Toray Industries, Inc.

Kenichi Okunaga

Hideyuki Umetsu

Hideki Matsumoto

Makito Yokoe

Kei Saitoh

Yusuke Tojo

Takeshi Unohara

Masaru Akita

Atsushi Masunaga

Shingo Nishida

A thermoplastic polyester resin composition includes a thermoplastic polyester resin (A), an epoxy compound (B) having an epoxy equivalent of from 200 to 3,000 g/eq, and a hydroxy group-containing resin (C) having a number average molecular weight of from 2,000 to 500,000 and a halogen element content of 1,000 ppm or less, wherein the epoxy compound (B) is blended in an amount of from 0.05 to 10 parts by weight with respect to 100 parts by weight in total of 70 to 99.9 parts by weight of the thermoplastic polyester resin (A) and 0.1 to 30 parts by weight of the hydroxy group-containing resin (C). The thermoplastic resin composition and a molded article achieve both long-term hydrolysis resistance and heat aging resistance at a high level, and can further suppress bleed-out to the surface of the molded article during heat-dry and heat-moisture treatments.

Thermoplastic polyester resin composition and molded article

A polyarylene sulfide resin composition includes: (A) a polyarylene sulfide resin having a carboxyl group content of more than 100 &#x3bc;mol/g and less than 400 &#x3bc;mol/g, and also having a weight average molecular weight of 10,000 or more and less than 100,000; and (B) a filler. The polyarylene sulfide resin composition has improved mechanical properties and chemical resistance while maintaining intrinsic high melting point of a polyarylene sulfide.

Polyarylene sulfide resin composition

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Nagoya, Japan

Kenichi Okunaga