Abstract

Disclosed is a resin composition which contains a first polycarbonate resin, a second polycarbonate resin, and a styrene-based resin, wherein: the refractive index of the first polycarbonate resin, the refractive index of the second polycarbonate resin, and the refractive index of the styrene-based resin satisfy the relational expression: (refractive index of first polycarbonate resin) < (refractive index of styrene-based resin) < (refractive index of second polycarbonate resin); and when the resin composition is molded into an article that has a thickness of 3 mm, the haze thereof is less than 20%. Also disclosed are pellets which use the resin composition, and a molded article.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08J 5/18 - Manufacture of films or sheets
• C08L 25/04 - Homopolymers or copolymers of styrene

Abstract

This polycarbonate resin composition is characterized by containing 0.01-4 parts by mass of a polylactone-polyether copolymer (B) with respect to 100 parts by mass of a polycarbonate resin (A).

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08G 81/00 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
• C08K 5/101 - EstersEther-esters of monocarboxylic acids
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08L 73/00 - Compositions of macromolecular compounds obtained by reactions forming a linkage containing oxygen or oxygen and carbon in the main chain, not provided for in groups Compositions of derivatives of such polymers

Abstract

A polycarbonate resin composition may include, relative to 100 parts by mass of a polycarbonate resin (A), 0.001 to 0.3 parts by mass of a triaryl phosphate (B) given by a specific formula (1) A polycarbonate resin composition may include, relative to 100 parts by mass of a polycarbonate resin (A), 0.001 to 0.3 parts by mass of a triaryl phosphate (B) given by a specific formula (1) A polycarbonate resin composition may include, relative to 100 parts by mass of a polycarbonate resin (A), 0.001 to 0.3 parts by mass of a triaryl phosphate (B) given by a specific formula (1) and 0.0012 to 0.12 parts by mass of a phenolic structure-bearing compound (C). The phenolic structure-bearing compound (C) may contain a specific amount of at least one selected from 2,4-di-tert-butylphenol, 2,2-bis(4-hydroxyphenyl)propane, cumylphenol, and 4-tert-butylphenol.

IPC Classes  ?

• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08J 3/12 - Powdering or granulating
• C08K 5/13 - PhenolsPhenolates
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

A polycarbonate resin composition characterized by comprising, relative to 100 parts by mass of a polycarbonate resin (A), 0.0001-0.3 part by mass of a triaryl phosphate (B) represented by general formula (1), 1-100 parts by mass of a fibrous filler (C), and at least one of the following (i) to (iv) in the amounts shown below. (i) 0.0005-0.1 part by mass of 2-4-di-tert-butylphenol (ii) 0.0001-0.03 part by mass of 2,2-bis(4-hydroxyphenyl)propane (iii) 0.0005-0.05 part by mass of 4-tert-butylphenol (iv) 0.001-0.05 part by mass of cumylphenol　

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/13 - PhenolsPhenolates
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
• C08K 5/526 - Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
• C08K 7/04 - Fibres or whiskers inorganic

Abstract

Provided are a resin composition capable of providing a molded article having a low YI value, a pellet, and a molded article. This resin composition contains 0.01-1.5 parts by mass of a compound represented by formula (1) with respect to 100 parts by mass of a polycarbonate resin. In formula (1), R each independently represent a substituted or unsubstituted C1-10 aliphatic hydrocarbon group.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/06 - EthersAcetalsKetalsOrtho-esters

Abstract

Provided are: a resin composition capable of providing a molded article having a low YI value and high light transmittance in a visible region; a pellet; and a molded article. This resin composition contains 0.01-1.5 parts by mass of a compound represented by formula (1) and 0.01-1.5 parts by mass of an epoxy compound and/or an oxetane compound with respect to 100 parts by mass of a polycarbonate resin, wherein the content of a phosphate compound having the structure represented by formula (P) is 0% by mass or more but less 0.01% by mass of the resin composition.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/05 - AlcoholsMetal alcoholates
• C08K 5/06 - EthersAcetalsKetalsOrtho-esters
• C08K 5/527 - Cyclic esters
• C08K 5/1525 - Four-membered rings
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

The present invention produces a polycarbonate resin composition pellet which has excellent transparency in a high-productivity manner which is more stable than before, by using a super-high-torque twin-screw extruder. This method for producing a polycarbonate resin composition pellet is characterized in that a polycarbonate resin particulate having a specific molecular weight and particle diameter is used as a starting material, kneading is performed with the screw shaft torque density in the range of 9.0-17.0 Nm/cm3and the screw rotation speed in the range of 400-800 rpm, and under the conditions of the cube (cm3) of the discharge amount (kg/h) ÷ the screw rotation speed (rpm) ÷ the center-to-center distance of the two screw shafts being 0.015-0.026 kg/h/rpm/cm3, the unmelted ratio in the die holder is in the range of 2-30%, and a strand extruded from the die is collected and made into pellets.

IPC Classes  ?

• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• B29B 7/46 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
• B29B 7/84 - Venting or degassing
• B29K 69/00 - Use of polycarbonates as moulding material

Abstract

A polycarbonate resin composition comprising, per 100 mass parts of a polycarbonate resin (A), 0.001 to 0.3 mass parts of an arylphosphine oxide (B) and 0.0012 to 0.03 mass parts of a phenolic structure-bearing compound (C1), wherein the phenolic structure-bearing compound (C1) is at least one selection from bisphenol A, 4-tert-butylphenol, cumylphenol, and phenol; and in a case of containing the bisphenol A, the content thereof is 0.002 to 0.03 mass parts; in a case of containing the 4-tert-butylphenol, the content thereof is 0.0012 to 0.01 mass parts; in a case of containing the cumylphenol, the content thereof is 0.0012 to 0.01 mass parts; and in a case of containing the phenol, the content thereof is 0.0012 to 0.01 mass parts.

IPC Classes  ?

• C08J 3/12 - Powdering or granulating
• C08K 5/13 - PhenolsPhenolates
• C08K 5/1515 - Three-membered rings
• C08K 5/50 - Phosphorus bound to carbon only

Abstract

To provide a resin composition which contains a polycarbonate resin; and an alkali metal salt and/or alkaline earth metal salt of fluoromethanesulfonylimide having a zinc content of 0.1 ppm by mass or higher.

IPC Classes  ?

• C08K 5/435 - Sulfonamides
• C08K 9/02 - Ingredients treated with inorganic substances
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

This polycarbonate resin composition comprises (A) 55-90 mass% of a polycarbonate resin having a viscosity average molecular weight of 17,500-30,000; and (B)10-45 mass% of a graft copolymer including (b1) an aromatic vinyl monomer component, (b2) a vinyl cyanide monomer component, and (b3) a diene-based rubbery polymer component. The polycarbonate resin composition comprises (C) 0.001-0.3 parts by mass of an aryl phosphine oxide and (D) 0.001-0.3 parts by mass of a compound having a phenolic structure, based on 100 parts by mass of (A) and (B) in total. The polycarbonate resin composition is characterized in that the compound (D) having a phenolic structure contains at least one of 4-t-butylphenol, 2,4-di-t-butylphenol, 4-α-cumylphenol, and bisphenol A.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/13 - PhenolsPhenolates
• C08K 5/50 - Phosphorus bound to carbon only
• C08K 5/5397 - Phosphine oxides
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

The present invention produces resin pellets that have low ellipticity uniformly and without variation. A method for producing resin pellets, wherein: when extruding a thermoplastic resin composition in strand shapes from a die at an extruder tip, used as the die is a lateral direction flat die; the temperature of a strand from a die hole at an edge of the flat die is set 4-14°C lower than the temperature of a strand from a die hole at the center of the flat die; the distance (A-C) to a position C at which the strands contact an initial guide roller is 7-30 cm; and the distance (B-C) from a position B at which the strands enter a water surface to the position C is 10-60% of the A-C distance.

IPC Classes  ?

• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• B29C 48/345 - Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
• B29C 48/355 - Conveyors for extruded articles

Abstract

A polycarbonate resin composition characterized by containing 0.001-0.3 mass parts of a specific triaryl phosphate (C) represented by general formula (1) and 0.001-0.3 mass parts of a compound (D) having a phenolic structure per 100 total mass parts of (A) and (B) that contain 55-90 mass% of a polycarbonate resin (A) having a viscosity average molecular weight of 17,500-30,000 and 10-45 mass% of a graft copolymer (B) containing an aromatic vinyl monomer component (b1), a vinyl cyanide monomer component (b2), and a diene rubber polymer component (b3), and by the compound (D) having a phenolic structure containing at least one of 4-t-butylphenol, 2,4-di-t-butylphenol, 4-α-cumylphenol, and bisphenol A.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/13 - PhenolsPhenolates
• C08K 5/523 - Esters of phosphoric acids, e.g. of H3PO4 with hydroxyaryl compounds
• C08K 5/526 - Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

This fibrous filler stirring/supplying device enables uniform and stable conveyance using a screw, even for fibrous fillers that spread readily, have low bulk density, and aggregate readily into cotton-like formations.　The fibrous filler stirring/supplying device feeds fibrous filler from a hopper accommodating the fibrous filler to a discharge section, and is characterized by: comprising a connection tank between the hopper and the discharge section; being provided with, in the connection tank, a shaft that rotates about a rotation axis, and stirring blades for stirring the fibrous filler, the blades being attached at the tips of the shaft so as to rotate along the inner periphery of the connection tank; and the stirring blades being inclined inward at an angle Θ of 10° to 70° with respect to the rotational direction of the stirring blades.

IPC Classes  ?

