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:
Jun. 30, 2020
Filed:
Jul. 05, 2018
Applicant:
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Inventor:
Tatsuya Miyazaki, Kobe, JP;
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L 9/06 (2006.01); C08L 9/00 (2006.01); C08L 7/00 (2006.01); B60C 1/00 (2006.01);
U.S. Cl.
CPC ...
C08L 9/06 (2013.01); B60C 1/00 (2013.01); B60C 1/0016 (2013.01); C08L 7/00 (2013.01); C08L 9/00 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01);
Abstract
Provided is a rubber composition having improved initial dry grip performance, durability of dry grip performance, and chipping resistance (elongation at break). The rubber composition includes: a diene polymer; carbon black and/or silica; and a sulfur-containing oligomer having a weight average molecular weight of 4,000 or more, determined by GPC in chloroform solvent using polystyrene standard oligomers.