylate

Abstract

A polycarbonate composition and a use thereof. The product introduces a processing fluidity improver, such that the processing process fluidity of the whole product can be effectively improved, and after processing, especially after thin-wall processing, the product has good toughness, injection molding stability and appearance performance. The processing fluidity improver is a mixture of a polydimethylsiloxane containing a terminal hydroxyl group and a polystyrene containing an epoxy group.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08L 83/04 - Polysiloxanes
• C08L 25/06 - Polystyrene

Abstract

Disclosed in the present invention are a PP composite material as well as a preparation method therefor and the use thereof. The PP composite material comprises the following components in parts by weight: 40-60 parts of a PP resin, 10-20 parts of a POE resin, 10-30 parts of talcum powder, 1-4 parts of carbon nanotubes, 4-10 parts of carbon black, 0.5-1.5 parts of a dispersing agent and 0-4 parts of an auxiliary agent. The obtained material has good resistance stability while having good material fluidity, appearance flatness and impact toughness, and is therefore particularly suitable for forming large-scale exterior parts such as automobile bumpers and parts with high requirements on impact resistance.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 23/14 - Copolymers of propene
• C08L 23/08 - Copolymers of ethene
• C08K 3/34 - Silicon-containing compounds
• C08K 3/04 - Carbon

Abstract

Disclosed in the present invention are a low precipitation and high glow-wire resistant toughened POM composition, and a preparation method therefor and a use thereof. The POM composition comprises the following components in parts by weight: 100 parts of POM resin; 20-30 parts of thermoplastic polyurethane elastomer; and 10-20 parts of synergistic masterbatch. The synergistic masterbatch comprises the following components in percentage by weight: 50%-70% of polyamide and 30%-50% of melamine cyanurate. According to the present invention, the melamine cyanurate is pre-coated with the polyamide to form the synergistic masterbatch, and then the synergistic masterbatch is mixed with the thermoplastic polyurethane elastomer, thereby reducing the degradation of POM during extrusion. In this way, a low precipitation and high glow-wire resistant toughened POM composition is prepared, the glow-wire flammability index thereof can reach 650°C/2.0mm, and the mold deposit is not prone to generating during processing.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• C08L 75/04 - Polyurethanes
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08K 5/3492 - Triazines
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques

Abstract

A polypropylene composition containing plant fibers, and a preparation method therefor and the use thereof. The polypropylene composition containing plant fibers comprises the following components in parts by weight: 60-75 parts of a polypropylene, 10-35 parts of plant fibers, 1-5 parts of a compatilizer, 1-4 parts of a phenolic compound and 0-5 parts of an auxiliary agent. The polypropylene composition containing plant fibers has a high plant fiber filling rate and excellent mechanical properties; in addition, the water absorption rate of a material, which has been subjected to secondary processing, is not sharply increased and is maintained within a relatively stable range, and the polypropylene composition has important practical application value.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 97/02 - Lignocellulosic material, e.g. wood, straw or bagasse

Abstract

Disclosed in the present invention is an HIPS composite material, comprising the following components in parts by weight: 85-90 parts of HIPS, 5.5-9.5 parts of a star-shaped SBS block copolymer and 4-6 parts of mineral oil. By means of adding a specific amount of the star-shaped SBS block copolymer and the specific type of mineral oil to HIPS, the present invention can significantly improve the anti-falling performance of the composite material, and remarkably relieve flow marks generated during injection molding.

IPC Classes  ?

• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes
• C08K 5/01 - Hydrocarbons

Abstract

Disclosed in the present application are a foamed polypropylene composition, a preparation method therefor, and a use thereof. The foamed polypropylene composition comprises the following components in parts by mass: 52-98 parts of PP resin, 0.3-3.2 parts of high specific surface area filler, 0.3-2.2 parts of polyhydroxy compound, and 0.3-2.2 parts of melt elasticity regulator. In the foamed polypropylene composition, PP resin with a certain melt flow rate is selected and compounded with the high specific surface area filler, the polyhydroxy compound, and the melt elasticity regulator in order to increase the expandibility of the composition; the cell size of the composition can be reduced and the product also has high fluidity, facilitating the rapid forming of injection moulding foam.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 5/1535 - Five-membered rings
• C08K 5/053 - Polyhydroxylic alcohols

Abstract

The application relates to a biodegradable composition, and a preparation method and use therefor. The biodegradable composition is prepared from the following raw materials in parts by weight: 40-91 parts of a biodegradable polyester, 2-20 parts of polylactic acid, 7-40 parts of an inorganic filler, and 0.1-0.8 part of a chain extender. The high-frequency 100 Hz composite viscosity of the biodegradable polyester is 50-500 Pa·S. The melt flow rate of the biodegradable polyester under test conditions of 190 C° and 2.16 kg is 2-10 g/10 min. The biodegradable composition of the present application can effectively control the occurrence of perforation air leakage, the heat-sealing strength of a prepared film bag is larger than or equal to 6MPa, and fluorine-containing organic compounds are not used.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 3/26 - CarbonatesBicarbonates
• C08K 3/34 - Silicon-containing compounds

Abstract

Disclosed in the present invention are a polypropylene composition resistant to high-temperature creep, and a preparation method therefor and the use thereof. The polypropylene composition resistant to high-temperature creep comprises the following components in parts by weight: 70-92 parts of a polypropylene resin; 5-20 parts of a branched linear low-density polyethylene resin; and 3-10 parts of an ultrahigh-molecular-weight polypropylene resin, wherein the branched linear low-density polyethylene resin is obtained by subjecting a linear low-density polyethylene resin to an irradiation treatment, and the ratio of M1/M2 of the branched linear low-density polyethylene resin is not less than 10:1, with M2 being 3-45 g/10 min. By adding a small amount of the branched linear low-density polyethylene resin and the ultrahigh-molecular-weight polypropylene resin to a polypropylene resin system, a super-entanglement structure is formed by means of a bridging effect, thereby making the polypropylene composition have good resistance to high-temperature creep; moreover, all the components are compatible with one another, and the polypropylene composition has a good fluidity.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 23/08 - Copolymers of ethene

