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:
May. 07, 2019
Filed:
May. 22, 2014
Applicant:
Bridgestone Corporation, Tokyo, JP;
Inventor:
Keiichi Aomatsu, Tokyo, JP;
Assignee:
BRIDGESTONE CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/04 (2006.01); C08L 9/06 (2006.01); C08L 7/00 (2006.01); B60C 1/00 (2006.01); C08L 15/00 (2006.01); C08K 3/36 (2006.01); C08K 5/548 (2006.01);
U.S. Cl.
CPC ...
C08K 3/04 (2013.01); B60C 1/0016 (2013.01); C08K 3/36 (2013.01); C08K 5/548 (2013.01); C08L 7/00 (2013.01); C08L 9/06 (2013.01); C08L 15/00 (2013.01); C08K 2201/006 (2013.01); Y02T 10/862 (2013.01);
Abstract
Provide is a rubber composition which is improved in rolling resistance and abrasion resistance at the same time without reducing a wet grip performance, and the rubber composition is prepared by compounding 100 parts by mass of a rubber component containing 30% by mass or more of polyisoprene with 2 to 200 parts by mass of carbon black having a hydrogen release rate of 0.2% by mass or more and/or a ratio of a nitrogen adsorption specific surface area NSA and a cetyltrimethylammonium bromide adsorption specific surface area CTAB, NSA/CTAB, of 1.2 to 1.5 and a nitrogen adsorption specific surface area NSA of 160 to 300 m/g.