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:
Dec. 29, 2020
Filed:
Oct. 14, 2016
Bridgestone Corporation, Tokyo, JP;
Kyohei Kotani, Chuo-ku, JP;
Shigenaga Takano, Chuo-ku, JP;
Shigeki Oishi, Chuo-ku, JP;
Shojiro Kaita, Chuo-ku, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
An object of the present invention is to provide a multicomponent copolymer for use for producing a rubber composition and a rubber product having high abrasion resistance and wet performance. Further, the invention is to provide a rubber composition containing the multicomponent copolymer, a crosslinked rubber composition produced by crosslinking the rubber composition, and a tire and a rubber product 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 content of the aromatic vinyl unit is 5 mol % or more and less than 50 mol % of the whole multicomponent copolymer and the content of the non-conjugated olefin unit is more than 0 mol % and 50 mol % or less of the whole multicomponent copolymer.