Mitsubishi Rayon Company, Limited

Misayo Suehiro

Naoki Yamamoto

Hiroshi Mori

Akira Nakata

A thermoplastic resin composition comprising: (A) at least one resin selected from the group consisting of a polyester resin and a polycarbonate resin, and (B) an aromatic polyester-polyorganosiloxane block copolymer, a weight ratio of (A) to (B) (=A/B) being 10/90 to 90/10. With the addition of the copolymer (B), impact strength of the composition can be improved without impairing the properties of the resin (A).

Thermoplastic resin composition

A thermoplastic resin composition comprising: (A) at least one resin selected from the group consisting of a polyester resin and a polycarbonate resin, and (B) an aromatic polyester-polyorganosiloxane block copolymer, a weight ratio of (A) and (B) (=A/B) being 10/90 to 90/10. With the addition of the copolymer (B), impact strength of the composition can be improved without impairing the properties of the resin (A).

There is disclosed a thermoplastic resin composition comprising a polyether imide resin (A) and an aromatic polyester-polyorganosiloxane block copolymer (B), the weight ratio of A to B (A/B) being 1/9 to 9/1.

An aromatic polyester-polyorganosiloxane block copolymer comprising a polyester segment consisting essentially of:

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Hiroshima, Japan

Misayo Suehiro