Abstract

Provided in the present application are an aliphatic-aromatic polyester, and a preparation method therefor and the use thereof. The aliphatic-aromatic polyester has a high whiteness index and a low acid value, and is degradable; and when the aliphatic-aromatic polyester is used for preparing a degradable material, the ageing resistance of the material can be improved, the variation of color values before and after aging is low, and the material still has a relatively high impact strength after aging, thereby avoiding the loss of mechanical properties.

IPC Classes  ?

• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/183 - Terephthalic acids
• C08G 63/78 - Preparation processes
• C08G 63/91 - Polymers modified by chemical after-treatment
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• A47G 21/18 - Drinking straws or the like

Abstract

The present invention relates to a polypropylene composition, and a preparation method therefor and the use thereof. The polypropylene composition comprises the following components: a polypropylene resin, a composite filler, a compatibilizer, a lubricant and other auxiliaries. The polypropylene composition has a low density, a high notch impact strength and low molding shrinkage, and the surface of a large automobile part prepared therefrom by means of injection molding is free of pocking marks, and is smooth and glossy.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08K 7/24 - Expanded, porous or hollow particles inorganic
• C08K 7/28 - Glass
• C08K 9/06 - Ingredients treated with organic substances with silicon-containing compounds
• B60R 19/03 - Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by material, e.g. composite

Abstract

Disclosed in the present invention are a PCR-PET composition, and a preparation method therefor and a use thereof. The PCR-PET composition comprises the following components in parts by weight: 65-85 parts of a PCR-PET resin; 15-30 parts of POE-g-MAH; and 0.5-2 parts of an epoxy resin. According to the present invention, by selecting a PCR-PET resin having a specific PVC content, and adding certain amounts of POE-g-MAH and an epoxy resin, a high-toughness PCR-PET composition having the impact strength greater than 20 kJ/m2, the elongation at break greater than 22%, and good processing stability is prepared; the present invention can meet use requirements of products having high toughness requirements, and implements recycling of PCR-PET.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

The application discloses an expanded polypropylene composite material, and a preparation method and use therefor. The expanded polypropylene composite material is prepared from the following raw materials in parts by mass: 53-80 parts of PP resin, 8-22 parts of polyolefin elastomer, 8-22 parts of talcum powder, 0.4-2.6 parts of a nano filler and 0.2-0.8 part of a foaming agent. The expanded polypropylene composite material has excellent appearance, high bending modulus and good foaming performance. Moreover, the preparation method is simple and convenient to implement, has a cost advantage, is high in design freedom, and is suitable for actual production and application.

IPC Classes  ?

• C08L 23/14 - Copolymers of propene
• C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
• C08L 23/08 - Copolymers of ethene
• C08K 3/26 - CarbonatesBicarbonates
• C08K 3/34 - Silicon-containing compounds
• C08K 3/36 - Silica
• C08K 3/22 - OxidesHydroxides of metals

Abstract

The application relates to a biodegradable composition, and a preparation method and use therefor. The biodegradable composition comprises the following components in parts by weight: 40-91 parts of a biodegradable polyester, 5-20 parts of polylactic acid, 1-10 parts of polybutylene succinate, 7-40 parts of calcium carbonate, and 0.1-3 parts of a nucleating agent. The polylactic acid is a PLLA/PDLA copolymer, and the content of D is 85-99%. The extreme film blowing linear speed of the biodegradable composition at the temperature change rate of 10 C°/min is 80-120 m/min. The biodegradable composition of the present application has excellent film bubble stability, can achieve relatively high extreme linear speed, and facilitates industrial continuous production.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 3/26 - CarbonatesBicarbonates
• C08K 3/34 - Silicon-containing compounds
• C08K 3/36 - Silica

Abstract

Disclosed in the present invention are a PCR-PET composition, and a preparation method therefor and a use thereof. The PCR-PET composition comprises the following components in parts by weight: 78-88 parts of a PCR-PET resin; 12-20 parts of a toughening agent; 0.2-0.8 parts of a nucleating agent; and 0-0.5 parts of an antioxidant. According to the present invention, a PCR-PET resin having a specific yellow flake content is selected, a certain amount of a toughening agent (E-MA-GMA or E-BA-GMA) is added, and the GMA content of the toughening agent is optimized, such that a high-toughness PCR-PET composition having an impact strength greater than 19 kJ/m2 and allowing for production of injection molded parts having good appearance is prepared, thereby satisfying the use requirements of products having high toughness and realizing recycling of PCR-PET.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 23/08 - Copolymers of ethene

Abstract

A scratch-resistant soft-touch polypropylene composite material, the scratch-resistant soft-touch polypropylene composite material comprising the following components in parts by weight: 95-105 parts of polypropylene matrix, 10-55 parts of reinforcing filler, 5-25 parts of expanded graphite, 3-10 parts of buckyballs, 5-10 parts of hollow glass microspheres, and 1-5 parts of a coupling agent. The polypropylene composite material has high surface crystallinity, to provide good scratch resistance, and low internal crystallinity, causing the overall polypropylene material have a good soft touch.

IPC Classes  ?

