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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10100190 B1

PDFFull Text
Date of Patent:
Oct. 16, 2018

Filed:

Jan. 29, 2015

Thermoplastic resin composition

Applicant:

Toray Industries, Inc., Tokyo, JP;

Inventors:

Taku Shimozawa, Ichihara, JP;

Masafumi Koyama, Tokyo, JP;

Kosuke Shirotani, Ichihara, JP;

Assignee:

TORAY INDUSTRIES, INC., Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch LLP

Primary Examiner:

Arrie L Reuther

Int. Cl.
CPC ...
C08L 51/04 (2006.01); C08F 265/06 (2006.01); C08L 25/12 (2006.01); C08F 265/04 (2006.01); C08J 5/00 (2006.01); C08L 33/26 (2006.01);
U.S. Cl.
CPC ...
C08L 51/04 (2013.01); C08F 265/04 (2013.01); C08F 265/06 (2013.01); C08J 5/00 (2013.01); C08L 25/12 (2013.01); C08L 33/26 (2013.01); C08J 2333/26 (2013.01); C08J 2351/04 (2013.01); C08J 2433/26 (2013.01); C08J 2451/04 (2013.01); C08L 2201/02 (2013.01); C08L 2201/08 (2013.01); C08L 2203/20 (2013.01); C08L 2205/03 (2013.01); C08L 2207/04 (2013.01);
Abstract

A thermoplastic resin composition comprising a graft copolymer (I) which is produced by carrying out the graft polymerization of a monomer mixture (B) comprising an aromatic vinyl monomer and a vinyl cyanide monomer in the presence of an acrylic rubbery polymer (A) and a vinyl copolymer (II) which is produced by carrying out the copolymerization of an aromatic vinyl monomer with a vinyl cyanide monomer, wherein the ratio of the content of the former copolymer to that of the latter copolymer is (30 to 70 parts by weight):(70 to 30 parts by weight), the graft copolymer (I) has such a property that the ratio (i.e., (α)/(β)) of the gel swelling degree (α) of the acrylic rubbery polymer (A) in toluene to the grafting ratio (β) of the graft copolymer (I) is 0.4 to 2.0, and the thermoplastic resin composition has such a structure that particles of the graft copolymer (I) are aggregated in the thermoplastic resin composition. From the thermoplastic resin composition, a molded article having excellent fluidability, weather resistance and impact resistance can be produced.

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