• B29B 7/90 - Fillers or reinforcements
• B01F 23/57 - Mixing high-viscosity liquids with solids
• B01F 27/112 - Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
• B01F 27/1123 - Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades sickle-shaped, i.e. curved in at least one direction
• B01F 27/61 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis about an inclined axis
• B01F 27/70 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
• B01F 35/213 - Measuring of the properties of the mixtures, e.g. temperature, density or colour
• B01F 35/71 - Feed mechanisms
• B01F 35/75 - Discharge mechanisms
• B01J 4/00 - Feed devicesFeed or outlet control devices
• B29B 7/14 - MixingKneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with screw or helix
• B29B 7/24 - Component parts, details or accessoriesAuxiliary operations for feeding
• B29B 7/60 - Component parts, details or accessoriesAuxiliary operations for feeding, e.g. end guides for the incoming material

Abstract

Provided is a polycarbonate resin composition characterized by containing, with respect to 100 parts by mass of a polycarbonate resin (A): 0.01-15 parts by mass of a flame retardant (B); 1-15 parts by mass of a diene rubber graft copolymer (C); and 0.01-1 part by mass of a fluoropolymer (D), wherein the diene rubber graft copolymer (C) has a total amount of phosphorus of at least 1,000 ppm and a total amount of calcium of at least 300 ppm as measured by X-ray fluorescence analysis.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• 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

To provide a resin composition having high relative permittivity, while keeping low loss tangent, and excellent mechanical strength; a molded article; and a method for manufacturing a plated molded article. A resin composition comprising: per 100 parts by mass of a thermoplastic resin, 0.3 to 10 parts by mass an acid-modified polymer; 5 to 150 parts by mass of a laser direct structuring additive; and 10 to 150 parts by mass of a reinforcing fiber, the laser direct structuring additive being a compound being a conductive oxide having a resistivity of 5×103 Ω·cm or smaller, and containing at least one type selected from a Group n (n represents an integer of 3 to 16) metal in the periodic table and a Group n+1 metal, or, calcium copper titanate.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 7/14 - Glass
• C08K 3/22 - OxidesHydroxides of metals
• C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
• C23C 18/31 - Coating with metals
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08K 5/00 - Use of organic ingredients

Abstract

Provided are a resin composition excellent in terms of flame retardancy and heat resistance and a molded article. The resin composition comprises 100 parts by mass of the sum of 90-100 mass% poly(phenylene ether) resin (a) and 0-10 mass% styrene-based resin (b), 15-20 parts by mass of a flame retardant (c), 1.5-4.0 parts by mass of a phosphorous acid ester (d), and 10-100 parts by mass of an inorganic filler (e), wherein the sum of the poly(phenylene ether) resin (a) and the styrene-based resin (b) accounts for 90 mass% or more of all resin components contained in the resin composition.

IPC Classes  ?

• C08L 71/12 - Polyphenylene oxides
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 5/49 - Phosphorus-containing compounds
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08L 25/04 - Homopolymers or copolymers of styrene

Abstract

Provided is a resin composition including: 5.0-20.0 parts by mass, relative to 100 parts by mass of a polycarbonate resin (A), of particles (B) having titanium oxide as a main ingredient; a polyolefin wax (C); and a metal salt of an aromatic sulfonic acid (D). If the polyolefin wax (C) is a polyolefin wax (C-1) having an acid value of less than 0.5 mgKOH/g, the content of the polyolefin wax (C-1) is 0.001-1.5 parts by mass, and the content of the metal salt of the aromatic sulfonic acid (D) is 0.01-1.5 parts by mass, and if the polyolefin wax (C) is a polyolefin wax (C-2) having an acid value of 0.5-150 mgKOH/g, the content of the polyolefin wax (C-2) is 0.001-1.5 parts by mass, and 0.2-1.5 parts by mass of the alkali metal salt of the aromatic sulfonic acid (D) are included. Further provided are a pellet, and a molded article.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
• C08L 23/26 - 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

Abstract

The present invention addresses the problem of providing a novel impact modifier for a polyacetal resin, capable of providing a polyacetal resin composition having low VOC emission. The modifier for a polyacetal resin contains a rubber-containing graft copolymer (A) having a specific configuration and a polymer compound (B) having a glycidyl group, the content of the element chlorine and the content of the element potassium in the modifier are within a specific range, and the pH of a mixture of the modifier and pure water is within a specific range.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• C08F 265/06 - Polymerisation of acrylate or methacrylate esters on to polymers thereof
• C08J 3/16 - Powdering or granulating by coagulating dispersions
• 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

Provided are a polycarbonate resin composition having a low relative permittivity and a low dielectric loss tangent and excellent in terms of heat resistance, impact resistance, toughness, and rigidity and a member for an antenna. The polycarbonate resin composition comprises 100 parts by mass of a polycarbonate resin (A), 30-120 parts by mass of a polystyrene resin (B), and 3-50 parts by mass of an elastomer (C) and is characterized in that the ratio of the melt viscosity at 260°C and 1,216 sec-1 of the polycarbonate resin (A) to that of the polystyrene resin (B), ƞA/ƞB, is in the range of 4.5-12.5.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 25/04 - Homopolymers or copolymers of styrene
• 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
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome

Abstract

A polycarbonate resin composition characterized by containing, per 100 parts by mass of a polycarbonate resin (A), 0.001-0.3 parts by mass of a specific triaryl phosphate (B) represented by a specific formula (1) and 0.0012-0.12 parts by mass of a compound (C) having a phenol structure, and characterized in that the compound (C) having a phenol structure contains a specific amount of at least one selected from 2,4-di-tert-butylphenol, 2,2-bis(4-hydroxyphenyl)propane, cumyl phenol, and 4-tert-butylphenol.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/13 - PhenolsPhenolates
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 71/02 - Polyalkylene oxides

Abstract

Provided are: a resin composition that generates a small amount of gas when treated with heat and that has a high weld strength; and a shaped article formed from the resin composition. The resin composition contains a polybutylene terephthalate resin and a polystyrene-based resin having a weight‐average molecular weight (Mw) of 2.00×105 or more and a molecular weight distribution (Mw/Mn) of 3.20 or more. The polystyrene-based resin includes elemental iron at a proportion of 0.1-160.0 ppm by mass relative to 100 parts by mass of the polystyrene-based resin.

IPC Classes  ?

• C08L 25/04 - Homopolymers or copolymers of styrene
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Tc1Tc1Tc1-2nd) when raising the temperature in the second cycle, is less than 3 J/g.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 7/04 - Fibres or whiskers inorganic

Abstract

Tc1Tc1Tc1-2nd) is less than 3 J/g when the procedure is carried out. The content of the inorganic filler in the resin composition is 40 mass% or more.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/04 - Carbon
• C08K 7/04 - Fibres or whiskers inorganic

Abstract

Provided are: a novel resin composition comprising a poly(ethylene terephthalate) resin and a poly(butylene terephthalate) resin; and a resin composition, a molded article, a composite, and a metal/resin composite which have been formed from the resin composition. The novel resin composition contains an inorganic filler with respect to 100 parts by mass of the sum of the poly(butylene terephthalate) resin and the poly(ethylene terephthalate) resin, and the mass ratio of the poly(butylene terephthalate) resin to the poly(ethylene terephthalate) resin, in 100 parts by mass of the sum of the poly(butylene terephthalate) resin and the poly(ethylene terephthalate) resin, is 10/90 to 90/10, the poly(ethylene terephthalate) resin containing iron element in an amount of 1.0-100 μg/g.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/04 - Carbon
• C08K 3/08 - Metals
• C08K 7/04 - Fibres or whiskers inorganic
• C08K 7/18 - Solid spheres inorganic

Abstract

The problem to be solved by the present invention is to provide: a multi-layered body having high bending strength and excellent processability; and a method for producing a multi-layered body.　The multi-layered body according to the present invention comprises a metal plate (1) and a prepreg (2) that directly or indirectly comes into contact with the metal plate (1) in the direction of the surface of the metal plate (1), in which, in the prepreg (2), continuous reinforcing fibers drawn in one direction are impregnated with a polyamide resin and the continuous reinforcing fibers are contained in an amount of 5 to 300 parts by mass relative to 100 parts by mass of the polyamide resin, and in which the tensile strength of the metal plate is 300 MPa to 1400 MPa inclusive when measured in accordance with JIS Z2241.

IPC Classes  ?

• B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
• B32B 15/088 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyamides

Abstract

This resin composition obtained using a crystalline thermoplastic resin and regenerated carbon fibers, ensures sufficient mechanical strength and exhibits excellent productivity and flame resistance. A molded article and pellets formed from the resin composition contain 100 parts by mass of the provided thermoplastic resin, 5-50 parts by mass of regenerated carbon fibers, and 5-60 parts by mass of flame retardant. The regenerated carbon fibers are a baked product of a composite material comprising resin and carbon fibers, and contain a resin-derived residue that comprises at least 10 mass% of the regenerated fibers.

IPC Classes  ?

• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08K 3/11 - Compounds containing metals of Groups 4 to 10 or of Groups 14 to 16 of the Periodic Table
• C08K 5/1515 - Three-membered rings
• C08K 7/06 - Elements
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a method for producing flame retardant polycarbonate resin composition pellets using a twin screw extruder, the flame retardant polycarbonate resin composition pellets containing: 30-85 mass% of resin pellets (A) in which a polycarbonate resin having a Mw/Mn ratio of 2.7-3.4 is contained at a quantity of more than 40 mass% in the pellets; not less than 5 mass% and less than 25 mass% of a phosphorus-based flame retardant (B); 0.1-1.0 mass% of polytetrafluoroethylene (C); 0-50 mass% of polycarbonate resin flakes (D); 0-30 mass% of a styrene-based copolymer resin (E); and 0-15 mass% of another additive (F) other than components (B) and (C). In the production method, the components (A) to (F) are kneaded using the twin screw extruder having a screw configuration with a kneading unit that is obtained by combining two or more kinds selected from an R kneading disc, an N kneading disc, an L kneading disc, an L screw, a sealing ring, a mixing screw and a rotor screw. The components are kneaded at a screw rotation speed of 370-830 rpm, with a torque density applied to a screw shaft being 6.0-16.0 Nm/cm3, extruded as a strand from the extruder and then cut.

IPC Classes  ?

• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• B29B 9/12 - Making granules characterised by structure or composition
• C08J 3/12 - Powdering or granulating
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• 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 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
• 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
• B29C 48/505 - Screws

Abstract

Provided are: pellets that make it possible to provide a molded product that contains a polycarbonate resin and recycled carbon fibers, that has a mechanical strength close to the case in which the same quantity of virgin carbon fibers are contained therein, and that exhibits excellent flame resistance; a molded product; and a pellet manufacturing method. The pellets are formed from a composition containing 5-65 parts by mass of the recycled carbon fibers, which are the heated product of a carbon fiber-reinforced resin, and 0.05-25 parts by mass of a non-metallic salt-based flame retardant per 100 parts by mass of the polycarbonate resin, which has a terminal hydroxyl group content of 150-800 ppm.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• B29C 70/40 - Shaping or impregnating by compression
• C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
• C08K 3/04 - Carbon
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08K 7/06 - Elements

Abstract

Provided are: pellets capable of providing a molded article which comprises a polycarbonate resin and recycled carbon fibers and which has mechanical strength close to that of molded articles containing virgin carbon fibers in the same amount and has excellent flame retardancy; the molded article; and a method for producing the pellets. The pellets are ones formed from a composition comprising 100 parts by mass of a polycarbonate resin, 5-65 parts by mass of recycled carbon fibers obtained by heating a carbon-fiber-reinforced resin, and 0.01-0.30 parts by mass of a metal salt flame retardant.

IPC Classes  ?

• C08J 3/12 - Powdering or granulating
• B29B 9/14 - Making granules characterised by structure or composition fibre-reinforced
• C08K 3/04 - Carbon
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08K 7/06 - Elements
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

A method for producing a polycarbonate resin composition pellet with a twin screw extruder, the polycarbonate resin composition pellet has 30 to 95 mass % of a resin pellet (A) containing more than 40 mass % of a polycarbonate resin in the pellet; not less than 5 mass % and less than 40 mass % of a phosphate ester flame retardant (B) that is a liquid at room temperature; 0 to 50 mass % of polycarbonate resin flake (C); 0 to 30 mass % of an ABS resin (D); and 0 to 15 mass % of an additive (E) other than component (B). The method includes feeding components (A), (C), (D) and (E) in a twin screw extruder and kneading with a first kneading zone; feeding component (B) to a downstream part in the first kneading zone and kneading with a second kneading zone; and decompressing a vent in the downstream part in the second kneading zone.

IPC Classes  ?

• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• B29C 48/405 - Intermeshing co-rotating screws
• B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
• C08G 64/00 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

This polycarbonate resin composition contains 0.001-0.3 parts by mass of an aryl phosphine oxide (B) and 0.0012-0.03 parts by mass of a compound (C1) having a phenolic structure, with respect to 100 parts by mass of a polycarbonate resin (A), wherein the compound (C1) having a phenolic structure is at least one selected from bisphenol A, 4-tert-butylphenol, cumylphenol, and phenol, and the content of the compound (C1) having a phenolic structure is 0.002-0.03 parts by mass in the case of bisphenol A, 0.0012-0.01 parts by mass in the case of 4-tert-butylphenol, 0.0012-0.01 parts by mass in the case of cumylphenol, and 0.0012-0.01 parts by mass in the case of phenol.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 5/13 - PhenolsPhenolates
• C08K 5/1515 - Three-membered rings
• C08K 5/50 - Phosphorus bound to carbon only
• C08K 5/51 - Phosphorus bound to oxygen
• C08K 5/53 - Phosphorus bound to oxygen bound to oxygen and to carbon only

Abstract

The present invention provides: thermoplastic resin composition pellets which are characterized by containing 30 to 100 parts by mass of (A) a polybutylene terephthalate resin that has an intrinsic viscosity of 0.3 to 1.3 dl/g and 0 to 70 parts by mass of (B) a polystyrene or a rubber-reinforced polystyrene resin, and also containing 0.5 to 20 parts by mass of (C) thermally expandable microspherical particles that have a maximum expansion temperature within the range of 250 to 320°C and an average particle diameter within the range of 10 to 50 µm relative to a total of 100 parts by mass of the components (A) and (B); and a method for producing the thermoplastic resin composition pellets.

IPC Classes  ?

• 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
• C08J 3/215 - Compounding polymers with additives, e.g. colouring in the presence of a liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 7/22 - Expanded, porous or hollow particles
• C08L 25/04 - Homopolymers or copolymers of styrene
• C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Provided are: a resin composition from which a molded article having excellent slidability is obtained and which has excellent moldability; a molded article; and a method for producing a resin composition. This resin composition comprises, with respect to 100 parts by mass of (A) a polyacetal resin, 0.1-30.0 parts by mass of (B) an olefin polymer, 0.1-30.0 parts by mass of (C) a silicone oil having a kinematic viscosity of 1,000-55,000 cSt at 25°C, and 0.1-15.0 parts by mass of (D) a hydrocarbon wax, wherein (B)/(C), which is the mass ratio of the (B) olefin polymer to the (C) silicone oil, is at most 2.00.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• C08J 3/215 - Compounding polymers with additives, e.g. colouring in the presence of a liquid phase the polymer being premixed with a liquid phase at least one additive being also premixed with a liquid phase
• C08L 23/00 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers
• C08L 83/04 - Polysiloxanes
• C08L 91/06 - Waxes

Abstract

Provided are: a resin composition having excellent fire-resistance and moldability; and a molded article formed from the resin composition. This resin composition contains a polycarbonate resin, and an alkali metal salt and/or an alkaline earth metal salt of a fluoromethane sulfonyl imide having a zinc content of 0.1 mass ppm or more.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/08 - Metals
• C08K 5/43 - Compounds containing sulfur bound to nitrogen

Abstract

Provided is a resin composition capable of providing a molded article having excellent adhesiveness with another member and being molded from a resin composition containing a crystalline thermoplastic resin. Also provided is a molded article molded from the resin composition. This resin composition contains a crystalline thermoplastic resin (A) and an acid-modified polymer (B), wherein: the content of the crystalline thermoplastic resin (A) in the resin composition is more than the content of the acid-modified resin (B) in the resin composition; and the content of acid in the resin composition is 0.5 mass% or more.

IPC Classes  ?

• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties

Abstract

A resin composition having low warpage and excellent heat resistance, characterized by: containing, based on 100 total mass parts of (A)-(C), 25-48 mass parts of a polyphenylene sulfide resin (A) having an MVR measured at 295°C under 1.00 kgf load of 60-500 cm3/10 min, an amorphous rubber-reinforced polystyrene or a polystyrene (B) having an MVR measured at 200°C under 5 kgf load of 0.3-16 cm3/10 min and/or a polyphenylene ether resin (C); the total content of (B) and (C) being 52-75 mass parts; and also containing 5-150 mass parts of a fibrous filler (D).

IPC Classes  ?

• C08L 81/02 - PolythioethersPolythioether-ethers
• C08G 59/00 - Polycondensates containing more than one epoxy group per moleculeMacromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compoundsMacromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08K 7/02 - Fibres or whiskers
• C08L 25/06 - Polystyrene
• C08L 25/10 - Copolymers of styrene with conjugated dienes
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 71/12 - Polyphenylene oxides
• H01R 13/46 - BasesCases

Abstract

Provided are: a structure obtained by joining two resin members, wherein at least one among the resin members is a resin member having a high electromagnetic wave absorption rate; a structure manufacturing method; and a millimeter wave radar module. This structure has a first member formed of a thermoplastic resin composition A and a second member formed of a thermoplastic resin composition B, wherein: the first member and the second member are at least partially joined; the transmittance of a test piece, obtained by molding the thermoplastic resin composition A so as to have a thickness of 2 mm, at a frequency of 76.5 GHz is at least 70.0%; the transmittance of a test piece, obtained by molding the thermoplastic resin composition B so as to have a thickness of 2 mm, at a frequency of 76.5 GHz is less than 50.0%; and the absorption rate of the test piece, obtained by molding the thermoplastic resin composition B so as to have a thickness of 2 mm, at a frequency of 76.5 GHz is at least 40.0%.

IPC Classes  ?

• B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
• B29C 65/16 - Laser beam
• B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
• B29C 65/56 - Joining of preformed partsApparatus therefor using mechanical means
• B29C 65/70 - Joining of preformed partsApparatus therefor by moulding
• B29C 65/82 - Testing the joint
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome
• H01Q 17/00 - Devices for absorbing waves radiated from an antenna Combinations of such devices with active antenna elements or systems
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• B32B 7/025 - Electric or magnetic properties

Abstract

A polyphenylene ether resin composition according to an embodiment of the present invention contains 2-20 parts by mass of a polypropylene homopolymer (c) and 1-25 parts by mass of an inorganic filling material (d) with respect to 100 parts by mass of a polyphenylene ether-containing resin (A) that contains a polyphenylene ether resin (a), or contains the polyphenylene ether resin (a) and a styrene resin (b).

IPC Classes  ?

• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08L 23/12 - Polypropene
• C08L 25/04 - Homopolymers or copolymers of styrene
• C08L 71/12 - Polyphenylene oxides
• C08K 3/013 - Fillers, pigments or reinforcing additives

Abstract

To provide a resin composition capable of effectively suppressing the mechanical strength from degrading even if kept under high temperatures and high humidity, and of suppressing color transfer, as well as a molded article with use of the resin composition, and a method for producing the resin composition. The resin composition contains a polyamide resin and cerium oxide, with a lanthanum content in the resin composition of more than 0 ppm by mass and 40 ppm by mass or less.

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A powder that is for powder lamination molding and that contains a resin composition, wherein the resin composition contains an aromatic polyester-based resin, and, when a brittle temperature test prescribed in JIS K7216 is performed on the resin composition at a retention time of 3 minutes at a temperature interval of 5°C, a value of the 50%-impact brittle temperature of the resin composition measured in a range from -70°C to 25°C exists in a range of -45°C to 10°C.

IPC Classes  ?

• B29D 29/10 - Driving belts having wedge-shaped cross-section
• B33Y 80/00 - Products made by additive manufacturing
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B33Y 70/00 - Materials specially adapted for additive manufacturing

Abstract

Provided are a resin composition and a molded body that can be used as a control body for submillimeter waves. Provided is a resin composition that includes a thermoplastic resin and a conductive substance. When the resin composition is molded to 100 mm×100 mm×thickness t mm (the value of t being a value at which the concentration C (mass%) of the conductive substance in the resin composition×the thickness t (mm) is at least 1.2), the Δ absorption, i.e., the difference between the maximum value and the minimum value of the absorption, for frequencies of 28.0–40.0 GHz is no more than 20.0%, and the absorption at a frequency of 28.0 GHz is at least 35.0%.

IPC Classes  ?

• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 3/04 - Carbon
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

Abstract

Provided are: a resin composition capable of providing molded objects having toughness that enables the molded objects to sufficiently withstand heat and load; and a molded object. The resin composition comprises 50.0-80.0 parts by mass of (a) a poly(phenylene ether) resin, 50.0-20.0 parts by mass of (b) a polypropylene resin, the sum of (a) and (b) being 100 parts by mass, and 5.0-30.0 parts by mass of (c) a block copolymer, wherein the block copolymer (c) is a hydrogenated copolymer comprising a vinylaromatic compound block (c1) and an isoprene polymer block (c2), the content of vinylaromatic compound units in the block copolymer (c) being 50 mass% or higher but less than 80 mass%.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 25/06 - Polystyrene
• 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 71/12 - Polyphenylene oxides
• H01M 50/193 - Organic material

Abstract

Provided are a gasket for nonaqueous-electrolytic-solution batteries which has high heat resistance although including a polypropylene resin, is inexpensive, and is obtained with satisfactory moldability, and a method for producing the gasket.　The gasket comprises, as a main component, a resin obtained by alloying polypropylene and poly(phenylene ether) and is shaped by injection-molding. The method for producing the gasket comprises kneading beforehand polypropylene, poly(phenylene ether), a molding aid, etc. with a twin-screw kneader/extruder, cooling and solidifying a resin composition ejected from the twin-screw kneader/extruder, and injection-molding the resin composition.

IPC Classes  ?

• C08L 23/12 - Polypropene
• C08L 25/06 - Polystyrene
• 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 71/12 - Polyphenylene oxides
• H01M 50/193 - Organic material

Abstract

Provided are: a resin composition which exhibits excellent laser transmission properties and laser printing properties and which is controlled in terms of transmittance non-uniformity; a molded article, a laser-transmitting resin member, a kit, and a laser-welded article that are obtained using the resin composition; a method for producing a laser-welded article; and a laser marking agent for a resin composition for laser welding. This resin composition for laser marking and laser welding contains 100 parts by mass of a thermoplastic resin, 0.002-10.000 parts by mass of a bismuth compound and a total of 0.1-5.0 parts by mass of two or more types of non-black organic pigment.

IPC Classes  ?

• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B29C 65/16 - Laser beam
• C08K 3/22 - OxidesHydroxides of metals

Abstract

This polycarbonate resin composition has a fine hue and excellent transparency and causes extremely less mold contamination and gas generation when being molded. The polycarbonate resin composition is characterized by containing, with respect to 100 parts by mass of a polycarbonate resin (A), 0.01-4 parts by mass of a polyether compound (B) represented by general formula (I).　(I): R1O-(A1mm-X-(A2nn-R2(In the formula, A1represents a linear or branched hydrocarbon group having 2-6 carbon atoms, A2represents a linear or branched hydrocarbon group that has 7-20 carbon atoms and that is optionally substituted by an allyloxy group or an alkoxy group, R1and R2each independently represent a hydrogen atom or a hydrocarbon group having 1-30 carbon atoms, and X represents a single bond or a divalent organic group. m represents an integer of 0 or 1 or more, n represents an integer of 1 or more, and, if m or n equals 2 or more, A1and A2 may be the same hydrocarbon group or may be different hydrocarbon groups.)

IPC Classes  ?

• C08K 5/04 - Oxygen-containing compounds
• C08K 5/15 - Heterocyclic compounds having oxygen in the ring
• C08K 5/1515 - Three-membered rings
• C08K 5/1525 - Four-membered rings
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08K 5/53 - Phosphorus bound to oxygen bound to oxygen and to carbon only
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 71/02 - Polyalkylene oxides

Abstract

Provided are: a resin composition that has exceptional hydrolysis resistance and that can be welded and marked by a laser; and a molded article, a laser-transmitting resin member, a kit, a laser welded article, a method for producing a laser welded article, a method for suppressing any decrease in the light transmittance of a resin composition, and an agent for suppressing any decrease in light transmittance in which the resin composition is used. The present invention is a resin composition for laser marking and laser welding, the resin composition including 100 parts by mass of a thermoplastic resin, 0.002-10.000 parts by mass of a bismuth compound, 0.1-5.0 parts by mass of an organic dye, and 0.1-18 parts by mass of an aromatic-ring-containing compound that includes a benzene ring and/or benzo fused ring.

IPC Classes  ?

• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• B23K 26/00 - Working by laser beam, e.g. welding, cutting or boring
• B29C 65/16 - Laser beam
• C08K 3/22 - OxidesHydroxides of metals

Abstract

Provided are a resin composition that has a high electromagnetic wave absorption rate, a molded body, an electromagnetic wave absorber, and a method for manufacturing the resin composition. The resin composition contains a thermoplastic resin and carbon nanotubes, and has a dielectric constant of at least 4.50 at a frequency of 76.5 Ghz when molded to a thickness of 2 mm.

IPC Classes  ?

• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08L 25/04 - Homopolymers or copolymers of styrene
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08J 5/18 - Manufacture of films or sheets
• C08K 3/04 - Carbon

Abstract

Provided are a resin composition that has a high electromagnetic wave absorption rate, a molded body, and an electromagnetic wave absorber.　The resin composition contains a thermoplastic resin and a conductive substance, and when the resin composition is cut into a test piece having a thickness of 2mm and the cross-section thereof is observed with a digital microscope, the area ratio of aggregates derived from the conductive substance and having a circle equivalent diameter of at least 30 μm is at most 0.80%.

IPC Classes  ?

• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08K 7/06 - Elements
• C08L 25/04 - Homopolymers or copolymers of styrene
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08J 5/18 - Manufacture of films or sheets
• H01B 1/24 - Conductive material dispersed in non-conductive organic material the conductive material comprising carbon-silicon compounds, carbon, or silicon
• H01B 5/16 - Non-insulated conductors or conductive bodies characterised by their form comprising conductive material in insulating or poorly conductive material, e.g. conductive rubber
• C08K 3/01 - Use of inorganic substances as compounding ingredients characterised by their specific function
• C08K 3/04 - Carbon
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

Abstract

Provided is a method for producing, via a twin screw extruder, a fiber-reinforced polybutylene terephthalate resin composition comprising (A) 40-90 mass% polybutylene terephthalate resin, (B) 10-60 mass% reinforcing fibers, and (C) 0-35 mass% of other polymers or additives, said method being characterized by comprising a first step for using, as a raw material for (A), polybutylene terephthalate resin pellets having an average weight of 16-29 mg and kneading (A) and (C) with a first kneading part, a second step for adding (B) at a part downstream of the first kneading part and performing kneading with a second kneading part; and a third step for reducing pressure of a vent at a part downstream of the second kneading part and performing devolatilization, wherein the first kneading part comprises a configuration having a length of 5.0-9.0 D and comprising a specific screw configuration, the second kneading part comprises a specific screw configuration, and the production is carried out with a screw shaft torque density of 11.5-19 Nm/cm3.

IPC Classes  ?

• B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
• B29B 7/72 - Measuring, controlling or regulating
• B29B 7/90 - Fillers or reinforcements
• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• C08J 3/20 - Compounding polymers with additives, e.g. colouring

Abstract

Provided are a resin composition and molded article having excellent slidability, high tensile fracture nominal strain, and excellent heat aging resistance. This resin composition includes, with respect to 100 parts by mass of polyacetal resin (A), 0.1-50 parts by mass of an acid-modified olefin polymer (B) having an acid value of 1.0-30.0 mgKOH/g, and 0.01-5 parts by mass of a compound (C) containing two or more primary amino groups and/or secondary amino groups in total, said compound being selected from a dihydrazone compound, dihydrazide compound, urea compound, and melamine compounds. The ratio (B)/(C) of the acid-modified olefin polymer (B) to the amino group-containing compound (C) is 20-200.

IPC Classes  ?

• F16C 33/20 - Sliding surface consisting mainly of plastics
• C08K 5/21 - UreaDerivatives thereof, e.g. biuret
• C08K 5/24 - Derivatives of hydrazine
• C08K 5/30 - HydrazonesSemicarbazones
• C08K 5/3492 - Triazines
• C08L 23/26 - 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
• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals

Abstract

The present invention addresses the problem of providing: a PC resin composition which has excellent impact resistance, transparency and weather resistance, and from which a PC resin alloy that can be used in a coating-less manner can be produced; and a molded product produced from the PC resin composition. This polycarbonate resin composition contains a polycarbonate resin (A) and a styrene-based resin (B) containing no butadiene. In the polycarbonate resin composition, the content of the styrene-based resin (B) containing no butadiene is 20 parts by mass to 70 parts by mass with respect to 100 parts by mass of the polycarbonate resin (A), and the following conditions (1) to (3) are satisfied: (1) the notched Charpy value is 70 kJ/m2 or higher as measured in accordance with the ISO179 standard using a 4.0 mm-thick test piece prepared from the polycarbonate resin composition based on the same standard; (2) the critical normal force is 8.0 N or higher as measured in accordance with the ISO19252 standard using a test piece prepared from the polycarbonate resin composition based on the ISO3167 (Type A1) standard; and (3) the L* value is 40 or less as measured in accordance with the JIS K7105-1 standard using a 4.0 mm-thick test piece prepared from the polycarbonate based on the ISO tensile test standard.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

A polycarbonate resin composition, which has favorable balance, excellent chemical resistance, flame retardancy, impact resistance, heat resistance and moist heat resistance. A polycarbonate resin composition, including 1 to 60 parts by mass of a liquid crystal polyester (B) containing a repeating unit represented by specific formulae (I) to (IV), 0.01 to 0.5 parts by mass of an organic metal salt flame retardant (C) and 0.05 to 1 parts by mass of a fluorinated resin (D) relative to 100 parts by mass of a polycarbonate resin (A), and having a notched Charpy impact strength of 15.5 kJ/m2 or more, as measured at 23° C. in accordance with ISO 179 by using an ISO dumbbell having a thickness of 3 mm.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Provided is a birefringence reducer that is an additive for reducing birefringence of resin, and comprises an organosiloxane compound having an aromatic group.

IPC Classes  ?

• 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
• C08K 5/5419 - Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• G02B 3/00 - Simple or compound lenses

Abstract

Provided is a resin composition obtained using a thermoplastic resin and regenerated carbon fibers, the resin composition exhibiting improved mechanical strength and excellent productivity. The present invention also provides: a pellet and molded article formed from the resin composition; and a method for producing the resin composition. Relative to 100 parts by mass of a thermoplastic resin, this resin composition contains 10-70 parts by mass of regenerated carbon fibers and 0.1-15 parts by mass of a functional group-containing compound. The regenerated carbon fibers: are obtained by firing a composite material of an epoxy resin and carbon fibers; and contain 5 mass% or more of a residue derived from the epoxy resin. When the resin composition is formed into an ISO multipurpose test piece having a thickness of 4 mm, the maximum bending strength thereof is 130 MPa or more.

IPC Classes  ?

• C08K 7/04 - Fibres or whiskers inorganic
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

The present invention relates to a resin metal composite body which has a configuration wherein a metal member (X) and a resin member (Y) that is formed of a thermoplastic resin composition (A) that is mainly composed of a thermoplastic resin are bonded to each other, and which has excellent bonding strength. More specifically, the present invention provides a resin metal composite body which has a configuration wherein a surface of the metal member (X), said surface having recesses and projections, and the resin member (Y) are bonded to each other, and which is characterized in that: the thermoplastic resin composition (A) contains a thermoplastic resin and a fibrous reinforcing filler; and the relational expression (1) described below is satisfied.　(1): Ra/(Fd × Wr) ≥ 0.5 (In the relational expression (1), Ra represents the arithmetic mean roughness (μm) of the surface of the metal member (X) as determined in accordance with JIS B 0601 (2001); Fd represents the average fiber diameter (μm) of the fibrous reinforcing filler; and Wr represents the value of (amount of fibrous reinforcing filler (parts by mass) in thermoplastic resin composition (A))/(total amount of all constituent components (parts by mass) in thermoplastic resin composition (A)).)

IPC Classes  ?

• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 70/12 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of short length, e.g. in the form of a mat
• B32B 15/09 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising polyesters
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
• B29K 67/00 - Use of polyesters as moulding material
• B29K 705/00 - Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts

Abstract

Provided are: a resin composition that can be thinly molded and that is superior in terms of light blocking properties; and a molded body employing the resin composition. The present invention provides a resin composition: that contains carbon black and a dispersant at, in total, a proportion greater than 2.0 parts by mass and equal to or less than 10.0 parts by mass with respect to 100 parts by mass of a polyacetal resin; and in which the proportion of the carbon black with respect to the total quantity of the carbon black and the dispersant is greater than 60 mass% and less than 100 mass%, wherein the melt volume rate of the resin composition measured under the conditions of 190°C and a load of 2.16 kg-weight is greater than 50 cm3/10 min and less than 100 cm3/10 min.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• C08K 3/04 - Carbon

Abstract

Provided is a resin composition that is used as a laser-transmitting resin member during laser welding and that is capable of laser marking. Also provided are a molded article using the aforementioned resin composition, use of a resin composition, a kit, a laser welded article, and a method for manufacturing a laser welded article. The present invention provides a a resin composition that is used as a laser-transmitting resin member during laser welding and that is capable of laser marking, said resin composition containing 5-100 parts by mass of a butadiene rubber-containing polystyrene and 0.01-5 parts by mass of an infrared transmitting colorant with respect to 100 parts by mass of a thermoplastic polyester resin.

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 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• B29C 65/16 - Laser beam

Abstract

Provided are: a resin composition having excellent transparency and mechanical strength; a molded article; and a molded article with a hard coat layer. The resin composition includes 5-100 parts by mass of a glass filler with respect to 100 parts by mass of a resin component. The resin component includes: 40-85 parts by mass of a polycarbonate resin that contains a structural unit represented by formula (1); and 15-60 parts by mass of a thermoplastic resin other than the polycarbonate resin. The absolute value of the difference between the refractive index of the resin component and the refractive index of the glass filler is 0.0042 or less. The dynamic friction coefficient, according to ISO 19252, of the resin component is 0.40 or less. In formula (1), R1 represents a methyl group.

IPC Classes  ?

• C08K 7/14 - Glass
• C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

To provide a resin composition that contains a glass fiber, but having reduced warpage of a formed article and high transmittance; as well as a formed article, a kit, and a method for manufacturing a formed article using the same. The polyamide resin composition contains a polyamide resin, a glass fiber, a light-transmitting dye, and muscovite.

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

Provided are: a resin composition in which the differences in laser transmittance of a molded article caused by different die temperatures during molding of the resin composition are small; a kit; a molded article; and a molded article manufacturing method. This resin composition includes a polyamide resin, a crystal nucleating agent, and a light-transmitting pigment, and the content of the crystal nucleating agent is more than 5 parts by mass and less than or equal to 20 parts by mass with respect to 100 parts by mass of the polyamide resin.

IPC Classes  ?

• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids

Abstract

5050 in the range of 20-80 μm, and when the powder is treated for 1 hour at a temperature lower, by 25℃, than a melting point of the polybutylene terephthalate-based resin measured using differential scanning calorimetry, the shear stress of the powder is 0.30 N/cm2 or less.

IPC Classes  ?

• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• C08G 63/183 - Terephthalic acids
• B33Y 70/00 - Materials specially adapted for additive manufacturing

Abstract

A thermoplastic polyester resin composition characterized by comprising 100 parts by mass of a thermoplastic polyester resin (A) having an intrinsic viscosity of 0.60 dl/g or higher but lower than 0.85 dl/g, 5-30 parts by mass of a maleic-anhydride-modified olefin polymer (B), 0.2-4.5 parts by mass of a hydrolysis inhibitor (C), and 10-80 parts by mass of a reinforcing filler (D) and by either containing no thermoplastic resin (E) which has a water absorption, as determined by the ISO 62A method, of 0.28 mass% or greater or containing the thermoplastic resin (E) in an amount less than 9 parts by mass per 100 parts by mass of the thermoplastic polyester resin (A).

IPC Classes  ?

• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08K 7/14 - Glass
• C08L 23/26 - 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
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/04 - Carbon

Abstract

Provided are: a resin composition which keeps the dielectric loss tangent thereof at a low level and has a high dielectric constant and excellent mechanical strength; and methods respectively for manufacturing a molded article and a plated molded article. The resin composition comprises 100 parts by mass of a thermoplastic resin, 0.3 to 10 parts by mass of an acid-modified polymer, 5 to 150 parts by mass of a laser direct structuring additive, and 10 to 150 parts by mass of reinforcing fibers, in which the laser direct structuring additive comprises at least one component selected from calcium copper titanate and an electrically conductive oxide that has a resistivity of 5×103 Ω·cm or less and is a compound containing a metal belonging to Group n (wherein n represents an integer of 3 to 16) on the periodic table and a metal belonging to Group n+1 on the periodic table.

IPC Classes  ?

• C08K 7/02 - Fibres or whiskers
• C08K 7/14 - Glass
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 23/26 - 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
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08K 3/105 - Compounds containing metals of Groups 1 to 3 or of Groups 11 to 13 of the Periodic Table
• C08K 3/11 - Compounds containing metals of Groups 4 to 10 or of Groups 14 to 16 of the Periodic Table
• C08K 3/18 - Oxygen-containing compounds, e.g. metal carbonyls
• C23C 18/20 - Pretreatment of the material to be coated of organic surfaces, e.g. resins
• C23C 18/31 - Coating with metals
• H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support
• H05K 1/03 - Use of materials for the substrate
• H05K 3/00 - Apparatus or processes for manufacturing printed circuits
• H05K 3/18 - Apparatus or processes for manufacturing printed circuits in which conductive material is applied to the insulating support in such a manner as to form the desired conductive pattern using precipitation techniques to apply the conductive material

Abstract

Provided is powder for a powder laminate molding method, the powder containing polybutylene terephthalate, satisfying formula (1) in the following chargeability test, having high coating and molding performance, and being capable of obtaining a molded article of a good appearance, a high strength, etc. (1): |Voltage after drum rotation - initial voltage|≤100. 50-150 g of the powder is measured, and the initial voltage and voltage after drum rotation of the powder are measured by a rotary drum powder fluidity measurement device. Conditions for the drum rotation include rotation at 1 rpm for 2 minutes, and the unit of the voltages is V.

IPC Classes  ?

• B33Y 10/00 - Processes of additive manufacturing
• B33Y 80/00 - Products made by additive manufacturing
• B29C 64/153 - Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
• B29C 64/165 - Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
• B33Y 70/10 - Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials

Abstract

Provided is a method for producing a polycarbonate resin composition pellet with a twin-screw extruder, the polycarbonate resin composition pellet comprising: 30-95 mass% of (A) a resin pellet including more than 40 mass% of a polycarbonate resin in the pellet; 5-40 (exclusive of 40) mass% (B) a phosphate ester flame retardant that is liquid at room temperature; 0-50 mass% of (C) polycarbonate resin flakes; 0-30 mass% of (D) an ABS resin; and 0-15 mass% of (E) an additive other than (B). The method is characterized by including a first step for putting (A), (C), (D), and (E) into a twin-screw extruder and kneading with a first kneading unit, a second step for adding (B) to a downstream part in the first kneading unit and kneading with a second kneading unit, and a third step for decompressing a vent in the downstream part in the second kneading unit to devolatilize and extrude, wherein the first kneading unit has a specific screw configuration in which the length thereof is 2.4-6.0 D, and the second kneading unit has a specific screw configuration in which the length thereof is 1.3-4.0 D.

IPC Classes  ?

• B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
• B29B 7/94 - Liquid charges

Abstract

Provided are: a resin composition having a high electromagnetic wave absorption rate and low electromagnetic wave transmittance and reflectance, and exhibiting a small change in reflectance caused by a change in electromagnetic wave frequency; a molded body; and an electromagnetic wave absorber. The resin composition contains 0.1-10.0 parts by mass of carbon nanotubes and 10-100 parts by mass of glass fibers with respect to 100 parts by mass of a thermoplastic resin, wherein the mass ratio of carbon nanotubes to glass fibers (carbon nanotubes/glass fibers) is 0.01-0.30.

IPC Classes  ?

• C08K 5/02 - Halogenated hydrocarbons
• C08K 7/06 - Elements
• C08K 7/14 - Glass
• C08L 23/12 - Polypropene
• C08L 25/06 - Polystyrene
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08K 3/016 - Flame-proofing or flame-retarding additives
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

Abstract

Provided is a resin composition for an electromagnetic wave absorber having a high electromagnetic wave absorption rate as well as low electromagnetic wave transmittance and reflectance rates, wherein the difference in reflectance rates due to different electromagnetic wave frequencies is small, and also provided is an electromagnetic wave absorber. The resin composition contains 0.1-10.0 parts by mass of an electromagnetic wave absorption material per 100 parts by mass of a thermoplastic resin, wherein: the absorption rate determined according to formula (A) at a 76.5 GHz frequency is 40.0-100% when the resin composition is molded so as to be 150 mm × 150 mm × 2 mm thick; the difference between the highest value and the lowest value of the reflectance rate determined according to formula (B) at a frequency range of 70-80 GHz is no more than 20.0% when the resin composition is molded so as to be 150 mm × 150 mm × 2 mm thick; and said resin composition is for an electromagnetic wave absorber.

IPC Classes  ?

• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/016 - Flame-proofing or flame-retarding additives
• C08K 3/04 - Carbon
• C08K 5/00 - Use of organic ingredients
• C08K 7/04 - Fibres or whiskers inorganic
• C08K 7/06 - Elements
• C08K 7/14 - Glass
• C08L 25/04 - Homopolymers or copolymers of styrene
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

Provided are a permeable resin composition for laser welding having exceptional properties such as mechanical strength and low warpage as well as high light transmittance, a kit, a molded article, and a method for producing a molded article. A permeable resin composition for laser welding that includes 10-120 parts by mass of glass flakes having a thickness of 0.1-2 μm per 100 parts by mass of a crystalline thermoplastic resin, and a light-transmitting dye.

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08K 5/00 - Use of organic ingredients
• C08K 7/00 - Use of ingredients characterised by shape
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• B29C 65/16 - Laser beam

Abstract

A phosphorescent polycarbonate resin composition comprising, with respect to 100 parts by mass of a polycarbonate resin (A): 0.8 to 20 parts by mass of a red light-emitting phosphorescent material (B1) as a phosphorescent material (B), wherein an L* value measured in accordance with a following method (X) is 65 or more, A phosphorescent polycarbonate resin composition comprising, with respect to 100 parts by mass of a polycarbonate resin (A): 0.8 to 20 parts by mass of a red light-emitting phosphorescent material (B1) as a phosphorescent material (B), wherein an L* value measured in accordance with a following method (X) is 65 or more, the method (X) including: under conditions of a cylinder temperature of 300° C., a mold temperature of 120° C., and a molding cycle of 45 seconds, measuring, with a color-difference meter, the L* of a 3 mm-thick portion of a specimen (in a form of a three-stage plate having a width of 50 mm, a length of 90 mm, and thicknesses of 1 mm, 2 mm, and 3 mm) obtained by injection molding of the phosphorescent polycarbonate resin composition, under following conditions based on JIS 28722: A phosphorescent polycarbonate resin composition comprising, with respect to 100 parts by mass of a polycarbonate resin (A): 0.8 to 20 parts by mass of a red light-emitting phosphorescent material (B1) as a phosphorescent material (B), wherein an L* value measured in accordance with a following method (X) is 65 or more, the method (X) including: under conditions of a cylinder temperature of 300° C., a mold temperature of 120° C., and a molding cycle of 45 seconds, measuring, with a color-difference meter, the L* of a 3 mm-thick portion of a specimen (in a form of a three-stage plate having a width of 50 mm, a length of 90 mm, and thicknesses of 1 mm, 2 mm, and 3 mm) obtained by injection molding of the phosphorescent polycarbonate resin composition, under following conditions based on JIS 28722: Reflection measurement: D65 light source, 10-degree field of view A phosphorescent polycarbonate resin composition comprising, with respect to 100 parts by mass of a polycarbonate resin (A): 0.8 to 20 parts by mass of a red light-emitting phosphorescent material (B1) as a phosphorescent material (B), wherein an L* value measured in accordance with a following method (X) is 65 or more, the method (X) including: under conditions of a cylinder temperature of 300° C., a mold temperature of 120° C., and a molding cycle of 45 seconds, measuring, with a color-difference meter, the L* of a 3 mm-thick portion of a specimen (in a form of a three-stage plate having a width of 50 mm, a length of 90 mm, and thicknesses of 1 mm, 2 mm, and 3 mm) obtained by injection molding of the phosphorescent polycarbonate resin composition, under following conditions based on JIS 28722: Reflection measurement: D65 light source, 10-degree field of view Measurement port: 30 ϕ A phosphorescent polycarbonate resin composition comprising, with respect to 100 parts by mass of a polycarbonate resin (A): 0.8 to 20 parts by mass of a red light-emitting phosphorescent material (B1) as a phosphorescent material (B), wherein an L* value measured in accordance with a following method (X) is 65 or more, the method (X) including: under conditions of a cylinder temperature of 300° C., a mold temperature of 120° C., and a molding cycle of 45 seconds, measuring, with a color-difference meter, the L* of a 3 mm-thick portion of a specimen (in a form of a three-stage plate having a width of 50 mm, a length of 90 mm, and thicknesses of 1 mm, 2 mm, and 3 mm) obtained by injection molding of the phosphorescent polycarbonate resin composition, under following conditions based on JIS 28722: Reflection measurement: D65 light source, 10-degree field of view Measurement port: 30 ϕ Specimen material holder: White

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C09K 11/77 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing inorganic luminescent materials containing rare earth metals
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3

Abstract

Provided is a light-transmissive resin composition for laser welding with which color migration of a coloring agent to other components is suppressed. Also provided are a kit, a molded product, and a method for producing a molded product. This light-transmissive resin composition for laser welding comprises, per 100 parts by mass of a crystalline thermoplastic resin: 10-120 parts by mass of a reinforcing filler; 0.01-1.0 parts by mass of a light-transmissive dye having a perylene skeleton; and at least one type of compound selected from copper compounds, alkali metal halides, and cerium oxide.

IPC Classes  ?

• C08L 101/00 - Compositions of unspecified macromolecular compounds
• B29C 65/16 - Laser beam
• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 5/00 - Use of organic ingredients
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers

Abstract

The present invention provides: a light-transmitting resin composition for laser welding, which has a low light transmittance in a specific wavelength range, while having a high light transmittance of the light for laser welding; a molded article; a kit; a method for producing a molded article; and an in-vehicle camera. A light-transmitting resin composition for laser welding, which contains, relative to 100 parts by mass of a polyamide resin, from 10 to 120 parts by mass of a reinforcing filler and a light-transmitting dye that has a perylene skeleton, wherein: the polyamide resin is composed of a constituent unit derived from a diamine and a constituent unit derived from a dicarboxylic acid; 70% by mole or more of the constituent unit derived from a diamine is derived from a xylylene diamine; and 70% by mole or more of the constituent unit derived from a dicarboxylic acid is derived from an α, ω-linear aliphatic dicarboxylic acid having from 4 to 8 carbon atoms.

IPC Classes  ?

• C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
• C08K 5/00 - Use of organic ingredients
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• B29C 65/16 - Laser beam
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/16 - Halogen-containing compounds
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A composition is provided which contains a polycarbonate resin and recycled carbon fibers and which has mechanical strength as close as possible to the case of adding virgin carbon fibers; a pellet, a molded product and a composition production method are also provided. This composition contains 5-65 parts by mass of the recycled carbon fibers, which are the heated product of a carbon fiber reinforced resin, per 100 parts by mass of the polycarbonate resin, which has a terminal hydroxyl group content of 150-800 ppm.

IPC Classes  ?

• C08G 64/04 - Aromatic polycarbonates
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
• C08K 7/06 - Elements
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Provided are a resin composition with which laser welding is possible under wide-laser-irradiation conditions, a molded article, a galvano-type laser welding kit, an onboard camera component, an onboard camera module, a UV ray exposure body, and a method for manufacturing the molded article. The galvano-type laser welding resin composition contains 0.1-20 mass parts of a reactive compound to 100 mass parts of a thermoplastic resin.

IPC Classes  ?

• G03B 15/00 - Special procedures for taking photographsApparatus therefor
• C08K 7/14 - Glass
• C08L 67/00 - Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chainCompositions of derivatives of such polymers
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08J 5/18 - Manufacture of films or sheets
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/04 - Carbon

Abstract

Provided are a resin composition that demonstrates minimal color loss even after a weathering resistance test and has superior heat resistance, as well as a molded product, a kit, a vehicle on-board camera component, a vehicle on-board camera module, and a molded product manufacturing method that use said resin composition. This resin composition includes 0.001-5 parts by mass of a dye and 5-100 parts by mass of an inorganic filler, per 100 parts by mass of a resin component that includes 50-95 wt% of a polybutylene terephthalate resin (A) and 5-50 wt% of a thermoplastic resin (B) having a glass transition temperature that is 150-150°C higher than that of the polybutylene terephthalate resin, as measured using a differential scanning calorimeter.