• C08L 23/14 - Copolymers of propene
• C08L 23/12 - Polypropene
• C08K 7/24 - Expanded, porous or hollow particles inorganic
• C08K 7/28 - Glass
• C08K 7/14 - Glass
• C08K 3/04 - Carbon
• C08K 5/544 - Silicon-containing compounds containing nitrogen
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

The present invention belongs to the technical field of quantum-dot diffusion plates, and particularly relates to a quantum-dot diffusion plate, and a preparation method therefor and the application thereof. The quantum-dot diffusion plate comprises a diffusion layer, a quantum dot layer and a transparent layer, wherein the quantum dot layer is arranged between the diffusion layer and the transparent layer. The design of the diffusion layer and the transparent layer, which are respectively at the upper portion and lower portion, can ensure that quantum dots are protected by the upper and lower layers as well as ensuring a lighting effect of the diffusion plate, thereby preventing the quantum dots from inactivation caused by the impact of external factors during the use and storage of the quantum dots, and improving the brightness retention rate.

IPC Classes  ?

• G02B 5/02 - Diffusing elementsAfocal elements
• B82Y 20/00 - Nanooptics, e.g. quantum optics or photonic crystals
• B82Y 40/00 - Manufacture or treatment of nanostructures
• C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
• C09K 11/08 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials
• C09K 11/70 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing phosphorus
• C09K 11/88 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
• F21V 9/30 - Elements containing photoluminescent material distinct from or spaced from the light source

Abstract

The present invention relates to the technical field of biodegradable materials, and in particular to a biodegradable material and a manufacturing method therefor and a use thereof. The biodegradable material comprises the following components in parts by weight: 60-90 parts of flexible biodegradable polyester, 2-10 parts of polylactic acid, 2-30 parts of an inorganic filler, and 0-0.95 part of an auxiliary agent. The flexible biodegradable polyester of the biodegradable material has a molecular weight distribution coefficient PDI of 1.7 to 2.3 and a carboxyl end group content of less than 25 mol/t after shearing at 180°C. The biodegradable material manufactured in the present invention has the isotropy of longitudinal and transverse tearing under high and low temperature conditions, and has good aging resistance.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 3/26 - CarbonatesBicarbonates
• C08K 3/34 - Silicon-containing compounds
• C08J 5/18 - Manufacture of films or sheets

Abstract

Disclosed is a shrinkage-resistant polyphenylene ether composition, comprising the following components in parts by weight: 40-70 parts of a polyphenylene ether resin, 5-25 parts of a polystyrene resin, 1-4 parts of a toughening agent, 0.1-2 parts of a foaming agent, 0-30 parts of glass fiber, and 0-1 parts of an antioxidant; the weight ratio of the polyphenylene ether resin to the polystyrene resin is 2-14. The present invention prepares a polyphenylene ether composition having excellent anti-shrinkage effects by means of adding a specific proportion of polystyrene resin and foaming agent to a polyphenylene ether resin, which can significantly reduce post-shrinkage of injection molded parts during a cooling process and ensure relatively high toughness of a material, and is particularly suitable for thick-walled parts in the field of automotive electronics.

IPC Classes  ?

• C08L 71/12 - Polyphenylene oxides
• C08L 25/06 - Polystyrene
• C08J 9/08 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
• C08J 9/10 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen
• C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof from compositions containing microballoons, e.g. syntactic foams

Abstract

The present application belongs to the technical field of polymeric materials and discloses a polylactic acid, a preparation method therefor, and a use thereof. The polylactic acid of the present application has an intrinsic viscosity of 0.79-1.06 dl/g, a molecular weight distribution index (PDI) of 1.49-1.52, a lactide monomer content of < 0.5% by mass, and a shear viscosity in a range of 0.01-1 s-1 under the test condition of 190°C, and the shear viscosity and the shear rate of the polylactic acid satisfy a specific relationship. Compared with a conventional polylactic acid, the polylactic acid has a higher melt flow rate, is stable and does not stick to a mold and an injection molding opening during injection molding, and has high injection molding efficiency; and the resulting product has better aging resistance and is suitable for injection molding to obtain a plastic part having a wall thickness of 0.4 mm or less, such as a food packaging product, e.g., a meal box, a bowl, a plate, or a water cup.

IPC Classes  ?

• C08G 63/08 - Lactones or lactides
• C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

The present invention relates to the technical field of high polymer materials, and disclosed are an insulating flame-retardant polycarbonate composition and a use thereof. According to the polycarbonate composition of the present invention, by means of cooperation of specific types of a voltage stabilizer and a dispersing agent, the CTI electrical properties of a product can be effectively improved, the requirement of CTI 300 V≥50 drops is satisfied, thereby achieving excellent flame retardance; and additionally, enough normal-temperature toughness and low-temperature toughness are achieved, and the polycarbonate composition can be fully applied to the field of new energy.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 23/30 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment by oxidation
• C08K 5/08 - Quinones

Abstract

The present invention belongs to the field of polycarbonate materials. Specifically disclosed are a polycarbonate composition, and a preparation method therefor and the use thereof. By adding a certain amount of PCT, a metal deactivator and a compatibilizer containing a GMA functional group in the present invention, the polycarbonate composition has good compatibility and stability, thereby ensuring sufficient strength and processing stability, such that the polycarbonate composition has good flame retardance, heat resistance and chemical resistance.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08K 5/25 - Carboxylic acid hydrazides

