logo

For the Inventor, By the Inventor

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 11021595 B1

PDFFull Text
Date of Patent:
Jun. 01, 2021

Filed:

Oct. 14, 2016

Multicomponent copolymer, rubber composition, cross-linked rubber composition, rubber product, and tire

Applicant:

Bridgestone Corporation, Tokyo, JP;

Inventors:

Yasuo Horikawa, Chuo-ku, JP;

Olivier Tardif, Chuo-ku, JP;

Yamato Ono, Chuo-ku, JP;

Assignee:

BRIDGESTONE CORPORATION, Tokyo, JP;

Attorney:

Sughrue Mion, PLLC

Primary Examiner:

Ling Siu Choi

Assistant Examiner:

Ronald Grinsted

Int. Cl.
CPC ...
C08L 9/06 (2006.01); B60C 1/00 (2006.01); C08F 210/02 (2006.01); C08F 212/06 (2006.01); C08F 236/06 (2006.01); C08F 236/08 (2006.01); C08F 236/10 (2006.01); C08L 9/00 (2006.01); C08L 23/00 (2006.01); C08L 25/02 (2006.01); C08L 47/00 (2006.01); C08L 53/02 (2006.01);
U.S. Cl.
CPC ...
C08L 9/06 (2013.01); B60C 1/00 (2013.01); C08F 210/02 (2013.01); C08F 212/06 (2013.01); C08F 236/06 (2013.01); C08F 236/08 (2013.01); C08F 236/10 (2013.01); C08L 9/00 (2013.01); C08L 23/00 (2013.01); C08L 25/02 (2013.01); C08L 47/00 (2013.01); C08L 53/02 (2013.01); B60C 1/0016 (2013.01); B60C 1/0025 (2013.01); C08F 2500/01 (2013.01); C08F 2800/10 (2013.01);
Abstract

An object of the present invention is to provide a multicomponent copolymer for use for producing a crosslinked rubber composition and a rubber product excellent in fracture performance (strength and elongation) at high temperatures while maintaining high weather resistance. Further, the invention provides a rubber composition containing the multicomponent copolymer, a crosslinked rubber composition obtained by crosslinking the rubber composition, and a rubber product and a tire using the rubber composition or the crosslinked rubber composition. The multicomponent copolymer of the invention contains a conjugated diene unit, a non-conjugated olefin unit and an aromatic vinyl unit, wherein the main chain is formed of an acyclic structure alone, the content of the aromatic vinyl unit is 3 mol % or more of the whole multicomponent copolymer, and the content of the non-conjugated olefin unit is more than 44 mol % and less than 97 mol % of the whole multicomponent copolymer.

Find Patent Forward Citations

Loading…