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:
Jul. 14, 2020
Filed:
Aug. 31, 2016
Applicant:
Bridgestone Corporation, Tokyo, JP;
Inventors:
Assignee:
BRIDGESTONE CORPORATION, Chuo-ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60C 1/00 (2006.01); C08L 9/06 (2006.01); C08L 25/10 (2006.01); C08L 67/04 (2006.01);
U.S. Cl.
CPC ...
B60C 1/0016 (2013.01); C08L 9/06 (2013.01); C08L 25/10 (2013.01); C08L 67/04 (2013.01);
Abstract
A rubber compound for treads comprising a styrene-butadiene rubber (SBR), carbon black and a vulcanization system. The filler comprises 5 to 30 phr of a thermoplastic polymer, preferably polylactic acid, having a Tg ranging from 50 to 70° C., a molecular weight (Mw) not exceeding 200,000 g/mol and a crystallinity not exceeding 0%.