Abstract

Disclosed are an aging-resistant insulating polycarbonate composition and a use thereof, belonging to the field of polymer materials. The polycarbonate composition of the present invention, by means of pairing a special type of voltage stabilizer with a dispersing agent, can not only effectively increase the CTI electrical property of a product, causing CTI to be 400V at greater than or equal to 50 drops, and enable the product to have excellent flame retardant properties, but can also achieve sufficient aging resistance. The polycarbonate composition is very suitable for preparation of photovoltaic inserts.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 23/30 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment by oxidation
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08L 83/10 - Block- or graft-copolymers containing polysiloxane sequences
• C08K 5/07 - AldehydesKetones
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

Abstract

The present invention relates to a polyester resin composition, a preparation method thereof and use thereof. The polyester resin composition includes a PCT resin, a white pigment, a reinforcing material, a polyester elastomer, and other additives. The polyester resin composition provided by the present invention has a strong binding force with a silica gel; when the polyester resin composition is made into an LED reflecting support, the LED reflecting support is not easy to separate from the silica gel in high temperature and high humidity environments, such that the service life of an LED lamp bead can be effectively prolonged; and meanwhile, the polyester resin composition has good toughness, and would not cause the problem of powder falling under repeated stress.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 7/10 - Silicon-containing compounds
• H10H 20/854 - Encapsulations characterised by their material, e.g. epoxy or silicone resins

Abstract

The present invention discloses a polyester, a preparation method therefor and use thereof. The polyester includes repeating units derived from the following components: a first component A, based on the total molar weight of the first component A, including: a1) 81-100 mol % of succinic acid, or an ester derivative thereof or an anhydride derivative thereof, and a2) 0-19 mol % of a dicarboxylic acid other than succinic acid, or an ester derivative thereof or an anhydride derivative thereof; a second component B: 1,4-butanediol; and a third component C: a dimer(1,4-butanediol); based on the total molar weight of the first component A, the molar content of the repeating unit —CH2CH2CH2CH2—O— in the third component C is 0.05-3.0 mol %. In the present invention, the molar content of the repeating unit —CH2CH2CH2CH2—O— in dimer(1,4-butanediol) is controlled to 0.05-3.0 mol %, and thus, the resin color of the polyester can be effectively improved.

IPC Classes  ?

• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof

Abstract

The present invention relates to the technical field of polymers, and in particular to a polyamide molding composition and a preparation method therefor and a use thereof. The polyamide molding composition comprises the following components in parts by weight: 40-75 parts of a PAXC/YC resin, 15-45 parts of a white pigment, 5-20 parts of a reinforcing filler, and 0.5-5 parts of an anti-yellowing agent; and the amino end group content [n] of the PAXC/YC resin meets the following range: 10mol/t≤[n]≤100mol/t; the anti-yellowing agent comprises at least one of magnesium titanate and magnesium phosphate. The polyamide molding composition prepared in the present invention can effectively inhibit yellowing of the resin during high-temperature baking, and significantly improve the reflectivity of blue light having a wavelength of 450nm in an LED packaging process.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08K 3/24 - AcidsSalts thereof
• C08K 3/22 - OxidesHydroxides of metals
• C08K 7/14 - Glass
• G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics

Abstract

The present invention belongs to the technical field of polymer engineering plastics. Disclosed are a PBT composite material, and a preparation method therefor and the use thereof. The PBT composite material provided by the present invention comprises the following components in parts by mass: 30-60 parts of a PBT resin, 25-40 parts of alkali-free glass fibers, 12-20 parts of aluminum diethyl hypophosphite, 2-8 parts of melamine polyphosphate, and 1-4 parts of a phosphate. When the PBT composite material provided by the present invention is prepared into a thin-wall (≤0.4 mm) product, the PBT composite material still has a good flame retardant property, and the obtained product has good fluidity, and also has good tensile strength and impact strength; and the preparation method provided by the present invention is simple, and is beneficial to actual production.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 23/08 - Copolymers of ethene
• C08K 7/14 - Glass
• C08K 9/00 - Use of pretreated ingredients
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 5/3492 - Triazines
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
• C08K 13/06 - Pretreated ingredients and ingredients covered by the main groups

Abstract

The present invention relates to the field of flame-retardant carbonates. Specifically, disclosed are a flame-retardant polycarbonate composition, a preparation method therefor and a use thereof. The flame-retardant polycarbonate composition of the present invention comprises the following components in parts by weight: 100 parts of polycarbonate, 0.01-0.1 parts of a sulfonate flame retardant, 0.03-0.1 parts of an anti-dripping agent, and 2-8 parts of talcum powder. The melt flow index of polycarbonate is 5.5-25 g/10 min; the average particle size of the talcum powder is 4-8 microns, and the pH value of the talcum powder is 7.5-8.8. According to the present invention, by controlling the particle size and the pH value range of the talcum powder, the flame-retardant polycarbonate composition has excellent flame resistance of 5 VA at 2.0 mm, also has the advantages of high mechanical strength and environmental protection, and is particularly suitable for electronic and electrical products.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08K 3/34 - Silicon-containing compounds
• C08K 5/42 - Sulfonic acidsDerivatives thereof

Abstract

A polypropylene composite material, and a preparation method therefor and a use thereof, relating to the field of automotive interior and exterior materials. The polypropylene composite material comprises the following components in parts by weight: 59-90 parts of a polypropylene resin, 5-15 parts of a high-density polyethylene resin, 5-10 parts of a 1-octene-ethylene block copolymer, 5-10 parts of an ethylene-propylene copolymer, 5-15 parts of glass fiber, and 0.05-2 parts of a nucleating agent. The compounding of the 1-octene-ethylene block copolymer and the ethylene-propylene copolymer can improve the bending and cracking resistance of a glass fiber reinforced polypropylene composite resin; additionally, the addition of the high-density polyethylene resin can uniformly disperse the glass fiber in the polypropylene resin, making the polypropylene composite material have a good appearance.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 23/06 - Polyethene
• C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
• C08L 23/08 - Copolymers of ethene
• C08K 3/04 - Carbon
• C08K 3/32 - Phosphorus-containing compounds
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
• C08K 7/14 - Glass
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

The present disclosure relates to a polypropylene composition resistant to thermo-oxidative aging, a preparation method and a use thereof. The polypropylene composition resistant to thermo-oxidative aging comprises polypropylene, a toughener, a filler, carbon black and other additive or additives. The polypropylene composition resistant to thermo-oxidative aging provided in the present disclosure has a better thermo-oxidative aging resistance by adding specific carbon black, without any complicated surface modification for the carbon black, and the polypropylene composition can be widely used in auto parts or cables.

