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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 10774199 B1

PDFFull Text
Expired
Date of Patent:
Sep. 15, 2020

Filed:

Dec. 07, 2016

Additive for rubber

Applicant:

Sumitomo Seika Chemicals Co., Ltd., Kako-gun, Hyogo, JP;

Inventors:

Shinya Murakami, Kako-gun, JP;

Hideaki Nishiguchi, Osaka, JP;

Takehiro Hiyama, Kako-gun, JP;

Assignee:

SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Vickey Nerangis

Int. Cl.
CPC ...
C08K 5/372 (2006.01); C07C 323/12 (2006.01); C08L 7/00 (2006.01); C08G 75/14 (2006.01); C08L 81/04 (2006.01); C08L 21/00 (2006.01); C08L 9/06 (2006.01);
U.S. Cl.
CPC ...
C08K 5/372 (2013.01); C07C 323/12 (2013.01); C08G 75/14 (2013.01); C08L 7/00 (2013.01); C08L 9/06 (2013.01); C08L 21/00 (2013.01); C08L 81/04 (2013.01); C08L 2201/08 (2013.01);
Abstract

Provided is an additive for rubber that contains a sulfide composition, wherein the sulfide composition in the additive for rubber contains a sulfide compound having the repeating units shown by formula (1), the amount of repeating units (1) in which X=2 is at least 45 molar parts per 100 molar parts of repeating units (1) in the sulfide compound, and the number n of repeating units (1) in the sulfide compound is from 1 to 400, whereby an additive for rubber capable of imparting excellent heat resistance is provided. Also provided is a rubber composition that contains said additive for rubber. wherein X is 1, 2 or 3.

Find Patent Forward Citations

Murakami, Shinya. (2020). Additive for rubber (U.S. Patent No. 10774199). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10774199

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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