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:
Sep. 15, 2020
Filed:
Dec. 07, 2016
Applicant:
Sumitomo Seika Chemicals Co., Ltd., Kako-gun, Hyogo, JP;
Inventors:
Assignee:
SUMITOMO SEIKA CHEMICALS CO., LTD., Hyogo, JP;
Primary Examiner:
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.