IPC Classes  ?

• C08K 3/04 - Carbon
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 3/26 - CarbonatesBicarbonates
• C08K 3/34 - Silicon-containing compounds
• C08L 23/12 - Polypropene

Abstract

A halogen-free flame-retardant polyamide composition, and a preparation method therefor and the use thereof. The halogen-free flame-retardant polyamide composition comprises the following components in parts by weight: 30-80 parts of a polyamide resin, 10-40 parts of glass fibers, 10-30 parts of a halogen-free flame retardant, and 0.1-3 parts of a zinc-containing compound, wherein the melting point of the zinc-containing compound is less than or equal to 600°C, and the halogen-free flame retardant is a dialkyl phosphinate salt. By adding an inorganic zinc-containing compound having a specific melting point, ionization will take place at a flame temperature to generate zinc ions, which are coordinated with the polyamide resin and the halogen-free flame retardant to prevent the phenomenon of molten droplets during the combustion process, and the flowability of the polyamide composition will not be affected.

IPC Classes  ?

• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08K 7/14 - Glass

Abstract

A polycarbonate composition having a low shrinkage rate, and a preparation method therefor and a use thereof. The polycarbonate composition having a low shrinkage rate comprises the following components in parts by weight: 55-99.9 parts of a polycarbonate resin, 0.5-10 parts of a toughening agent, 0.1-2 parts of a spherical filler, and 5-30 parts of a composite flaky filler. The polycarbonate composition has a low shrinkage rate and excellent rigidity and toughness, and a product prepared from the polycarbonate composition has high weld line strength and good appearance, and can meet the quality requirements of processing technologies and post-assembly.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08L 23/08 - Copolymers of ethene
• C08K 7/18 - Solid spheres inorganic
• C08K 7/00 - Use of ingredients characterised by shape
• C08K 3/34 - Silicon-containing compounds

Abstract

A semi-aromatic polyamide composition comprises the following components in parts by weight: 52-75 parts of a semi-aromatic polyamide resin, 25-45 parts of a glass fiber and 0-3 parts of an elastomer. The concentration of a terminal amino group of the semi-aromatic polyamide resin is 100-150 mol/t, and the concentration of a terminal carboxyl group of the semi-aromatic polyamide resin is ≤ 50 mol/t. The average diameter of the glass fiber is 0.1-15 microns. By means of investigation of the concentration of the terminal amino group, the concentration of the terminal carboxyl group and the relative viscosity of the semi-aromatic polyamide, and exploration of the diameter of the glass fiber, the composition achieves remarkably improved hydrolysis resistance.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 23/08 - Copolymers of ethene
• C08K 7/14 - Glass

Abstract

Disclosed in the present invention is a flame-retardant polyamide composition. The flame-retardant polyamide composition comprises the following components in parts by weight: 35-75 parts of a polyamide resin, 5-22 parts of an organic hypophosphite flame retardant and 0.1-5 parts of a glowing filament modifier, wherein the glowing filament modifier is a nitrogen-containing metal phosphate. In the present invention, by means of adding the specific glowing filament modifier into the flame-retardant polyamide composition, a glowing filament temperature can be increased.

IPC Classes  ?

• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 3/32 - Phosphorus-containing compounds

Abstract

Disclosed are a semi-aromatic polyester, and a preparation method therefor and a use thereof. In the present invention, on the basis of the total molar amount of diacid, the molar content of a repeating unit —CH2CH2CH2CH2—O— in dimer(1,4-butanediol) is controlled to be 0.05-0.35 mol %, which can effectively improve the resin color of the semi-aromatic polyester.

IPC Classes  ?

• C08G 63/672 - Dicarboxylic acids and dihydroxy compounds
• C08G 63/183 - Terephthalic acids
• C08G 63/85 - Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof

Abstract

The present invention discloses a semi-aromatic polyester, and a preparation method therefor and an application thereof. The semi-aromatic polyester has a specific scope of double bond content. Compared with the existing semi-aromatic polyester, the semi-aromatic polyester of the present invention has better melting heat retention stability and fine color.

IPC Classes  ?

• C08G 63/183 - Terephthalic acids
• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/78 - Preparation processes

Abstract

The present invention relates to the technical field of fiber preparation. Disclosed are a high-pressure sampling system and a sampling method thereof, and a high-pressure flash apparatus. The high-pressure sampling system comprises a reaction kettle, a first sampling apparatus, and a second sampling apparatus. A first sampling tube is connected between the first sampling apparatus and the reaction kettle; a second sampling tube is connected between the second sampling apparatus and the reaction kettle; the first sampling tube is partially inserted into the bottom of the reaction kettle; the second sampling tube is partially inserted into the top of the reaction kettle; a first sampling valve is arranged on the first sampling tube; a second sampling valve is arranged on the second sampling tube; and the first sampling valve and the second sampling valve are both arranged outside the reaction kettle. According to the high-pressure sampling system of the present invention, by determining the composition of a high-pressure flash spinning fluid and the composition of a gas-phase medium inside a reaction kettle, the composition and the optimal formation conditions of the high-pressure flash spinning fluid can be clarified, providing a strong basis for the controllable preparation of the high-pressure flash spinning fluid and high-pressure flash nano/microfibers.