IPC Classes  ?

• G03B 15/00 - Special procedures for taking photographsApparatus therefor
• G03B 17/56 - Accessories
• C08K 7/14 - Glass
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 101/00 - Compositions of unspecified macromolecular compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08J 5/18 - Manufacture of films or sheets
• H04N 5/225 - Television cameras
• C08K 3/013 - Fillers, pigments or reinforcing additives

Abstract

Provided are a resin composition having high nominal tensile strain, low flexural modulus, and excellent flame retardancy, and a molded article and an electric wire that use the same. A resin composition including (C) 45-100 mass parts of an intumescent flame retardant and (D) 0.1-3.0 mass parts of a core-shell polymer having a fluorine resin as the core per 100 total mass parts of (A) and (B) comprising (A) 1-35 mass parts of a polyphenylene ether resin and (B) 99-65 mass parts of a styrene-olefin block copolymer having a number average molecular weight of less than 100,000 and a content of styrene-derived structural units that is 15-40 mass% of the total structural units.

IPC Classes  ?

• C08K 5/52 - Phosphorus bound to oxygen bound to oxygen only
• 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 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 71/12 - Polyphenylene oxides
• H01B 7/02 - Disposition of insulation
• H01B 7/18 - Protection against damage caused by external factors, e.g. sheaths or armouring by wear, mechanical force or pressure
• H01B 7/295 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame using material resistant to flame
• C08K 3/32 - Phosphorus-containing compounds

Abstract

A thermoplastic resin composition including a thermoplastic resin component and a glass filler (C), the thermoplastic resin component including a polycarbonate resin (A) having a viscosity-average molecular weight of 13,000 to 22,000 and a polyester resin (B) including a terephthalic acid residue, a 1,4-cyclohexanedimethanol residue, and a 2,2,4,4-tetramethyl-1,3-cyclobutanediol residue. The amounts of the polycarbonate resin (A) and the polyester resin (B) are 25 to 65 parts by mass and 75 to 35 parts by mass, respectively, relative to 100 parts by mass of the total amount of the polycarbonate resin (A) and the polyester resin (B). The amount of the glass filler (C) is 10 to 45 parts by mass relative to 100 parts by mass of the thermoplastic resin component. A molded article is produced by performing injection molding of the thermoplastic resin composition with a heat-insulation mold or heat-and-cool molding of the thermoplastic resin composition.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• B29C 45/73 - Heating or cooling of the mould
• B29C 45/26 - Moulds

Abstract

A molded object of a poly(butylene terephthalate) resin composition comprising (A) a poly(butylene terephthalate) resin, (B) a polycarbonate resin, and (C) an elastomer, characterized by including the poly(butylene terephthalate) resin (A) and the polycarbonate resin (B) in amounts of 30-75 parts by mass, excluding 30 parts by mass, and of 25-70 parts by mass, excluding 70 parts by mass, respectively, per 100 parts by mass of the sum of (A) and (B) and by having a morphology which includes a phase (a) of the poly(butylene terephthalate) resin (A) and a phase (b) of the polycarbonate resin (B) and in which the elastomer (C) is present in both the phase (a) and the phase (b).

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 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A thermoplastic resin composition, may include a thermoplastic resin (A) and, per 100 parts by mass of the thermoplastic resin (A), from 0 to 0.2 parts by mass of a metal salt-containing flame retardant (B), and not less than 0.05 parts by mass and less than 3 parts by mass of an organopolysiloxane (C), wherein the organopolysiloxane (C) has a molecular weight distribution (Mw/Mn) in a range of from 1.01 to 1.4.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 5/42 - Sulfonic acidsDerivatives thereof
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• C08L 33/08 - Homopolymers or copolymers of acrylic acid esters
• C08L 83/04 - Polysiloxanes
• C08G 77/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
• C08G 77/16 - Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxy groups
• C08G 77/18 - Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups

Abstract

Provided are: a resin composition which has a low dielectric loss tangent and which is used in an electronic/electrical device component that uses electromagnetic waves having a frequency of 1 GHz or more; and an electronic/electrical device component that uses electromagnetic waves having a frequency of 1 GHz or more. This resin composition, which is used in an electronic/electrical device component that uses electromagnetic waves having a frequency of 1 GHz or more, contains a polycarbonate resin. The mass ratio of constituent units represented by formula (1) and polycarbonate units other than constituent units represented by formula (1) in the polycarbonate resin is 33-100:67-0. In formula (1), R1and R2are each independently a hydrogen atom or a methyl group, and W1 denotes a single bond or a divalent group.

IPC Classes  ?

• C08G 64/04 - Aromatic polycarbonates
• C08K 7/14 - Glass
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/34 - Silicon-containing compounds
• C08K 3/38 - Boron-containing compounds

Abstract

A resin composition for laser direct structuring, which has a low loss tangent and on which plating can be formed, a molded product, and a production method of a plated molded product are provided. This resin composition for laser direct structuring contains a polycarbonate resin and a laser direct structuring additive, wherein at least 5 mass% of all constituent units of the polycarbonate resin are represented by formula (1). In formula (1), R1and R2are independently a hydrogen atom or a methyl group, and W1 represents a single bond or a divalent group.

IPC Classes  ?

• C08G 64/04 - Aromatic polycarbonates
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• H01P 11/00 - Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/22 - OxidesHydroxides of metals
• H01Q 1/38 - Structural form of radiating elements, e.g. cone, spiral, umbrella formed by a conductive layer on an insulating support

Abstract

A polycarbonate resin composition which has high rigidity, excellent dimensional stability, and low linear expansion properties. The polycarbonate resin composition contains, relative to 100 parts by mass of a polycarbonate resin (A), 10 to 100 parts by mass of an acrylonitrile-styrenic copolymer (B), 10 to 100 parts by mass of glass flakes (C) having an average thickness of 0.45 to 1 μm, and 5 to 50 parts by mass of glass fibers (D) having an elliptical cross section with an ellipticity of more than 1.5 and not more than 8, wherein the mass ratio (D)/(C) of the content of the glass fibers (D) having an elliptical cross section to the content of the glass flakes (C) is 0.1 to 1.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 7/14 - Glass
• C08K 3/40 - Glass
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles

Abstract

A polycarbonate resin composition according to the present invention is characterized by containing, per 100 parts by mass of a polycarbonate resin (A), 0.1–10 parts by mass of a polycarbonate copolymer (B) of (B1) bisphenol A and (B2) optionally substituted poly-n-propylene glycol joined by carbonate bonds, and 0.005–0.5 parts by mass of a phosphorous-based stabilizer (C).

IPC Classes  ?

• C08K 5/49 - Phosphorus-containing compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

A polycarbonate resin composition containing 0.1 to 10 parts by mass of a polycarbonate copolymer (B) having carbonate bonding between (B1) bisphenol A and a (B2) polyalkylene glycol and 0.005 to 0.5 parts by mass of a phosphorus-containing stabilizer (C) relative to 100 parts by mass of a polycarbonate resin (A).

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08G 64/18 - Block or graft polymers
• C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
• C08G 64/30 - General preparatory processes using carbonates
• C08K 5/1525 - Four-membered rings
• C08K 5/526 - Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
• C08K 5/527 - Cyclic esters
• C08K 5/1515 - Three-membered rings

Abstract

The present invention addresses the problem of providing: a PC resin composition which has excellent impact resistance, transparency, and weather resistance, and from which a PC resin alloy that can be paintless can be produced; and a molded product produced by using the PC resin composition. This polycarbonate resin composition contains a polycarbonate resin (A) and a styrene-based resin (B) including no butadiene, wherein the content of the styrene resin (B) including no butadiene is 20-70 parts by mass, with respect to 100 parts by mass of the polycarbonate resin (A), and the following conditions (1)-(3) are satisfied. (1) The notched Charpy value is least 70 kJ/m2, as measured according to the ISO179 standard, by using a test piece which has a thickness of 4.0 mm and is produced from the polycarbonate resin composition according to the same standards. (2) The critical vertical force is at least 8.0 N, as measured according to ISO19252 standards, by using a test piece produced from the polycarbonate resin according to ISO3167 (Type A1) standards. (3) The L* value is at most 40, as measured according to JIS-K-7105-1 standards, by using a test piece having a thickness of 4.0 mm and composed of the polycarbonate produced according to ISO tensile test standards.

IPC Classes  ?

• C08L 25/04 - Homopolymers or copolymers of styrene
• 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 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

A thermoplastic resin composition contains 10 to 90% by mass of (A) thermoplastic resin; 1 to 20% by mass of (B) laser direct structuring additive; and 0.3 to 7.0% by mass of (D) graphite, a total of the ingredient (A), the ingredient (B) and the ingredient (D) being always kept at 100% by mass or below, and a ratio by mass given by ingredient (B)/ingredient (D) being 1.0 to 20.

IPC Classes  ?

• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08G 59/50 - Amines
• C08K 3/04 - Carbon
• C08K 3/22 - OxidesHydroxides of metals
• C08K 7/14 - Glass
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
• C23C 18/20 - Pretreatment of the material to be coated of organic surfaces, e.g. resins

Abstract

A thermoplastic resin composition which is characterized by containing from 0.0001 part by mass to 0.09 part by mass of (B) spherical fine particles having an average particle diameter of from 500 nm to 2,500 nm with respect to 100 parts by mass of (A) a transparent thermoplastic resin.

IPC Classes  ?

• C08K 7/18 - Solid spheres inorganic
• C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity

Abstract

A polycarbonate resin composition pellet contains a polycarbonate resin (A), an aromatic compound (B) represented by general formula (1) below, and a phosphorus-based stabilizer (C), the aromatic compound (B) being contained in the pellet in an amount of 0.001% to 1% by mass, the phosphorus-based stabilizer (C) being contained in the pellet in an amount of 0.003% to 0.5% by mass: (where Y is a hydrogen atom or an organic group that does not contain any of nitrogen, sulfur, and halogen elements, when Y is a hydrogen atom, X is an alkyl group or an optionally substituted aryl group, when Y is an organic group, X is an organic group that does not contain any of nitrogen, sulfur, and halogen elements, g is 1 or 2, n is 0 to 5, k is 1 to 4, and k+n is 6 or less.)

IPC Classes  ?

• C08K 5/526 - Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08K 5/05 - AlcoholsMetal alcoholates
• C08K 5/06 - EthersAcetalsKetalsOrtho-esters
• C08K 5/101 - EstersEther-esters of monocarboxylic acids
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• 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

Provided is a polycarbonate resin composition that can block ultraviolet light as well as light on the visible light side therefrom at wavelengths of 400 to 420 nm, and that is free of the problem of gas generation during molding. The polycarbonate resin composition characteristically comprises, per 100 parts by mass of a polycarbonate resin (A), (i) 0.02 to 1 parts by mass of a sesamol group-containing benzotriazole ultraviolet absorber (B1) having a maximum absorption wavelength of at least 375 nm in the absorption curve determined according to JIS K 7105 using the following formula, or (ii) 0.08 to 1 parts by mass of a sesamol group-containing benzotriazole ultraviolet absorber (B2) having a maximum absorption wavelength of at least 360 nm and less than 375 nm in the absorption curve determined according to JIS K 7105 using the following formula; and 0.01 to 0.5% by mass of a stabilizer (C).

IPC Classes  ?

• C08K 5/3475 - Five-membered rings condensed with carbocyclic rings
• C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• C08K 5/49 - Phosphorus-containing compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• 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
• G02B 5/20 - Filters
• C07D 405/04 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
• C08K 5/00 - Use of organic ingredients

Abstract

Provided are: a resin composition which, even after having been placed under high-temperature, high-humidity environments, can be effectively inhibited from having a reduced mechanical strength and can be inhibited from having caused a color transfer; a molded article obtained from the resin composition; and a method for producing the resin composition. The resin composition comprises a polyamide resin and cerium oxide and has a lanthanum content higher than 0 mass ppm but not higher than 40 mass ppm.

IPC Classes  ?

• C08K 7/14 - Glass
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers
• C08K 3/22 - OxidesHydroxides of metals

Abstract

Provided is a polycarbonate resin composition that can block ultraviolet light as well as light on the visible light side therefrom at wavelengths of 400 to 420 nm, and that is free of the problem of gas generation during molding. The polycarbonate resin composition characteristically comprises, per 100 parts by mass of a polycarbonate resin (A), (i) 0.02 to 1 parts by mass of a sesamol group-containing benzotriazole ultraviolet absorber (B1) having a maximum absorption wavelength of at least 375 nm in the absorption curve determined according to JIS K 7105 using the following formula, or (ii) 0.08 to 1 parts by mass of a sesamol group-containing benzotriazole ultraviolet absorber (B2) having a maximum absorption wavelength of at least 360 nm and less than 375 nm in the absorption curve determined according to JIS K 7105 using the following formula; and 0.01 to 0.5% by mass of a stabilizer (C).

IPC Classes  ?

• C08K 5/3475 - Five-membered rings condensed with carbocyclic rings
• C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
• C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
• C08K 5/49 - Phosphorus-containing compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• 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
• G02B 5/20 - Filters
• C07D 405/04 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
• C08K 5/00 - Use of organic ingredients

Abstract

Provided are: a resin composition that can be used for laser welding, and that achieves a high light transmittance and a high flame retardancy, and that can be used to provide a molded article having a high Charpy impact strength; a molded article; a kit; and a production method for the molded article. This resin composition contains a polyamide resin, a flame retardant, an elastomer, and a light transmitting dye, wherein when the resin composition is molded into a thickness of 1 mm, the light transmittance thereof is 30% or more at a wavelength of 940 nm, and when the resin composition is molded into a thickness of 4 mm, the unnotched Charpy impact strength thereof according to ISO 179 is 50 kJ/m2or more, and the notched Charpy impact strength thereof according to ISO 179 is 10 kJ/m2 or more, and when the resin composition is molded into a thickness of 0.75 mm, the resin composition is classified as V-0 in the UL94 flammability test.

IPC Classes  ?

• C08K 5/5399 - Phosphorus bound to nitrogen
• 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 77/06 - Polyamides derived from polyamines and polycarboxylic acids
• C08L 71/12 - Polyphenylene oxides
• B29C 65/16 - Laser beam
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A polycarbonate resin composition which, in relation to 100 parts by mass of a polycarbonate resin (A), contains 1-50 parts by mass of a filler (B) having an average particle diameter of 0.1-10 μm, characterised in that, when a filler having an average particle diameter exceeding 10 μm is contained, the contained amount thereof is less than 10 mass% in the resin composition, and the contained amount, when containing a phosphorus flame retardant, is 2% or less in the resin composition.

IPC Classes  ?

• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 23/02 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers not modified by chemical after-treatment
• C08L 23/26 - 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
• C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• 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 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 3/34 - Silicon-containing compounds

Abstract

Provided are a resin composition and molded article having excellent adhesiveness at a weld section and excellent weather resistance. The resin composition contains a polyacetal resin and a core-shell elastomer, and, when molded into a 1.6 mm-thick test piece having a weld section in the center thereof, has a weld elongation of 20% or greater when stretched at 10 mm/min according to ASTM D638 standards. The core-shell elastomer contains a butadiene-containing rubber, and an acrylic resin is included in the shell part.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• 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

The present invention provides: a resin composition which is mainly composed of a polyacetal resin and has excellent flexibility, and which enables the achievement of a welded part that exhibits good adhesion; and a molded article. A resin composition which contains a polyacetal resin and a core-shell type elastomer. If this resin composition is molded into a test piece that has a welded part in the center, while having a thickness of 3.2 mm, the average secondary particle diameter of the core-shell type elastomer that is present in the welded part is 200 nm or less.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• 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

Provided are a novel resin composition having excellent adhesion in a welded portion, and a molded article. The resin composition contains a polyacetal resin and a core-shell type elastomer, wherein the weld elongation of a 1.6 mm thick test specimen having a welded portion in the center and obtained by molding the resin composition is at least 20% when pulled at 10 mm/min according to ASTM D638, and the glossiness at 20° of a 3.2 mm thick test specimen obtained by molding the resin composition is at least 70.0% as measured according to the brightness measurement in JIS Z 8741.

IPC Classes  ?

• C08L 59/00 - Compositions of polyacetalsCompositions of derivatives of polyacetals
• 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

This thermoplastic resin composition for millimeter-wave radar members is characterized by containing, with respect to 100 parts by mass of a polybutylene terephthalate resin (A), 15-65 parts by mass of a rubber-reinforced polystyrene-based resin (B1) and/or 10-70 parts by mass of a polycarbonate resin (B2) as component (B), 0.1-3 parts by mass of an epoxy compound (D), and 30-150 parts by mass of glass fibers (E).

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 3/20 - Compounding polymers with additives, e.g. colouring
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 7/14 - Glass
• C08L 25/06 - Polystyrene
• C08L 25/08 - Copolymers of styrene
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• G01S 7/03 - Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
• G01S 13/931 - Radar or analogous systems, specially adapted for specific applications for anti-collision purposes of land vehicles
• H01Q 1/42 - Housings not intimately mechanically associated with radiating elements, e.g. radome

Abstract

A polycarbonate resin composition that, with good balance, achieves superior chemical resistance, flame retardancy, impact resistance, heat resistance, and moist heat resistance. This polycarbonate resin composition is characterized by including, per 100 parts by mass of a polycarbonate resin (A): 1-60 parts by mass of a liquid crystal polyester (B) that includes a repeating unit represented by a specific formula (I)-(IV); 0.01-0.5 parts by mass of an organic metal salt-type flame retardant (C); and 0.05-1 parts by mass of a fluorine-including resin (D), wherein the polycarbonate resin composition has a notched Charpy impact strength of 15.5kJ/m2 or greater at 23°C as measured on the basis of ISO 179 using a 3mm-thick ISO dumbbell piece.

IPC Classes  ?

• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• C08L 67/03 - Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the hydroxy and the carboxyl groups directly linked to aromatic rings
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

A luminous polycarbonate resin composition, which comprises, per 100 parts by mass of a polycarbonate resin (A), 0.8-20 parts by mass of a red light-emitting luminous material (B1) as a luminous material (B), characterized in that the L* value measured by the following method (X) is 65 or greater. Method (X): The luminous polycarbonate resin composition is injection-molded at a cylinder temperature of 300°C, a mold temperature of 120°C and a molding cycle of 45 seconds to give a test piece in the shape of a three-step plate (width: 50 mm, length: 90 mm, thickness: 1 mm, 2 mm and 3 mm). The part of the thickness of 3 mm of this test piece is subjected to the L* value measurement using a colorimeter in accordance with JIS Z8772 under the following conditions.　Reflectometry: D65 light source, 10° visual field. Aperture: 30 φ. Sample presser: white.

IPC Classes  ?

• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/10 - Metal compounds
• C08K 3/24 - AcidsSalts thereof
• C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds

Abstract

A polycarbonate resin composition containing 5-30 mass parts of a melt-flow improver (B), 3-20 mass parts of a phosphorus-based flame retardant (C), 0.05-2 mass parts of a fluoropolymer (D), and 20-45 mass parts of an inorganic filler including talc (E) per 100 mass parts of a polycarbonate resin (A) having a viscosity average molecular weight of 18,500 or higher. The proportion of filler (F) other than talc (E) in the inorganic filler is 20 mass% or less and the tensile breaking strength retention rate in evaluation of chemical resistance is 70% or higher.

IPC Classes  ?

• C08K 5/49 - Phosphorus-containing compounds
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08L 27/12 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogenCompositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
• C08K 3/34 - Silicon-containing compounds