Abstract

[Problem] To provide a polybutylene terephthalate resin composition of superior alkaline solution resistance and hydrolysis resistance, and superior fluidity, as well as a molded article and composite using the same. [Solution] A polybutylene terephthalate resin composition containing: (A) 100 parts by mass polybutylene terephthalate resin; (B) a quantity of epoxy resin yielding 0.5–1.5 epoxide groups per 1 terminal carboxyl group of the polybutylene terephthalate resin (A); (C) 0.5–5 parts by mass of a silicone compound; and (D) 0.05–0.5 parts by mass of a phosphorus compound.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B32B 27/00 - Layered products essentially comprising synthetic resin
• C08G 59/42 - Polycarboxylic acidsAnhydrides, halides, or low-molecular-weight esters thereof
• C08K 3/32 - Phosphorus-containing compounds
• C08K 5/49 - Phosphorus-containing compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 83/04 - Polysiloxanes
• C09J 7/24 - PlasticsMetallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
• C09J 183/04 - Polysiloxanes

Abstract

[Problem] To inhibit a poly(butylene terephthalate) resin composition containing a flame retardant based on a halogenobenzyl acrylate from corroding the molding machine or mold when molded and to inhibit insert-molded articles obtained using the poly(butylene terephthalate) resin composition from suffering the corrosion of the metallic terminals. [Solution] The problem is solved by a poly(butylene terephthalate) resin composition containing a flame retardant based on a halogenobenzyl acrylate, wherein the flame retardant is one produced through a step in which a halogenated aromatic compound, e.g., chlorobenzene, was used in a reduced amount.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 33/16 - Homopolymers or copolymers of esters containing halogen atoms

Abstract

[Problem] The problem addressed by the present invention is to provide a flame-retardant polybutylene terephthalate resin composition that can be used in components such as an arc extinguishing member and that is less likely to cause contact failure due to corrosion of a contact metal by an arc in a circuit breaker. [Solution] The problem is solved by using at least a certain amount of a halogenated aromatic compound such as chlorobenzene in the flame retardant production process in a polybutylene terephthalate resin composition that uses a halogenated benzyl acrylate flame retardant as a flame retardant.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/03 - Halogenated hydrocarbons aromatic
• C08L 33/16 - Homopolymers or copolymers of esters containing halogen atoms

Abstract

[Problem] To obtain a poly(butylene terephthalate) resin composition which is excellent in terms of appearance and moldability and is suitable for producing molded articles that are less apt to crack when joined to other members. [Solution] A poly(butylene terephthalate) resin composition for molded articles to be joined to other members, which comprises 100 parts by mass of the sum of a poly(butylene terephthalate) resin (A) and a poly(ethylene terephthalate) resin (B), the (A)/(B) mass ratio being 5/5 to 7/3, 0.01-0.5 parts by mass of a phosphorus compound stabilizer (C), and 80-150 parts by mass of an inorganic filler (D), wherein 0.5-3.0 mol% of the poly(ethylene terephthalate) resin (B) has been modified with an aromatic dicarboxylic acid other than terephthalic acid and the poly(ethylene terephthalate) resin has a crystallization temperature of 190°C or lower.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/013 - Fillers, pigments or reinforcing additives
• C08K 5/51 - Phosphorus bound to oxygen

Abstract

[Problem] To provide a production method of a thermoplastic aromatic polyester resin composition with excellent hydrolysis resistance. [Solution] This production method of a thermoplastic aromatic polyester resin composition involves a step for mixing a thermoplastic aromatic polyester resin A, an alkaline composition B, which contains a thermoplastic aromatic polyester resin a and an alkaline compound b, and a carbodiimide compound C. The alkaline composition B is preferably obtained by melting and mixing together the thermoplastic aromatic polyester resin a and an aqueous solution of the alkaline compound b. The carbodiimide compound C preferably contains an aromatic carbodiimide compound. The content of the alkaline compound b in the thermoplastic aromatic polyester resin composition is preferably 10-100 ppm.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08K 3/26 - CarbonatesBicarbonates
• C08K 5/098 - Metal salts of carboxylic acids
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds

Abstract

This polybutylene terephthalate resin composition contains a polybutylene terephthalate resin, a silicone-based compound which makes up 0.5-1.8 mass% of the total mass of the polybutylene terephthalate resin composition and has a kinetic viscosity of 1000-10000 cSt at 25°C, and an olefin elastomer which makes up 5-20 mass% of the total mass of the polybutylene terephthalate resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 7/14 - Glass
• C08L 23/08 - Copolymers of ethene
• C08L 83/04 - Polysiloxanes

Abstract

[Problem] The present invention addresses the problem of providing a method for producing a thermoplastic aromatic polyester resin composition containing a coloring agent and having superior heat shock resistance, and a method for producing an insert-molded article. The present invention addresses the problem of providing a method for inhibiting a reduction in the heat shock resistance of a thermoplastic aromatic polyester resin composition containing a coloring agent. [Solution] A method for producing a thermoplastic aromatic polyester resin composition having superior heat shock resistance, the method comprising a step for mixing thermoplastic aromatic polyester resin A with coloring agent composition B containing thermoplastic aromatic polyester resin a and coloring agent b. A method for inhibiting reduction in the heat shock resistance of a thermoplastic aromatic polyester resin composition containing a coloring agent, the method comprising mixing thermoplastic aromatic polyester resin A with coloring agent composition B containing thermoplastic aromatic polyester resin a and coloring agent b.

IPC Classes  ?

• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• 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 45/26 - Moulds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 3/04 - Carbon
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29K 67/00 - Use of polyesters as moulding material

Abstract

[Problem] To address the problem of providing an insert-molded article which has exceptional heat shock resistance and in which there is used a thermoplastic aromatic polyester resin composition containing a colorant. Also, to address the problem of providing a method for suppressing decreases in the heat shock resistance of a thermoplastic aromatic polyester resin composition containing a colorant. [Solution] An insert molded article that has exceptional heat shock resistance and has a resin member and an insert member, the resin member including a thermoplastic aromatic polyester resin composition that contains a thermoplastic aromatic polyester resin A and a colorant B that has an average primary particle size of 25 nm or greater. Also, a method for suppressing decreases in the heat shock resistance of a resin composition containing a colorant, the method comprising combining a colorant B that has an average primary particle size of 25 nm or greater with a thermoplastic aromatic polyester resin A for an insert-molded article.

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 45/26 - Moulds

Abstract

A method for producing a polybutylene terephthalate resin composition, the method comprising melt-kneading, using an extruder, under production conditions that satisfy equation (I) below, a polybutylene terephthalate resin having an intrinsic viscosity of 0.80 to 0.90 dL/g, a fibrous filling material in an amount corresponding to 40 to 60 mass% of the total amount of the polybutylene terephthalate resin composition, a polycarbonate resin in an amount such that the ratio per a total of 100 mass% of the polybutylene terephthalate resin and the polycarbonate resin is 15-28 mass%, and a phosphorus compound as a transesterification inhibitor. In equation (I), Q is the discharge amount (kg/hr) of a melt-kneaded material discharged from a die of the extruder, and NS represents the screw rotation frequency of the extruder. 1.4 ≤ Q/NS≤1.8 (I)

IPC Classes  ?

• B29B 7/38 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary

Abstract

[Problem] To provide a polybutylene therephthalate resin composition for laser welding, and a molded product. [Solution] To provide a polybutylene terephthalate resin composition for laser welding, containing: a polybutylene terephthalate resin; and a laser light transmissivity improving agent including a layered silicate mineral having an average primary particle size of 1.0 µm to 5.0 µm. The amount of laser light transmissivity improving agent contained is preferably 0.01 parts by mass to 20 parts by mass with respect to 100 parts by mass of polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 65/16 - Laser beam
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 3/34 - Silicon-containing compounds
• C08K 7/00 - Use of ingredients characterised by shape

Abstract

[Problem] To provide a polybutylene terephthalate resin composition for laser welding, a molded product, and a composite molded product. [Solution] Provided is a polybutylene terephthalate resin composition for laser welding, containing a polybutylene terephthalate resin and inorganic particles having an average primary particle size of 1.0 µm to 10 µm, the content of inorganic particles falling within the range of 0.01 parts by mass to 20 parts by mass with respect to 100 parts by mass of polybutylene terephthalate resin. The resin composition may further contain an inorganic filler.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 65/16 - Laser beam
• C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
• C08K 3/34 - Silicon-containing compounds

Abstract

A polybutylene terephthalate resin composition which contains (A) a polybutylene terephthalate resin, (B) a polyethylene terephthalate resin and (C) an epoxy group-containing olefin copolymer that contains (c-1) a constituent unit derived from an α-olefin and (c-2) a constituent unit derived from a glycidyl ester of an á, β-unsaturated acid. A molded article of this polybutylene terephthalate resin composition, which is molded at a molding temperature of 260°C under a holding pressure of 80 MPa with a mold temperature of 80°C in accordance with ISO 3167 (Type A test piece), has a surface roughness of 0.50 μm or less. The content of the epoxy groups in the epoxy group-containing olefin copolymer (C) is from 0.01% by mass to 0.35% by mass (inclusive) relative to the total mass of the polybutylene terephthalate resin composition; and the content of (meth)acrylate ester structures is 1.5% by mass or less relative to the total mass of the polybutylene terephthalate resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 7/20 - Glass
• 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

Abstract

Provided is a polybutylene terephthalate resin composition which has further improved fluidity (melt fluidity) while maintaining mechanical characteristics. The polybutylene terephthalate resin composition according to the present invention contains 0.05-5 parts by mass of a glycerin fatty acid ester having a hydroxyl value of 200-400, and 0.05-5 parts by mass of a polyvalent alcohol fatty acid ester having a hydroxyl value of 100 or less, with respect to 100 parts by mass of a polybutylene terephthalate resin. The glycerin fatty acid ester preferably comprises glycerin and/or a dehydration condensation product thereof, and a fatty acid having 12 or more carbon atoms.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols

Abstract

Provided is a polybutylene terephthalate resin composition in which it is possible to effectively suppress discoloration without lowering the heat shock resistance. The polybutylene terephthalate resin composition according to the present invention constitutes part of a molded article having a lightness L* value of 80 or higher as measured using a color difference meter, wherein: the polybutylene terephthalate resin composition includes a polybutylene terephthalate resin having a terminal carboxyl group content of 30 meq/kg or less, a carbodiimide compound, and a phosphite compound; and the phosphite compound content is 0.05-0.15 parts by mass per 100 parts by mass of polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3

Abstract

Provided is a resin composition which includes a poly(butylene terephthalate) resin excellent in terms of physical and chemical properties, etc. and which has excellent ATF resistance and is suitable for use as molded articles to be used in contact with high-temperature automotive lubricating oils such as ATF. The poly(butylene terephthalate) resin composition according to the present invention comprises a poly(butylene terephthalate) resin and a carbodiimide compound, has a tensile strength retention of 50% or higher after 250-hour immersion in a 150ºC automotive lubricating oil, and is for use in configuring molded articles to be used in contact with automotive lubricating oils.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/13 - PhenolsPhenolates
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08K 5/372 - Sulfides
• C08K 5/49 - Phosphorus-containing compounds

Abstract

The present invention provides a polybutylene terephthalate resin composition, having performance of high durability and the like in a cold cycle environment, and having high strength. Specifically, relative to 100 parts by weight of a polybutylene terephthalate resin (A) having 30 meq/kg or less of the amount of terminal carboxyl groups, there are added a carbodiimide compound (B) in an amount of 0.3 to 1.5 equivalents of the carbodiimide functional group when the amount of carboxyl terminal group in the polybutylene terephthalate resin (A) is set as 1, 20 to 100 parts by weight of a fibrous filler (C), and 5 to 15 parts by weight of an elastomer (D).

IPC Classes  ?

• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 7/02 - Fibres or whiskers
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers

Abstract

Provided is a technique for reducing the release of VOCs, said VOCs including VOCs other than THF, from a polybutylene terephthalate resin molded article containing a polybutylene terephthalate resin. The present invention relates to: a method for manufacturing a polybutylene terephthalate resin composition that contains a polybutylene terephthalate resin produced by a direct esterification method and an alkali compound, said method comprising a step for melt-kneading a master batch containing a polyalkylene terephthalate resin and the alkali compound with the polybutylene terephthalate resin; and a method for manufacturing a polybutylene terephthalate resin molded article that contains a polybutylene terephthalate resin produced by a direct esterification method and an alkali compound, said method comprising a step for dry-blending the master batch with the polybutylene terephthalate resin and then molding the obtained blend.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques
• C08K 5/098 - Metal salts of carboxylic acids

Abstract

A polybutylene terephthalate resin composition that contains polybutylene terephthalate resin, glass fiber in an amount of 10-20% by mass of the total amount of the composition, an ethylene-ethyl acrylate copolymer, and an epoxy compound having an epoxy equivalent of 600-1500 g/Eq, the comparative tracking index (CTI) measured in accordance with IEC60112 3rd edition being 600 V or higher.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 7/14 - Glass
• C08L 23/08 - Copolymers of ethene
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• H01R 13/46 - BasesCases

Abstract

Provided is a polybutylene terephthalate resin composition having excellent mold releasability, measurement stability and hydrolysis resistance, and exhibiting minimal discoloration under high-temperature conditions. The polybutylene terephthalate resin composition contains: (A) a polybutylene terephthalate resin, (B) a higher fatty acid ester of pentaerythritol, and (C) a low-molecular weight polyethylene having a number-average molecular weight of 3,000 to 7,000. It is preferable that the component (B) is pentaerythritol tetrastearate, and that the component (C) is a low-molecular weight polyethylene having a number-average molecular weight of 4,500 to 5,500.

IPC Classes  ?

• C08G 63/02 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Disclosed are: a thermoplastic polyester resin composition comprising a thermoplastic polyester resin and an AS resin, wherein the ratio of a peak area at 1573 cm-1 to a peak area at 1450 cm-1 in an IR spectrum of the AS resin which is obtained by an IR measurement after the melt heating of the AS resin in air at a temperature of 260ºC for 30 minutes is 2.30% or less, and the AS resin is produced by bulk polymerization; and a molded article produced by the injection molding of the thermoplastic polyester resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08L 25/12 - Copolymers of styrene with unsaturated nitriles
• C08F 2/02 - Polymerisation in bulk
• C08F 212/10 - Styrene with nitriles

Abstract

The purpose of the present invention is to provide a polybutylene terephthalate resin composition which can be used for producing an insert-molded article in which a plate-like member is embedded as an insert member and which has excellent heat shock resistance. The present invention provides a resin composition for insert molding, which comprises a polybutylene terephthalate resin, a fibrous filler that has a cross-sectional area having a modification ratio of 1.5 to 5.0 inclusive and an elastomer, wherein the elastomer is a modified ethylene copolymer produced by carrying out the graft polymerization of at least one compound selected from the group consisting of maleic acid and derivatives thereof.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08K 3/40 - Glass
• C08K 7/14 - Glass
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Abstract

Disclosed are: a polyalkylene terephthalate resin composition which contains (A) a polyalkylene terephthalate resin and (B) an acrylic core/shell polymer that has an average particle diameter of 2 μm and more, and contains the core layer components in an amount of more than 80% by mass but less than 100% by mass relative to the total amount of the core layer components and the shell layer components; and a molded article which is obtained by molding this polyalkylene terephthalate resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond

Abstract

　A mold-release-improving agent to be used in molding a polybutylene terephthalate resin composition that comprises an ethylene ethyl acrylate copolymer; and a method for improving mold release in which this copolymer is added to a polybutylene terephthalate resin composition during molding of a polybutylene terephthalate resin composition, and the release of the molded article from the mold after molding is improved.

IPC Classes  ?

• B29C 33/62 - Releasing, lubricating or separating agents based on polymers or oligomers
• B29C 33/58 - Applying the releasing agents
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a polybutylene terephthalate resin composition which has excellent mold releasability, measurement stability and hydrolysis resistance, while being suppressed in discoloration in a high-temperature environment. A polybutylene terephthalate resin composition which contains (A) a polybutylene terephthalate resin, (B) a higher fatty acid ester of pentaerythritol and (C) a low-molecular-weight polyethylene having a number average molecular weight of 3,000-7,000. It is preferable that the component (B) is pentaerythritol tetrastearate and the component (C) is a low-molecular-weight polyethylene having a number average molecular weight of 4,500-5,500.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08L 23/06 - Polyethene

Abstract

Provided is a means for obtaining a polybutylene terephthalate resin composition that exhibits excellent hydrolysis resistance and high fluidity in a molten state. A carbodiimide compound (B) and a polyhydric hydroxyl group-containing compound (C) are added to a polybutylene terephthalate resin (A) having a terminal carboxyl group content of 30 meq/kg or lower. The polyhydric hydroxyl group-containing compound (C) that is used has a hydroxyl group value of 200 or higher. It is preferable for the polybutylene terephthalate resin (A) to have an intrinsic viscosity of 0.6 dL/g or higher.

IPC Classes  ?

• C08K 5/11 - EstersEther-esters of acyclic polycarboxylic acids
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds

Abstract

Provided is a flame-retardant polybutylene terephthalate resin composition which is capable of providing a molded body having high flame retardancy without using an antimony-based flame retardant assistant. A flame-retardant polybutylene terephthalate resin composition according to the present invention contains 100 parts by mass of a polybutylene terephthalate resin, 5-100 parts by mass of a halogen-based flame retardant and 10-40 parts by mass of calcium borate. It is preferable that the halogen-based flame retardant is composed of at least one resin selected from the group consisting of brominated polybenzyl (meth)acrylate resins and bromine-containing epoxy resins. It is also preferable that the flame-retardant polybutylene terephthalate resin composition additionally contains a fibrous inorganic filler. The flame-retardant polybutylene terephthalate resin composition provides a molded body that has a flame retardancy of V-0 level according to UL-94 flammability test.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/38 - Boron-containing compounds
• C08K 7/04 - Fibres or whiskers inorganic
• C08L 33/16 - Homopolymers or copolymers of esters containing halogen atoms
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

　Provided are a polybutylene terephthalate resin composition having sufficient fluidity to be molded as thin-walled during molding and having excellent flame retardancy even when molded as thin-walled, and an injection-molded article obtained using this resin composition. A polybutylene terephthalate resin composition containing 20 to 65 total parts by mass of (B) brominated epoxy flame retardant and/or brominated acrylate flame retardant, 10 to 30 parts by mass of (C) antimony flame retardant auxiliary, 3 to 15 parts by mass of (D) talc, and 1 to 10 parts by mass of (E) polyvalent hydroxyl group-containing compound having a hydroxyl value of 100 or higher per 100 parts by mass of (A) polybutylene terephthalate resin having an intrinsic viscosity of 0.70 to 1.00 g/dL; and an injection-molded article having a 0.2 to 0.5-mm-thick thin-walled portion in at least one portion obtained by injection-molding this resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/34 - Silicon-containing compounds
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• B29K 67/00 - Use of polyesters as moulding material

Abstract

Provided is technology that causes polybutylene terephthalate resin to react with a reactive compound and reduces the thermal decomposition of the polybutylene terephthalate resin, when performing reactive processing method using the polybutylene terephthalate resin. During production of polybutylene terephthalate resin pellets, the polybutylene terephthalate resin (A) and a reactive compound (B) that reacts with the polybutylene terephthalate resin (A) are reacted such that the difference between the intrinsic viscosity of a polybutylene terephthalate resin composition configuring the polybutylene terephthalate resin pellets and the intrinsic viscosity of a polybutylene terephthalate resin composition configuring a polybutylene terephthalate resin molded article is no more than 0.05 dL/g, and the amount of carboxylic group ends in the resin included in the polybutylene terephthalate resin pellets is adjusted so as to be no more than 25 meq/kg.

IPC Classes  ?

• C08G 63/91 - Polymers modified by chemical after-treatment
• B29C 47/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor (extrusion blow-moulding B29C 49/04)
• B29K 67/00 - Use of polyesters as moulding material

Abstract

Provided is a technique for making it possible for VOCs including a VOC other than THF to be hardly released from a molded article produced by molding a polybutylene terephthalate resin composition. A polybutylene terephthalate resin composition comprising a polybutylene terephthalate resin produced by a direct esterification method and calcium carbonate is used. When the polybutylene terephthalate resin composition is molded into a molded article, the molded article has a VOC emission amount of 50 μgC/g or less as measured by a VOC measurement method in accordance with the German Association of the Automotive Industry (Verband der Automobilindustrie (VDA)) 277.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/26 - CarbonatesBicarbonates

Abstract

To provide a polybutylene terephthalate resin composition offering excellent flowability, wherein the resin composition raises the weld strength and heat shock resistance of a welded body obtained by welding together molded products obtained by molding the polybutylene terephthalate resin composition. [Solution] A polybutylene terephthalate resin composition comprising a polybutylene terephthalate resin (A) having a weight-average molecular weight of 60,000-80,000 inclusive and an inorganic filler (B). Preferably, also included is 5-20 mass parts of an elastomer (C) relative to 100 mass parts of the polybutylene terephthalate resin (A).

IPC Classes  ?

• 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
• C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
• B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
• B29C 65/06 - Joining of preformed partsApparatus therefor by heating, with or without pressure using friction, e.g. spin welding
• B29C 65/08 - Joining of preformed partsApparatus therefor by heating, with or without pressure using ultrasonic vibrations
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• B32B 37/04 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the partial melting of at least one layer
• B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
• C08K 7/14 - Glass
• C08G 63/181 - Acids containing aromatic rings
• C08G 63/183 - Terephthalic acids
• C08G 63/16 - Dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a halogen-free polybutylene terephthalate resin composition which is black and has excellent tracking resistance. This polybutylene terephthalate resin composition comprises a polybutylene terephthalate resin and a colorant, wherein the colorant comprises (1) a combination of a blue organic pigment (a), a yellow organic pigment (b), and a red organic pigment (c) or (2) a combination of a blue organic pigment (a) and an orange organic pigment (d), none of these organic pigments (a) to (d) containing any halogen atom in the molecular structure, and the polybutylene terephthalate resin composition gives a molded article that has an L* value according to the L*a*b* color system, as determined in accordance with JIS Z8729 (2004), of 25 or less and that has a comparative tracking index, as determined in accordance with UL746A, of 0 in terms of PLC grade.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/00 - Use of organic ingredients
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients
• C09B 67/20 - Preparations of organic pigments
• C09B 67/22 - Mixtures of different pigments or dyes or solid solutions of pigments or dyes
• C09D 17/00 - Pigment pastes, e.g. for mixing in paints

Abstract

A polybutylene terephthalate resin composition which is free from bleeding and other problems, and improves the flowability (melt-flowability) while maintaining the characteristics such as mechanical strength or toughness. To 100 parts by weight of a composition composed of 50 to 90% by weight of (A) a polybutylene terephthalate resin and 10 to 50% by weight of (B) inorganic filler, is blended 0.05 to 5 parts by weight of (C) a glycerin fatty acid ester being composed of glycerin and/or a dehydrated condensate thereof and a fatty acid having 12 or more carbon atoms and having 200 or more hydroxyl value determined by a method specified in the description.

IPC Classes  ?

• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 7/14 - Glass
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a technique for producing a polybutylene terephthalate resin composition having a good balance among heat shock resistance, mechanical strength and dimensional stability and having excellent these properties. The polybutylene terephthalate resin composition according to the present invention comprises (A) a polybutylene terephthalate resin and (B) a fibrous filler which has a cross section having an aspect ratio of 1.5 to 3.5. The shape of the cross section of the component (B) is preferably a long ellipse. The component (B) is preferably a glass fiber. The polybutylene terephthalate resin composition may additionally comprise (C) a carbodiimide compound and/or (D) an elastomer. The polybutylene terephthalate resin composition can be molded to produce a molded article according to the present invention. The molded article is preferably an insert-molded article produced by the insert molding of the polybutylene terephthalate resin composition and a metal or an inorganic solid.

IPC Classes  ?

• 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
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08K 7/14 - Glass
• C08L 21/00 - Compositions of unspecified rubbers

Abstract

To provide a resin molded body which has all of excellent load-carrying capacity, excellent impact resistance, excellent stiffness, excellent flame retardancy and excellent appearance. The present invention provides a resin molded body for outdoor use, which is configured from a thermoplastic resin composition that contains a polybutylene terephthalate, a polyethylene terephthalate and/or a polycarbonate, a brominated acrylic flame retardant, an antimony compound and a glass fiber. With respect to this resin molded body, the value obtained by multiplying the tensile strength by the tensile elongation is 3 MPa or more, said tensile strength and tensile elongation being determined in accordance with ISO 527-1, 2; the Charpy impact value at 23°C as determined in accordance with ISO 179/1eA is 9 kJ/m2 or more; the bending modulus as determined in accordance with ISO 178 is 8,000 MPa or more; the flame retardancy as determined in accordance with UL 94 with a thickness of 2 mm is V-0 or higher; and the gloss as determined in accordance with JIS Z8741 is 90-110%.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 3/22 - OxidesHydroxides of metals
• C08K 7/14 - Glass
• C08L 23/08 - Copolymers of ethene
• C08L 33/16 - Homopolymers or copolymers of esters containing halogen atoms
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Provided are: a flame-retardant polybutylene terephthalate resin composition which exhibits excellent flame retardancy, glow-wire properties (GWIT), tracking resistance and bleed resistance in spite of a fact that a polybutylene terephthalate resin is used as a sole resin component; and a molded product of the resin composition. A flame-retardant resin composition comprising (A) a polybutylene terephthalate resin, (B) a phosphinic acid salt, (C) a phosphazene compound and (D) a nitrogenated cyclic compound, said resin composition being characterized in that the level of the flame retardancy as measured in accordance with a UL94 combustion test is V-0, the glow-wire ignition temperature (GWIT) as measured in accordance with IEC60695-2-13 standard is 775˚C or higher, the comparative tracking index (CTI) as measured in accordance with IEC60112 standard is 400 V or more, and bleed out does not occur when the resin composition is treated at 110˚C for 20 hours.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/16 - Nitrogen-containing compounds
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 5/5399 - Phosphorus bound to nitrogen

Abstract

To provide a polybutylene terephthalate resin composition for obtaining a molded body that has high flame retardancy and excellent mechanical characteristics. The present invention provides a polybutylene terephthalate resin composition which contains a polybutylene terephthalate, talc that serves as a flame retardant, a bromine-based flame retardant and an antimony-based flame retardant assistant. In this polybutylene terephthalate resin composition, the content of the talc that serves as a flame retardant is more than 1% by mass but less than 5% by mass relative to the total mass of the polybutylene terephthalate resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/20 - OxidesHydroxides
• C08K 3/34 - Silicon-containing compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

Provided is a resin molded body which has excellent flame retardance, weather resistance, shock resistance and tracking resistance. The resin molded body is composed of a thermoplastic resin composition comprising a thermoplastic resin, a polycarbonate, an elastomer, and a flame retardant. By adopting this combination of components, a Charpy impact value at 23° C. measured in conformity with ISO 179/1eA is 15 kJ/m2 or more and flame retardance measured under a condition of thickness of 1.0 mm and in conformity with UL94 is V-0 or more, and a resin molded body which can be used favorably outdoors is produced.

IPC Classes  ?

• C08K 3/22 - OxidesHydroxides of metals
• C08L 31/06 - Homopolymers or copolymers of esters of polycarboxylic acids
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Provided is a casing for electronic equipment providing both impact resistance and flame retardancy and further providing excellent low warpage. The casing for electronic equipment is constructed from a polybutylene terephthalate resin composition containing a polybutylene terephthalate resin (A), a modified polyethylene terephthalate resin (B), a halogen atom-free flame retardant (C), and an epoxy group-containing ethylene copolymer (D); the Charpy impact value measured in accordance with ISO-179 in this polybutylene terephthalate resin composition is 10 kJ/m2 or higher; and this polybutylene terephthalate resin composition produces a casing for electronic equipment that meets the 5VA standard in a thickness of 2 mm by a test method that accords with the UL 94 standard.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/49 - Phosphorus-containing compounds
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

Provided is a means for obtaining a poly(butylene terephthalate) resin composition that exhibits high fluidity when molten and excellent hydrolysis resistance. A carbodiimide compound (B) and a polyhydric hydroxyl group-containing compound (C) are added to a poly(butylene terephthalate) resin (A) having a terminal carboxyl group content of 30 meq/kg or lower. The polyhydric hydroxyl group-containing compound (C) that is used has a hydroxyl group value of 200 or higher. It is preferable for the poly(butylene terephthalate) resin (A) to have an intrinsic viscosity of 0.6 dL/g or higher.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds

Abstract

19-30 saturated aliphatic acyl groups, and n is an integer from 1 to 10.

IPC Classes  ?

• C08K 5/10 - EstersEther-esters
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 71/00 - Compositions of polyethers obtained by reactions forming an ether link in the main chainCompositions of derivatives of such polymers
• C08G 65/332 - Polymers modified by chemical after-treatment with organic compounds containing oxygen containing carboxyl groups, or halides or esters thereof

Abstract

To provide a case for electronic devices, which has a good balance between impact resistance and flame retardancy, while having excellent appearance. Produced is a case for electronic devices, which is configured of a polybutylene terephthalate resin composition that contains (A) a polybutylene terephthalate resin, (B) a modified polyethylene terephthalate resin, (C) a flame retardant that does not contain a halogen atom and (D) a thermoplastic polyester elastomer. The Charpy impact value of the polybutylene terephthalate resin composition as determined in accordance with ISO-179 is 7 kJ/m2 or more, and the polybutylene terephthalate resin composition meets 5VA standard by a test according to UL-94 standard.

IPC Classes  ?

• H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/49 - Phosphorus-containing compounds
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a technique for making it harder for VOCs including THF as well as other VOCs to be released from a molded article that is produced by molding a polybutylene terephthalate resin composition. A polybutylene terephthalate resin composition is used, which comprises a polybutylene terephthalate resin that is produced by a direct esterification method and an alkaline compound, said polybutylene terephthalate resin composition having such a property that the VOC emission amount from a molded article that is produced by molding the polybutylene terephthalate resin composition is 50 μgC/g or less as measured by a VOC measurement method defined in German Auto Industry Association (VDA) 277.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/098 - Metal salts of carboxylic acids

Abstract

The purpose of the present invention is to provide a resin composition which contains an aromatic polyester resin and has high hydrolysis resistance and high moldability at the same time. The present invention is a resin composition which contains: an aromatic polyester resin that has a terminal carboxyl group concentration of 30 equivalents/ton or less (component (A)); a cyclic carbodiimide compound that has at least two carbodiimide rings that have only one carbodiimide group in each ring (component (B)); and a polyvalent hydroxyl group-containing compound that has a hydroxyl number of 200 or more (component (C)).

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 5/053 - Polyhydroxylic alcohols
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds

Abstract

To provide a polybutylene terephthalate resin composition having excellent tracking resistance, mechanical strength, and low-hygroscopicity, and being flame-retarded by a non-halogen-containing flame retardant. A polybutylene terephthalate resin composition is prepared by compounding polyamide resin, an organic phosphorous flame retardant, and a nitrogen-containing flame retardant assistant into polybutylene terephthalate resin, wherein the content of the polyamide resin is not less than 1 part by mass and not more than 15 parts by mass to 100 parts by mass of the polybutylene terephthalate resin.

IPC Classes  ?

• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/00 - Use of organic ingredients
• C08L 77/02 - Polyamides derived from omega-amino carboxylic acids or from lactams thereof
• C08K 5/3492 - Triazines

Abstract

Provided is technology that causes polybutylene terephthalate resin to react with a reactive compound and reduces the thermal decomposition of the polybutylene terephthalate resin, when performing reactive processing using the polybutylene terephthalate resin. During production of polybutylene terephthalate resin pellets, the polybutylene terephthalate resin (A) and a reactive compound (B) that reacts with the polybutylene terephthalate resin (A) are reacted such that the difference between the intrinsic viscosity of a polybutylene terephthalate resin composition configuring the polybutylene terephthalate resin pellets and the intrinsic viscosity of a polybutylene terephthalate resin composition configuring a polybutylene terephthalate resin molded article is no more than 0.05 dL/g, and the amount of carboxylic group ends in the resin included in the polybutylene terephthalate resin pellets is adjusted so as to be no more than 25 meq/kg.

IPC Classes  ?

• C08G 63/91 - Polymers modified by chemical after-treatment
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a wind direction-controlling plate, which is obtained by molding a polybutylene terephthalate resin composition that has high fluidity when melted and which has excellent external appearance and mechanical properties. A wind direction-controlling plate is manufactured using a polybutylene terephthalate resin composition comprising polybutylene terephthalate resin, polyethylene terephthalate resin and glass fibers as starting material. The plate has a board shape in which the length in the long direction is two or more times the length in the short direction, has a thickness of 0.7 mm to 4 mm, and is obtained by injection molding the polybutylene terephthalate resin composition from an end in the long direction or a gate near same.

IPC Classes  ?

• B29C 45/27 - Sprue channels
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 3/34 - Silicon-containing compounds
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 7/14 - Glass
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a polybutylene terephthalate resin composition having significantly good flame-retardant characteristics, good mechanical properties, and good impact resistance (including not only impact resistance at room temperature but also impact resistance at low temperatures). In the present invention, a specific elastomer and a polycarbonate are mixed with polybutylene terephthalate to which a flame retardant has been mixed. The specific elastomer is a core-shell type elastomer in which the core is a styrene-butadiene rubber and the shell is an alkyl (meth)acrylate. In this polybutylene terephthalate resin composition, it is necessary to adjust the content of the core-shell type elastomer to be from 5 mass% or greater to 20 mass% or less.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Provided is a polybutylene terephthalate resin composition having good flame-retardant characteristics, good weather resistance, good heat resistance, and good impact resistance (including not only impact resistance at room temperature but also impact resistance at low temperatures). A specific elastomer and a polycarbonate are mixed with polybutylene terephthalate to which a flame retardant has been mixed. The specific elastomer is a glycidyl-group-containing vinyl copolymer, or a core-shell type elastomer in which the core is an acrylic rubber and the shell is a vinyl polymer.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

To provide a polybutylene terephthalate resin composition offering excellent flowability, wherein the resin composition raises the weld strength and heat shock resistance of a welded body obtained by welding together molded products obtained by molding the polybutylene terephthalate resin composition. [Solution] A polybutylene terephthalate resin composition constituted of a polybutylene terephthalate resin (A) having a weight-average molecular weight of 60,000-80,000 inclusive and an inorganic filler (B). Preferably, also included is 5-20 mass parts of an elastomer (C) relative to 100 mass parts of the polybutylene terephthalate resin (A).

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08L 21/00 - Compositions of unspecified rubbers

Abstract

Provided is an injection molding with excellent external appearance, low warping, heat resistance, and durability to heating and cooling. An injection molding for which (1) temperature of deflection under load according to ISO 75-1 is 165 - 220°C, (2) surface gloss at 45° by the JIS Z8741 testing method is 95 - 110, (3) the flatness of flat plates of 120 mm length, 120 mm width and 2 mm thickness with JIS B0021 is 0 - 2 mm, and (4) after tensile property evaluation test pieces molded according to ISO 3167 were heat-treated for ten days in a 150°C hot air oven and then treated for 24 hours at 23°C and 50% RH, stretch at break measured according to ISO 527-1, 2 is 1.5% or more.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 7/14 - Glass
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

Provided is a technology that can suppress the amount of formaldehyde discharge and the amount of acetaldehyde discharge from the molded body of a polybutylene terephthalate resin composition. A resin molded body is produced using as a starting material a polybutylene terephthalate resin composition containing a polybutylene terephthalate resin, and a nitrogen-containing compound having a ureide group. Allantoin is preferable as the nitrogen-containing compound having a ureide group. Also, in the resin molded body, there is preferably 0.04-0.4 mass% inclusive of the nitrogen-containing compound contained.

IPC Classes  ?

• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• B60R 13/02 - Trim mouldingsLedgesWall linersRoof liners
• C08K 5/13 - PhenolsPhenolates
• C08K 5/20 - Carboxylic acid amides
• C08K 5/3445 - Five-membered rings
• C08K 5/49 - Phosphorus-containing compounds
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a technology that can suppress the amount of discharge of acetaldehyde and formaldehyde. A resin molded body is produced with the starting material being a polybutylene terephthalate resin composition containing a polybutylene terephthalate resin and a basic compound. The basic compound preferably has a hydrazide group. Also, among basic compounds having a hydrazide group, preferably at least one compound selected from the group consisting of sebacic acid hydrazide, 1,4-cyclohexanedicarboxylic acid dihydrazide, 2,6-naphthoic acid dihydrazide, and 4-hydroxybenzoic acid hydrazide is used.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 5/25 - Carboxylic acid hydrazides

Abstract

Provided is a technology that can suppress the amount of acetaldehyde generated during the molding of a polybutylene terephthalate resin composition. A resin molded body is produced with the starting material being the polybutylene terephthalate resin composition, which contains a polybutylene terephthalate resin, a hindered phenol antioxidant, and a phosphorus-based stabilizer. Preferably, tetrakis[methylene-3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate]methane is used as the hindered phenol antioxidant, and bis(2,6-di-t-butyl-4-methylphenyl)pentaerythritol diphosphite or tetrakis(2,4-di-t-butylphenyl)-4,4'-biphenylene phosphonite is used as the phosphorus-based stabilizer.

IPC Classes  ?

• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 5/372 - Sulfides
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Provided is a resin molded body which has excellent flame retardance, weather resistance, shock resistance and tracking resistance. The resin molded body is composed of a thermoplastic resin composition comprising a thermoplastic resin, a polycarbonate, an elastomer, and a flame retardant. By adopting this combination of components, a Charpy impact value at 23°C measured in conformity with ISO 179/1eA is 15 kJ/m2 or more and flame retardance measured under a condition of thickness of 1.0 mm and in conformity with UL94 is V-0 or more, and a resin molded body which can be used favorably outdoors is produced.

IPC Classes  ?

• C08L 101/00 - Compositions of unspecified macromolecular 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 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity

Abstract

Provided is an insert-molded product provided with a resin member which exhibits excellent overall physical properties and has excellent heat shock resistance. An insert-molded product which is provided with both an insert member and a resin member, wherein the resin member is configured from a polybutylene terephthalate resin composition that comprises (A) a polybutylene terephthalate resin, (B) an elastomer, (C) a halogen flame retardant, and (D) an antimony compound selected from between antimony pentoxide or sodium antimonate.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/02 - Halogenated hydrocarbons

Abstract

Provided is an insert molded article provided with a resin member, which has superior heat shock resistance, flame resistance, and hydrolysis resistance, and an insert member. The insert molded article is provided with the insert member and resin member, and a polybutylene terephthalate resin composition in which a halogenated epoxy compound (B) having a specific molecular weight, an antimony oxide compound (C), and a carbodiimide compound (D) are mixed into a polybutylene terephthalate resin (A) is used for the starting material for the resin member. The specific molecular weight of component (B) is a number average molecular weight of 2,000 - 20,000.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/03 - Halogenated hydrocarbons aromatic
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08K 7/14 - Glass
• C08L 51/06 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• B29K 67/00 - Use of polyesters as moulding material

Abstract

Provided is an inorganic filler-reinforced polybutylene terephthalate resin composition functioning as a starting material for obtaining a resin molded product which is light weight and exhibits excellent hydrolysis resistance and excellent physical properties such as impact strength. Also provided is an injection molded product formed by injection molding the aforementioned resin composition. An inorganic filler-reinforced polybutylene terephthalate resin composition is obtained by combining a specific amount of a polybutylene terephthalate resin, a specific polyethylene resin, a specific reactive polymer and a glass-based inorganic filler. The aforementioned inorganic filler-reinforced polybutylene terephthalate resin composition is used as the starting material for producing a resin molded product.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08K 3/40 - Glass
• C08L 23/06 - Polyethene
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• B29K 105/06 - Condition, form or state of moulded material containing reinforcements, fillers or inserts

Abstract

Provided is a polybutylene terephthalate resin composition functioning as a starting material for obtaining a resin molded product which is light weight, exhibits excellent hydrolysis resistance and excellent physical properties such as impact strength, and is capable of maintaining excellent mechanical properties such as impact strength even at low temperatures. Also provided is an injection molded product formed by injection molding the aforementioned resin composition. A polybutylene terephthalate resin composition is obtained by combining a specific amount of polybutylene terephthalate resin, a specific polyethylene resin and a specific reactive polymer. The aforementioned polybutylene terephthalate resin composition is used as a starting material.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08L 23/06 - Polyethene
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins

Abstract

To provide a polybutylene terephthalate resin composition that excels in the anti-heat shock property, flame retardation and hydrolysis resistance. A polybutylene terephthalate resin composition is prepared by combining a halogenated benzylacrylate compound, an antimony oxide compound and a carbodiimide compound with the polybutylene terephthalate resin. The content of the carbodiimide compound may be an amount that makes the amount of the carbodiimide functional group to be at least 0.3 equivalents and no more than 5.0 equivalents, when the terminal carboxyl equivalent of the polybutylene terephthalate is set as 1.

IPC Classes  ?

• 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 13/02 - Organic and inorganic ingredients

Abstract

Provided is a polybutylene terephthalate resin composition which has excellent mold release properties and which can suppress deterioration in molding stability and aggregation of the polybutylene terephthalate resin composition caused by seepage of a mold release agent, and also provides a pellet of this polybutylene terephthalate resin composition. The polybutylene terephthalate resin composition contains not less than 0.01 parts by mass and not more than 5.0 parts by mass of (B) a saturated fatty acid ester of a polyglycerol represented by formula (I) relative to 100 parts by mass of (A) a polybutylene terephthalate resin. (In formula (I), the R1 groups may be the same or different and are each a saturated aliphatic acyl group having not fewer than 19 and not more than 30 carbon atoms, and n is an integer not lower than 1 and not higher than 10.)

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols

Abstract

Provided are: a method for producing a polybutylene terephthalate resin composition which is capable of providing a molded body obtained therefrom with excellent physical properties such as excellent mechanical strength, while stably maintaining high fluidity when melted; and a polybutylene terephthalate resin composition for molding. Specifically, after melting a mixture that contains (A) a polybutylene terephthalate resin and (B) a polyvalent hydroxyl group-containing compound, (C) a phosphorus compound is added thereto. It is preferable to use a glycerol fatty acid ester or an ether that is obtained through an addition reaction of an alkylene oxide to diglycerol as (B) a polyvalent hydroxyl group-containing compound.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/06 - EthersAcetalsKetalsOrtho-esters
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols

Abstract

The present invention improves injection moldability of an inorganic filler-reinforced polybutylene terephthalate resin composition that contains a polybutylene terephthalate resin and a polylactic acid resin, while improving the mechanical properties and hydrolysis resistance thereof. Disclosed is an inorganic filler-reinforced polybutylene terephthalate resin composition which is composed of 5-100 parts by weight of (B) a polylactic acid resin, 0.003-5 parts by weight of (C) boron nitride, 0.1-10 parts by weight of (D) at least one compound that is selected from among fatty acid ester wax and polyolefin wax, 0.1-10 parts by weight of (E) a specific vinyl copolymer that has a glycidyl group and 3-200 parts by weight of (F) a glass-based inorganic filler per 100 parts by weight of (A) a polybutylene terephthalate resin. The inorganic filler-reinforced polybutylene terephthalate resin composition has a weight ratio of (C) boron nitride to (E) a vinyl copolymer that has a glycidyl group of 0.03-1, and a melt viscosity as measured at a temperature of 260˚C and a shear rate of 1,216 s-1 in accordance of ISO 11443 of 100-300 Pa·s.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/38 - Boron-containing compounds
• C08K 3/40 - Glass
• C08K 5/10 - EstersEther-esters
• 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 63/08 - Epoxidised polymerised polyenes
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
• C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable

Abstract

Provided is an integrally molded article in which a molded resin article containing a phosphorus compound is used and an addition-reactive silicone adhesive agent is used to achieve strong bonding. The integrally molded article comprises a molded article, an addition-reactive silicone composition and a member, wherein the molded article comprises a thermoplastic resin composition comprising a poly(butylene terephthalate) resin and a phosphorus compound and contains the phosphorus compound in an amount of 0.5 mass% or less, and wherein the thermoplastic resin molded article and the addition-reactive silicone composition are brought into contact with each other to form the integrally molded article. The phosphorus compound to be used is preferably a trivalent phosphorous compound.

IPC Classes  ?

• C08J 5/12 - Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
• B32B 27/36 - Layered products essentially comprising synthetic resin comprising polyesters
• C08K 5/49 - Phosphorus-containing compounds
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

The present invention provides a polybutylene terephthalate resin film having excellent resistance to hydrolysis and excellent flame retardancy, which is particularly suited for use in a back sheet film for a solar cell module. The film comprises a composition containing a polybutylene terephthalate resin (A), a brominated flame retardant (B) having a bisphenol A skeleton in the main chain thereof, and an antimony compound (C). The bromine content of the brominated flame retardant (B) having the bisphenol A skeleton in the main chain thereof is 8-30 parts by weight per 100 parts by weight of the polybutylene terephthalate resin (A), and the VTM flame retardancy of the film according to UL94 is VTM-0.

IPC Classes  ?

• C08J 5/18 - Manufacture of films or sheets
• C08K 3/10 - Metal compounds
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• H01L 31/042 - PV modules or arrays of single PV cells
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Disclosed are: a polybutylene terephthalate resin composition which is capable of providing a metal composite component by molding even in cases where the mold temperature is 100˚C or less, said metal composite component having excellent flame retardancy and excellent adhesion between a metal component and the polybutylene terephthalate resin composition; and a method for producing a metal composite component. Also disclosed is a metal composite component which has excellent flame retardancy and excellent adhesion between a metal component and a polybutylene terephthalate resin composition. Specifically, a metal composite component is produced by blending a specific amount of a polyethylene terephthalate resin and a specific amount of a phosphorus flame retardant into a polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 5/3492 - Triazines
• C08K 5/51 - Phosphorus bound to oxygen
• 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

Abstract

Disclosed is a technique for improving the adhesiveness of a resin molded article comprising a polyalkylene terephthalate resin to a silicone-based adhesive. A polyalkylene terephthalate resin which is obtained by copolymerizing an aromatic dicarboxylic acid excluding terephthalic acid and/or an esterified product thereof as a modifying component and contains the modifying component in an amount of 13-35 mol% inclusive with respective to the total amount of dicarboxylic acid components is used. It is preferred that the modified polyalkylene terephthalate resin is a modified polybutylene terephthalate resin, and the aromatic dicarboxylic acid and/or an esterified product thereof is isophthalic acid and/or an esterified product thereof.

IPC Classes  ?

• C08G 63/183 - Terephthalic acids

Abstract

Disclosed is a technique for improving the adhesiveness of a resin molded article comprising a polyalkylene terephthalate resin to a silicone-based adhesive. A mixture of (A) a modified polyalkylene terephthalate resin obtained by copolymerizing an aromatic dicarboxylic acid excluding terephthalic acid and/or an esterified product thereof as a modifying component and (B) an unmodified polyalkylene terephthalate resin, in which the content of the modifying component is adjusted in a specific range, is used. It is preferred that the modified polyalkylene terephthalate resin is a modified polybutylene terephthalate resin, and the aromatic dicarboxylic acid and/or an esterified product thereof is isophthalic acid and/or an esterified product thereof.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Disclosed are: a polybutylene terephthalate resin composition which is capable of providing a metal composite component having excellent adhesion between a metal component and the polybutylene terephthalate resin composition even in cases where the mold temperature is 100˚C or less; and a method for producing a metal composite component. Also disclosed is a metal composite component which has excellent adhesion between a metal component and a polybutylene terephthalate resin composition. Specifically, a metal composite component is produced by blending a specific amount of a polyethylene terephthalate resin, which is modified by a dicarbonyl unit other than a terephthaolyl unit, into a polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/3492 - Triazines
• C08K 5/51 - Phosphorus bound to oxygen
• 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

Abstract

Disclosed is a polybutylene terephthalate resin composition that is highly resistant to tracking, has excellent mechanical strength, exhibits low moisture absorption, and is made flame-retardant by a non-halogen-containing flame retardant. Said polybutylene terephthalate resin composition is prepared by mixing an organic phosphorus flame retardant, a nitrogen-containing auxiliary flame retardant, and 1 to 15 mass parts of a polyamide resin into 100 mass parts of a polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/49 - Phosphorus-containing compounds
• C08L 77/00 - Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chainCompositions of derivatives of such polymers

Abstract

Provided is a polybutylene terephthalate resin composition which has excellent tracking resistance, mechanical properties, and molding stability, and which has been treated with a halogen-free flame retarder to become flame retardant. A polylactic acid resin, organosphosphorus flame retarder, and nitrogen-containing auxiliary flame retarder are added to a polybutylene terephthalate resin to prepare a polybutylene terephthalate resin composition having a polylactic acid resin content of 1 to 200 parts by mass per 100 parts by mass of polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 5/3492 - Triazines
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones

Abstract

Disclosed is a polybutylene terephthalate resin composition, which has excellent slidability and flame retardancy, and with which the generation of sliding noise is suppressed by decreasing the elastic modulus thereof. The polybutylene terephthalate resin composition comprises a polyester elastomer, an unsaturated carboxylic acid-modified polyolefin polymer, a halogenated organic flame retardant, an antimony compound, and an ester derivative of a fatty acid having 12 or more carbon atoms. The content of the polyester elastomer is set to 25 parts by mass or more but 50 parts by mass or less of the total amount (100 parts by mass) of a polybutylene terephthalate resin and the polyester elastomer. Further, the content of the polyester elastomer is set to 27% by mass or less of the total amount of the polybutylene terephthalate resin composition.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 13/02 - Organic and inorganic ingredients

Abstract

Provided is a polybutylene terephthalate resin composition having excellent heat shock resistance, flame retardancy, and hydrolysis resistance. Also provided is an insert molded product having excellent heat shock resistance, which is formed by insert molding of the resin composition and a metal or inorganic solid. The polybutylene terephthalate resin composition is prepared by adding a halogenated benzyl acrylate compound, antimony oxide compound, and carbodiimide compound to a polybutylene terephthalate resin. The carbodiimide compound content should be an amount such that the amount of carbodiimide functional groups is 0.3 to 5.0 equivalents with respect to 1 terminal carboxyl equivalent in the polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/22 - OxidesHydroxides of metals
• C08K 5/10 - EstersEther-esters
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds

Abstract

The present invention provides a polybutylene terephthalate resin composition, having performance of high durability and the like in a cold cycle environment, and having high strength. Specifically, relative to 100 parts by weight of a polybutylene terephthalate resin (A) having 30 meq/kg or less of the amount of terminal carboxyl groups, there are added a carbodiimide compound (B) in an amount of 0.3 to 1.5 equivalents of the carbodiimide functional group when the amount of carboxyl terminal group in the polybutylene terephthalate resin (A) is set as 1, 20 to 100 parts by weight of a fibrous filler (C), and 5 to 15 parts by weight of an elastomer (D).

IPC Classes  ?

• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds

Abstract

The present invention provides a polybutylene terephthalate resin composition which does not induce swelling and bleeding of elastomer component caused by an organic solvent such as fuel, having performance of a high durability and the like in a cold cycle environment, and having an excellent resistance to hydrolysis. Specifically, relative to 100 parts by weight of a polybutylene terephthalate resin (A) having 30 meq/kg or less of the amount of terminal carboxyl groups, there are added a carbodiimide compound (B) in an amount of 0.3 to 1.5 equivalents of the carbodiimide functional group when the amount of carboxyl terminal group in the polybutylene terephthalate resin (A) is set as 1, and 20 to 100 parts by weight of a fibrous filler (C).

IPC Classes  ?

• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• C08K 3/40 - Glass
• C08K 7/02 - Fibres or whiskers
• C08K 7/14 - Glass

Abstract

Provided is a molded article for electric-vehicle parts which comprises a thermoplastic polyester resin composition having excellent hydrolytic resistance, electrical insulation properties, flame retardancy, and tracking resistance. The molded article for electric-vehicle parts is obtained by molding a thermoplastic polyester resin composition characterized in that the composition comprises a thermoplastic polyester resin having a terminal carboxy group content of 30 meq/kg or lower and a flame retardant, that the tracking resistance thereof as measured in accordance with IEC 112 version 3 after a 200-hour pressure/heat treatment with 120ºC saturated water vapor is 500 V or more, and that the volume resistivity thereof as determined after a 200-hour pressure/heat treatment with 120ºC saturated water vapor is 1×1015 Ω∙m or higher.

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
• B65D 1/00 - Rigid or semi-rigid containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material or by deep-drawing operations performed on sheet material
• B65D 85/68 - Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
• C08K 3/34 - Silicon-containing compounds
• C08K 5/1515 - Three-membered rings
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• C08K 5/3477 - Six-membered rings
• C08K 5/51 - Phosphorus bound to oxygen
• C08K 5/53 - Phosphorus bound to oxygen bound to oxygen and to carbon only
• C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Disclosed is a polybutylene terephthalate resin material which has excellent durability under temperature cycle conditions, while maintaining high welding strength when the integration is carried out by heat welding. Specifically disclosed is a polybutylene terephthalate resin composition for welding, which is obtained by blending, per 100 parts by weight of (A) a polybutylene terephthalate resin having a terminal carboxyl group amount of not more than 30 meq/kg, (B) a carbodiimide compound in such an amount that the carbodiimide functional group amount is equal to 0.3-1.5 equivalent when the terminal carboxyl group amount of the polybutylene terephthalate resin is taken as 1 equivalent, and (C) 0-15 parts by weight of an elastomer.

IPC Classes  ?

• 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 3/00 - Use of inorganic substances as compounding ingredients
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups

Abstract

Disclosed is a polybutylene terephthalate resin material having excellent hydrolysis resistance, wherein a polymer rarely deteriorates and fish-eyes are reduced.  The polybutylene terephthalate resin material is suitable for use in a film, particularly in a backsheet film for solar cell modules.  Specifically disclosed is a polybutylene terephthalate resin mixture for producing films, which is obtained by mixing (B) a carbodiimide compound, which is in the form of powder, granules or a master batch, into (A) a polybutylene terephthalate resin having a terminal carboxyl group amount of not more than 20 meq/kg and an intrinsic viscosity of not less than 0.9 dL/g.

IPC Classes  ?

• 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
• C08J 5/18 - Manufacture of films or sheets
• C08K 5/29 - Compounds containing carbon-to-nitrogen double bonds
• H01L 31/042 - PV modules or arrays of single PV cells

Abstract

Provided is a polybutylene terephthalate resin composition having both low warpage and high durability in hot/cold cycle environments.  In (A) 100 parts by weight of polybutylene terephthalate resin having not more than 30 meq/kg of terminal carboxyl groups, there are compounded: (B) carbodiimide compound in an amount of 0.3 to 2 equivalents of carbodiimide functional group per terminal carboxyl group of the polybutylene terephthalate resin (A), (C) 20 to 100 parts by weight of fibrous filler, and (D) 15 to 65 parts by weight of one or more type of thermoplastic resin selected from among the polycarbonate and polyethylene terephthalate resins.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

Provided is a polybutylene terephthalate resin composition displaying no swelling or permeation of the elastomer component with organic solvents such as fuel and having performance such as high durability in hot/cold cycle environments along with excellent resistance to hydrolysis.  In (A) 100 parts by weight of polybutylene terephthalate resin having not more than 30 meq/kg of terminal carboxyl groups, there are compounded: (B) carbodiimide compound in an amount of 0.3 to 1.5 equivalents of carbodiimide functional group per terminal carboxyl group of the polybutylene terephthalate resin (A), and (C) 20 to 100 parts by weight of fibrous filler.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

Provided is a polybutylene terephthalate resin composition having performance such as high durability in hot/cold cycle environments along with high strength.  In (A) 100 parts by weight of polybutylene terephthalate resin having not more than 30 meq/kg of terminal carboxyl groups, there are compounded: (B) carbodiimide compound in an amount of 0.3 to 1.5 equivalents of carbodiimide functional group per terminal carboxyl group of the polybutylene terephthalate resin (A), (C) 20 to 100 parts by weight of fibrous filler, and (D) 5 to 15 parts by weight of elastomer.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

Disclosed is a flame-retardant resin composition exhibiting high heat resistance and flame retardancy, while having excellent workability and excellent flexibility or toughness. The flame-retardant resin composition is particularly useful for coating electrical wires and the like. Specifically, the flame-retardant resin composition contains, per 100 parts by weight of (A) a polybutylene terephthalate resin, 25-150 parts by weight of (B) a thermoplastic polyester elastomer, 5-40 parts by weight of (C) at least one phosphinic acid having an average particle diameter of not more than 10 &mgr;m which is selected from phosphinates, diphosphinates and polymerized products of phosphinates or diphosphinates, 0.5-20 parts by weight of (D) an epoxy compound and 0.1-5 parts by weight of (E) an antioxidant. The antioxidant (E) contains a phenolic antioxidant (e-1) as an essential ingredient, while additionally containing at least one antioxidant selected from a phosphite antioxidant (e-2), a phosphonite antioxidant (e-3) and a thioether antioxidant (e-4).

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 5/13 - PhenolsPhenolates
• C08K 5/372 - Sulfides
• C08K 5/524 - Esters of phosphorous acids, e.g. of H3PO3
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
• C08L 79/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups
• H01B 3/28 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
• H01B 3/42 - Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes polyesters, polyethers, polyacetal
• H01B 7/42 - Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction

Abstract

Disclosed is a polybutylene terephthalate resin composition having a good balance between performances such as high durability in thermal cycle environments and adhesion to addition reaction-curable silicone rubbers. Specifically disclosed is a polybutylene terephthalate resin composition obtained by blending 100 parts by weight of (A) a polybutylene terephthalate resin with 5-30 parts by weight of (B) a styrene thermoplastic elastomer having a styrene content of not more than 40% by weight, and 20-100 parts by weight of (C) glass fibers. The polybutylene terephthalate resin composition has excellent adhesion to addition reaction-curable silicone rubbers.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 45/00 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor
• 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
• C08K 7/14 - Glass
• 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

Abstract

Disclosed is a polybutylene terephthalate resin/metal composite molded body having sufficient adhesion strength, which can be molded at a mold temperature of not more than 100˚C. Specifically disclosed is a composite molded body wherein a polybutylene terephthalate resin composition or a modified polybutylene terephthalate resin composition, and a metal (layer) having a surface subjected to a fine roughening treatment are integrally bonded together. The polybutylene terephthalate resin composition contains a fibrous reinforcing agent and a thermoplastic elastomer, while the modified polybutylene terephthalate resin composition contains a modified polybutylene terephthalate resin, which is composed of a polybutylene terephthalate/isophthalic acid copolymer containing 3-50% by mole of an isophthalic acid component relative to the total dicarboxylic acid components, and a fibrous reinforcing agent.

IPC Classes  ?

• 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
• 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
• C08K 7/14 - Glass
• C08L 21/00 - Compositions of unspecified rubbers
• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

Abstract

Disclosed is a polybutylene terephthalate resin composition exhibiting excellent mechanical strength and impact strength, while having improved fluidity (melt fluidity). The polybutylene terephthalate resin composition hardly suffers from warping deformation. Specifically disclosed is a polybutylene terephthalate resin composition which is obtained by blending, per 100 parts by weight of a polybutylene terephthalate resin (A), 40-140 parts by weight of glass fibers (B) having a flat cross section and 0.05-5 parts by weight of a glycerol fatty acid ester (C) which is composed of glycerol and/or a dehydration condensation product thereof and a fatty acid having 12 or more carbon atoms and has a hydroxyl number as measured by the process mentioned in the description of not less than 200.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients

Abstract

Disclosed is a polybutylene terephthalate resin composition having a good balance between performances such as high durability in a thermal cycle environment and adhesion to silicone rubbers. Specifically disclosed is a polybutylene terephthalate resin composition having excellent adhesion to silicone rubbers, which is obtained by blending (B) 5-30 parts by weight of a core-shell polymer particles having core layers composed of an acrylic rubber and an average particle diameter of not less than 2 騜m and (C) 20-100 parts by weight of glass fibers into (A) 100 parts by weight of a polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• 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
• C08K 7/14 - Glass
• 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
• B29K 19/00 - Use of rubber not provided for in a single one of main groups , as moulding material
• B29K 67/00 - Use of polyesters as moulding material
• B29K 103/04 - Inorganic materials
• B29K 105/22 - Inserts metallic

Abstract

Provided is a mobile terminal part formed from a polybutylene-telephtalate resin composition having excellent properties such as a mechanical strength and a shock resistance and causing little shrinkage or warp deformation. More specifically, the polybutylene-telephtalate resin composition is prepared by mixing [A] 100 % by weight of denaturated polyethylene-telephtalate resin and [B] 40 to 140 % by weight of glass fiber having a flat cross sectional shape.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 7/14 - Glass
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus Details

Abstract

Disclosed is a polybutylene terephthalate resin composition which is free from problems such as bleeding and improved in fluidity (melt fluidity), while maintaining characteristics such as mechanical strength and toughness. Specifically disclosed is a polybutylene terephthalate resin composition wherein 0.05-5 parts by weight of a glycerin fatty acid ester (C), which is composed of glycerin and/or a dehydration condensation product thereof and a fatty acid having 12 or more carbon atoms and has a hydroxyl number of not less than 200 as measured by a method mentioned in the description, is blended per 100 parts by weight of a composition which is composed of 50-90% by weight of a polybutylene terephthalate resin (A) and 10-50% by weight of an inorganic filler (B).

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 5/053 - Polyhydroxylic alcohols
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 7/14 - Glass

Abstract

Disclosed is a laser-transmitting resin molded article which comprises a polyester resin as a base material and has both of a laser-weldable property (a laser-transmitting property) and flame retardancy at high levels. The molded article is formed from a resin composition comprising a polyester resin (A) (e.g., a PBT resin), at least one bromine-containing compound (B) selected from a brominated (meth)acrylate resin, a brominated styrene resin, a brominated polycarbonate resin and a brominated epoxy resin, and an antimony oxide (C) having an average particle diameter of 2 to 10 &mgr;m. The molded article has an excellent laser-transmitting property and excellent flame retardancy, and may have a laser beam transmissivity of 20% or more as measured at a thickness of 1 mm and a flame retardancy evaluation rating of V-0 as measured in accordance with UL94 standard at a thickness of 0.8 mm. The resin composition may further comprise a filler, a fluorine-containing resin, a polycarbonate resin, a phosphorus compound and/or a crystallization nucleating agent.

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
• B29C 65/16 - Laser beam
• C08J 5/00 - Manufacture of articles or shaped materials containing macromolecular substances
• C08K 3/22 - OxidesHydroxides of metals

Abstract

A flame-retardant resin composition comprises 25 to 150 parts by weight of (B) a thermoplastic polyester1 elastomer, 5 to 40 parts by weight of (C) a phosphinic acid compound comprising a salt of at least one member selected from the group consisting of a phosphinic acid, a diphosphinic acid, and a polymerized product thereof, and 0.5 to 20 parts by weight of (D) an epoxy compound, relative to 100 parts by weight of (A) a polybutylene terephthalate-series resin. Such a flame-retardant resin composition is useful for various molded products and for covering the surface of an electric wire, or the like. The present invention provides a halogen-free flame-retardant resin composition which has a high heat resistance and a high flame retardancy and is excellent in hydrolysis resistance, abrasion resistance, and moldability (e.g., extrusion properties).

IPC Classes  ?

• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• H01B 7/00 - Insulated conductors or cables characterised by their form

Abstract

Disclosed is a polybutylene terephthalate resin composition having excellent toughness and adequate mechanical strength, while exhibiting excellent fluidity during melt molding. Specifically disclosed is a polybutylene terephthalate resin composition obtained by adding 0.01-5 parts by weight of an acrylic oligomer (C) to the total 100 parts by weight of 50-99 parts by weight of a polybutylene terephthalate resin (A) and 1-50 parts by weight of a thermoplastic elastomer (B).

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 101/00 - Compositions of unspecified macromolecular compounds

Abstract

Disclosed is a polybutylene terephthalate resin composition for laser welding, which is high in laser weldability, welding strength and heat shock resistance. Specifically disclosed is a PBT resin composition for laser welding, which is composed of a polybutylene terephthalate resin (A), a core-shell polymer (B) (for example, a core-shell polymer having a core layer of an acrylic rubber), and additionally if necessary, a filler or reinforcing agent (C) such as a glass fiber, and a polycarbonate resin. In this resin composition, the core-shell polymer (B) may usually have an average particle diameter of not less than 2 &mgr;m.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
• C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates

Abstract

Disclosed is a polybutylene terephthalate resin composition for an insulating part, which satisfies the GWIT requirements at a thickness of 0.75 to 3 mmt which has been difficult to achieve previously. Specifically, the composition comprises (A) 100 parts by weight of polybutylene terephthalate resin, (B) 5 to 50 parts by weight of a halogen-containing flame retardant, (C) 5 to 50 parts by weight of an auxiliary flame retardant, (D) 1 to 100 parts by weight of a nitrogen-containing compound, and (E) 0 to 200 parts by weight of a fibrous reinforcing agent.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 3/04 - Carbon

Abstract

A flame-retardant PBT resin composition giving a molded part, especially a thin-walled molded article, which is usable as an insulating material satisfying the IEC 60695-2 standards without necessitating secondary processing. A hundred parts by weight of (A) a polybutylene terephthalate resin is compounded with 5-50 parts by weight of (B) a halogenated flame retardant, 5-40 parts by weight of (C) a flame retardant aid, 5-100 parts by weight of (D) a liquid-crystalline polymer, and 0-200 parts by weight of (E) an inorganic filler.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 13/02 - Organic and inorganic ingredients
• C08L 101/12 - Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity

Abstract

Disclosed is a flame-retardant resin composition (for a transmission side member) for laser welding, which is composed of a polyester resin (A) and at least one phosphinic acid material (B) selected from phosphinates, diphosphinates and polymerized products of them (preferably a metal salt or the like). The laser light transmittance of a molded article of such a resin composition may be not less than 15% when the molded article has a thickness of 2 mm. The resin composition may further contain a fluorine-containing resin, a nitrogen-containing flame retardant (such as a triazine compound and cyanuric acid and/or isocyanuric acid and a salt), and/or a filler (glass fibers or the like). This resin composition enables to attain both high level of laser welding performance (laser transmission) and high flame retardance.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• B29C 65/16 - Laser beam
• C08K 5/00 - Use of organic ingredients
• C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
• C08K 13/02 - Organic and inorganic ingredients
• B29K 67/00 - Use of polyesters as moulding material

Abstract

Disclosed is a resin composition having excellent low warping property wherein a polybutylene terephthalate resin is provided with flame retardancy by a halogen-free flame retardant without deteriorating its excellent moldability and various characteristics (such as mechanical characteristics, electrical characteristics and long-term environmental characteristics). Specifically disclosed is a resin composition wherein (B) 10-100 parts by weight of one or more polymer compounds selected from modified polyesters and styrene resins, (C) 10-100 parts by weight of a specific phosphinate and/or a diphosphinate and/or a polymer thereof, and (D) 20-200 parts by weight of glass fibers having an average cross-sectional area of 100-300 square micrometer are blended per (A) 100 parts by weight of a polybutylene terephthalate resin.

IPC Classes  ?

• C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
• C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients