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.:
Date of Patent:
Aug. 07, 2018
Filed:
Dec. 24, 2014
Applicant:
Toray Industries, Inc., Tokyo, JP;
Inventors:
Kohei Yamashita, Nagoya, JP;
Takeshi Unohara, Nagoya, JP;
Kosaku Takeuchi, Otsu, JP;
Daisuke Yamamoto, Nagoya, JP;
Koji Yamauchi, Nagoya, JP;
Assignee:
TORAY INDUSTRIES, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J 9/26 (2006.01); C08G 81/00 (2006.01); C08L 81/04 (2006.01); C08G 75/0204 (2016.01); C08G 75/0259 (2016.01); C08G 75/0286 (2016.01);
U.S. Cl.
CPC ...
C08G 81/00 (2013.01); C08G 75/0204 (2013.01); C08G 75/0259 (2013.01); C08G 75/0286 (2013.01); C08J 9/26 (2013.01); C08L 81/04 (2013.01); C08J 2201/046 (2013.01); C08J 2381/02 (2013.01); C08J 2381/04 (2013.01);
Abstract
A heat-resistant, chemical-resistant polyphenylene sulfide block copolymer containing polyphenylene sulfide units and aromatic polyester units, wherein the polyphenylene sulfide units have a number average molecular weight in the range of 6,000 to 100,000. Provided is a polyphenylene sulfide block copolymer that overcomes the disadvantages of block copolymers including a low-molecular-weight polyphenylene sulfide segment and having poor heat resistance and chemical resistance.