IPC Classes  ?

• G01N 1/10 - Devices for withdrawing samples in the liquid or fluent state

Abstract

A dispersion flash-spinning device and method. The device comprises a reaction container (100), a negative pressure pumping apparatus (200) and a heating apparatus (300); the reaction container (100) is provided with a first connecting opening (1), a second connecting opening (2) and a third connecting opening (3); the first connecting opening (1) and the second connecting opening (2) are located opposite to each other; a spinning spinneret (400) is connected to the first connecting opening (1), a deflection apparatus (500) is connected to the second connecting opening (2), and the negative pressure pumping device (200) is connected to the third connecting opening (3).

IPC Classes  ?

• D01D 5/11 - Flash-spinning
• D01D 13/02 - Elements of machines in combination

Abstract

The present invention relates to a cleaning device using a traction mode. The cleaning device comprises a device frame, and a cleaning assembly, a first conveying assembly, a second conveying assembly and a first driving assembly which are all mounted on the device frame. The first conveying assembly and the second conveying assembly are arranged on two sides of the device frame respectively, the first conveying assembly comprising a first transmission mechanism, a first conveying member, and locking portions mounted on the first conveying member, and the second conveying assembly comprising a second transmission mechanism, a second conveying member and press-fit portions mounted on the second conveying member and capable of being fitted to the locking portions. The device frame or the first transmission mechanism is provided with a separation and engagement assembly for driving a feeding end of the first transmission mechanism to rotate. After entering the locking portions and the press-fit portions, materials are clamped by means of resetting the two portions; then the first conveying member and the second conveying member drive said locking portions, said press-fit portions and the clamped materials to be conveyed forwards; and the subsequently fed materials are also clamped by different locking portions and press-fit portions. Therefore, using the traction mode to convey materials can also achieve continuous automatic feeding of materials.

IPC Classes  ?

• B29B 17/00 - Recovery of plastics or other constituents of waste material containing plastics

Abstract

The present invention provides a PA10T molding composite material that can be used to produce LED display light source reflection supports. The width of the crystallization peak at half maximum ΔT1/2 is adjusted to be 3-10° C., the whiteness is adjusted to be less than 26, and the 460 nm light source reflectivity is adjusted to be less than 6.5%, such that the PA 10T molding composite material has the advantages of low blue light, high contrast, and high gray scale, and can satisfy requirements for a packaging process and long-term reliability, and can be used as a packaging product to manufacture high-contrast LED display light source refection supports applicable in multiple scenarios.

IPC Classes  ?

• C08K 3/34 - Silicon-containing compounds
• B29B 7/00 - MixingKneading
• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
• B29K 105/12 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
• B29K 507/04 - Carbon
• B29K 509/02 - Ceramics
• B29L 11/00 - Optical elements, e.g. lenses, prisms
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 3/04 - Carbon
• H01L 33/58 - Optical field-shaping elements

Abstract

The present invention discloses a semi-aromatic polyester, a preparation method therefor and use thereof. The content of hydroxyl in a semi-aromatic polyester is controlled, and particularly, the content of hydroxyl linked to aliphatic dicarboxylic acid in the semi-aromatic polyester is controlled to 17-40 mmol/kg, the content of hydroxyl linked to aromatic dicarboxylic acid in the semi-aromatic polyester is controlled to 17-40 mmol/kg, and the total content of hydroxyl is controlled to 35-80 mmol/kg, such that the compatibility of the semi-aromatic polyester with materials, e.g., polylactic acid can be significantly improved, thereby obtaining a high-strength tear-resistant film material.

IPC Classes  ?

• C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
• C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
• C08G 63/183 - Terephthalic acids
• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/81 - Preparation processes using solvents
• C08J 5/18 - Manufacture of films or sheets
• C08L 75/06 - Polyurethanes from polyesters

Abstract

The present invention relates to the technical field of degradable materials, and provides a biodegradable aliphatic polyester composition, and a preparation method therefor and a use thereof as a packaging film. The biodegradable aliphatic polyester composition of the present invention comprises a biodegradable aliphatic polyester and a cyclic ester. The biodegradable aliphatic polyester comprises: a component A, i.e., a dicarboxylic acid compound, on the basis of the total molar weight of the component A, comprising a1: 65-95 mol% of succinic acid or a derivative of an ester of the succinic acid, or a mixture thereof, and a2: 5-35 mol% of adipic acid or a derivative of an ester of the adipic acid, or a mixture thereof; and a component B, i.e., 1,4-butanediol having a molar weight at least equal to that of the component A. The cyclic ester comprises compounds represented by formula (I) and formula (II), the content of the cyclic ester having the structures represented by formula (I) and formula (II) is 538-1100 ppm on the basis of the total weight of the biodegradable aliphatic polyester composition, and the TVOC content of the biodegradable aliphatic polyester composition is not greater than 157 ppm.

IPC Classes  ?

• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/78 - Preparation processes
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/18 - Manufacture of films or sheets
• B65D 65/46 - Applications of disintegrable, dissolvable or edible materials

Abstract

The present invention belongs to the technical field of degradable materials, and provides a biodegradable aliphatic polyester composition, and a preparation method therefor and the use thereof. The biodegradable aliphatic polyester composition of the present invention comprises a biodegradable aliphatic polyester and a cyclic esterified substance. The biodegradable aliphatic polyester comprises: a component A, i.e. a dicarboxylic acid compound; and a component B, i.e. 1,4-butanediol, which having at least the equimolar amount of the component A. The cyclic esterified substance comprises compounds as shown in formula (I) and formula (II). The content of the cyclic esterified substance is 0.6-1.1 wt.% on the basis of the total weight of the biodegradable aliphatic polyester composition, and the mass ratio of the compounds as shown in formula (I) to formula (II) is 2-6 : 1. By controlling polymeric monomers of the biodegradable aliphatic polyester composition and rationally regulating and controlling the proportion of the compounds as shown in formula (I) and formula (II), the present invention greatly reduces the precipitation of the cyclic ester and effectively improves the heat-sealing strength.

IPC Classes  ?

• C08G 63/20 - Polyesters having been prepared in the presence of compounds having one reactive group or more than two reactive groups
• C08G 63/78 - Preparation processes
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08J 5/18 - Manufacture of films or sheets
• B65D 65/46 - Applications of disintegrable, dissolvable or edible materials

Abstract

The invention relates to a PC resin material with a neutral filtering effect, and a preparation method therefor and the use thereof. The PC resin material with a neutral filtering effect provided in the present invention comprises polycarbonate, an antioxidant, a dispersing agent and an additive. The PC resin material with a neutral filtering effect provided in embodiments of the present invention has a flat transmittance curve at a spectral band of 400-1000 nm, a better neutral filtering effect and the advantages of easy machinability and low costs, and can be widely applied to the preparation of optical products.

IPC Classes  ?

• C08K 3/22 - OxidesHydroxides of metals
• B29B 9/10 - Making granules by moulding the material, i.e. treating it in the molten state
• B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
• B29K 69/00 - Use of polycarbonates as moulding material
• B29K 505/10 - Copper
• B29L 11/00 - Optical elements, e.g. lenses, prisms
• C08K 5/101 - EstersEther-esters of monocarboxylic acids
• C08K 5/13 - PhenolsPhenolates
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4

Abstract

Disclosed is a furan diacid-based polyamide resin, which is derived from the following repeating units: (A) 2,5-furandicarboxylic acid, (B) 1,4-cyclohexanedicarboxylic acid, and (C) 1,10-decanediamine, where based on the total molar percentage of the diacid units, (A) accounts for 5-45 mol % of the diacid units.

IPC Classes  ?

• C08G 69/40 - Polyamides containing oxygen in the form of ether groups
• C08G 69/04 - Preparatory processes
• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08K 5/3492 - Triazines
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 7/14 - Glass

Abstract

The present invention provides a semi-aromatic polyamide molding composite material that can be used for producing an LED display screen light source reflection support. Generally, by selecting a semi-aromatic polyamide resin having a specific repeating unit, and enabling the crystallization peak width at half maximum ΔT1/2 to be 4-11° C., the whiteness to be less than 26.5, the reflectivity under a 460 nm light source to be less than 6% etc., the semi-aromatic polyamide molding composite material has the advantages of reduced blue light, high contrast ratio and high gray scale, and can meet requirements for the packaging process and long-term reliability. The package product can be used for manufacturing high-contrast LED display screen light source refection supports for use in multiple environments.

IPC Classes  ?

• C08K 3/34 - Silicon-containing compounds
• B29B 9/10 - Making granules by moulding the material, i.e. treating it in the molten state
• B29B 9/12 - Making granules characterised by structure or composition
• B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
• B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
• B29K 507/04 - Carbon
• B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof
• C08K 3/04 - Carbon
• C08K 5/13 - PhenolsPhenolates

Abstract

The present invention discloses a furan diacid-based polyamide, which is derived from the following repeating units: (A) 2,5-furandicarboxylic acid, (B) 1,4-cyclohexanedicarboxylic acid, and (C) 1,5-pentanediamine, where based on the total molar percentage of the diacid units, (A) accounts for 10-45 mol % of the diacid units. The furan diacid-based polyamide of the present invention has a melting point of 291-335° C.

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08G 69/28 - Preparatory processes
• C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 7/14 - Glass

Abstract

An ABS rubber powder and a preparation method therefor, an ABS material and a vehicle interior trim part. The ABS rubber powder comprises a continuous phase and a dispersed phase dispersed in the continuous phase, wherein the continuous phase comprises an acrylonitrile-styrene copolymer, and the dispersed phase comprises polybutadiene, the polybutadiene comprising a first butadiene rubber and a second butadiene rubber. The average particle size of the first butadiene rubber is 250-350 nm, and the average particle size of the second butadiene rubber is 800-2000 nm; and the weight ratio of the first butadiene rubber to the second butadiene rubber is (40-50): (3-7). The ABS rubber powder has relatively good damping performance and a good long-acting anti-noise effect.

IPC Classes  ?

• C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08F 212/08 - Styrene
• C08F 220/44 - Acrylonitrile

Abstract

The present invention belongs to the field of biodegradable polyesters, and particularly relates to a biodegradable polyester composition, and a preparation method therefor and the use thereof. The biodegradable polyester composition comprises the following components in percentages by weight: i, 75-100 wt% of a biodegradable copolyester, based on the total weight of components i-ii; ii, 0-25 wt% of polylactic acid, based on the total weight of components i-ii; iii, 15-30 wt% of acid-etchable inorganic rigid particles, based on the total weight of components i-iv; and iv, 1-15 wt% of non-acid-etchable inorganic rigid particles, based on the total weight of components i-iv, wherein the distribution of the mixed particle size of the acid-etchable inorganic rigid particles and the non-acid-etchable inorganic rigid particles satisfies: D90<12 μm, and D95=15-25 μm. A film prepared in the present invention has better mechanical properties and relatively low apparent density under the condition of similar apparent thickness.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08K 3/34 - Silicon-containing compounds
• C08K 3/26 - CarbonatesBicarbonates
• C08K 5/20 - Carboxylic acid amides

Abstract

Disclosed in the present invention is polybutadiene latex. The solid rubber in the polybutadiene latex contains 7-10 g/L of a vinyl structure, 18-30 g/L of a trans-1,4 butadiene structure, and 10-24 g/L of a cis-1,4 butadiene structure. The polybutadiene latex of the present invention has a low horizontal combustion speed. Further disclosed in the present invention are a preparation method for the polybutadiene latex and a use of the polybutadiene latex in ABS high rubber powder. The ABS resin obtained by blending the ABS high rubber powder has a low horizontal combustion speed.

IPC Classes  ?

• C08F 136/06 - Butadiene
• C08F 2/26 - Emulsion polymerisation with the aid of emulsifying agents anionic
• C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

The present invention relates to the field of engineering plastics, and particularly relates to a modified ABS plastic powder, a preparation method therefor, an ABS resin and an automotive interior part. The modified ABS plastic powder comprises a residual-monomer adsorbent and titanium dioxide modified by doping same with a transition metal element, the residual-monomer adsorbent comprising diatomite, a molecular sieve, porous silicate or a combination thereof. The residual-monomer adsorbent achieves physical adsorption on residual monomers in the modified ABS plastic powder; in addition, the titanium dioxide modified by doping same with a transition metal element can continuously decompose the residual monomers adsorbed by the residual-monomer adsorbent. Therefore, the modified ABS plastic powder in the embodiment has reduced contents of residual monomers, and has the properties of low odor and low diffusion.

IPC Classes  ?

• C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
• C08F 212/08 - Styrene
• C08F 220/44 - Acrylonitrile
• C08F 6/00 - Post-polymerisation treatments
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

Disclosed in the present invention are a polypropylene composition, and a preparation method therefor and the use thereof. The polypropylene composition comprises the following components in parts by weight: 90-95 parts of polypropylene, 1-2 parts of hypophosphite, 0.5-2 parts of a brominated flame retardant, 0.2-0.5 parts of a flame retardant synergist, 0.1-0.4 parts of a main antioxidant, 0.1-0.4 parts of an auxiliary antioxidant, and 0.2-0.4 parts of a hindered amine light stabilizer other than an N-substituted alkoxy hindered amine, wherein the flame retardant synergist is one or more of N-substituted alkoxy hindered amines. The polypropylene composition provided in the present invention has the advantages of resistance to high-temperature failure, a long chalking time and low probability of discoloration during processing.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 79/04 - Polycondensates having nitrogen-containing heterocyclic rings in the main chainPolyhydrazidesPolyamide acids or similar polyimide precursors
• C08K 3/32 - Phosphorus-containing compounds
• C08K 5/3492 - Triazines
• C08K 5/375 - Sulfides containing six-membered aromatic rings
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08K 5/3435 - Piperidines

Abstract

The present invention relates to polybutadiene latex and a preparation method therefor, and ABS resin and a preparation method therefor. The average particle size of the polybutadiene latex is 290-315 nm, the half-peak width of a number-average particle size distribution curve is 20-150 nm, and the content of residual butadiene monomers in the polybutadiene latex accounts for 0.005-1.6% of the whole dry basis of the polybutadiene latex. The ABS resin comprises 15-40 parts of ABS high rubber powder and 60-78 parts of styrene-acrylonitrile copolymer. The ABS resin has good electroplating surface appearance and coating binding force.

IPC Classes  ?

• C08F 136/06 - Butadiene
• C08F 2/26 - Emulsion polymerisation with the aid of emulsifying agents anionic
• C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents
• C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
• C08F 212/10 - Styrene with nitriles
• C08F 220/44 - Acrylonitrile
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

Provided in the present invention are a red phosphorus flame-retardant polyamide composite material, a preparation method therefor and the use thereof. The red phosphorus flame-retardant polyamide composite material comprises the following components in parts by weight: 13.9-70.89 parts of PA66, 4-8.45 parts of red phosphorus, 10-35 parts of a reinforcing material, 6-20 parts of a toughening agent and 0.1-1 part of a zirconium compound, the zirconium compound being at least one of metazirconic acid or zirconic anhydride. The red phosphorus flame-retardant polyamide composite material has the characteristics of low corrosivity, good toughness, red phosphorus being less prone to oxidation and high CTI value.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08K 3/02 - Elements
• C08K 7/14 - Glass
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/24 - AcidsSalts thereof
• C08L 23/08 - Copolymers of ethene

Abstract

Disclosed in the present invention is a polyamide resin, which comprises the following repetitive units in percentages by mole: a diacid unit: 1,4-cyclohexanedicarboxylic acid; and diamine units: 1,10-decamethylene diamine and 1,12-dodecanediamine, wherein the amount-of-substance fraction of 1,10-decamethylene diamine in diamine is 76-82%. In the polyamide resin of the present invention, the amount-of-substance fraction of a trans-structure in the polyamide resin is 81-85%. In the present invention, by controlling the amount-of-substance fraction of each unit in polyamide, a specific trans-structure proportion can be obtained, which destroys the regularity of a molecular chain, such that the polyamide resin not only has relatively high initial light transmittance, but can also maintain relatively high light transmittance after an SMT treatment since same is free of the phenomenon of recrystallization after the SMT treatment.

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08G 69/28 - Preparatory processes
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids