Abstract:
Disclosed are: a polyalkylene terephthalate resin composition comprising (A) a polyalkylene terephthalate resin and (B) an acrylic-based core-shell polymer which has an average particle size of 2 μm or greater and in which an amount of the core layer component is more than 80% by mass but less than 100% by mass relative to a total mass of the core layer component and a shell layer component; and a molded article which is obtained by molding the polyalkylene terephthalate resin composition.
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).
Abstract:
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 is part of a molded article having a lightness L* value of 80 or higher as measured using a color difference meter, and 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.
Abstract:
Disclosed are: a polyalkylene terephthalate resin composition comprising (A) a polyalkylene terephthalate resin and (B) an acrylic-based core-shell polymer which has an average particle size of 2 μm or greater and in which an amount of the core layer component is more than 80% by mass but less than 100% by mass relative to a total mass of the core layer component and a shell layer component; and a molded article which is obtained by molding the polyalkylene terephthalate resin composition.
Abstract:
A polybutylene terephthalate resin composition containing a polybutylene terephthalate resin, a silicone-based compound having a kinematic viscosity at 25° C. of 1,000 to 10,000 cSt in an amount of 0.5 to 1.8% by mass of the total mass of the polybutylene terephthalate resin composition, and an olefin-based elastomer in an amount of 5 to 20% by mass of the total mass of the polybutylene terephthalate resin composition.
Abstract:
A resin composition including an aromatic polyester resin and having high levels of hydrolysis resistance and moldability is provided. The resin composition includes an aromatic polyester resin having a terminal carboxyl group content of not more than 30 eq/ton (component A), a cyclic carbodiimide compound having at least two carbodiimide rings, each having only one carbodiimide group (component B), and a polyvalent hydroxyl group-containing compound having a hydroxyl value of not less than 200 (component C).
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.
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).
Abstract:
A resin composition including an aromatic polyester resin and having high levels of hydrolysis resistance and moldability is provided. The resin composition includes an aromatic polyester resin having a terminal carboxyl group content of not more than 30 eq/ton (component A), a cyclic carbodiimide compound having at least two carbodiimide rings, each having only one carbodiimide group (component B), and a polyvalent hydroxyl group-containing compound having a hydroxyl value of not less than 200 (component C).
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).