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:
Sep. 20, 2016
Filed:
Oct. 25, 2013
Applicant:
The Yokohama Rubber Co., Ltd., Tokyo, JP;
Inventor:
Yoshihiro Kameda, Hiratsuka, JP;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C 17/00 (2006.01); B60C 5/00 (2006.01); C08L 9/00 (2006.01); B60C 1/00 (2006.01);
U.S. Cl.
CPC ...
B60C 17/0009 (2013.04); B60C 1/00 (2013.01); B60C 5/00 (2013.01); B60C 17/00 (2013.01); C08L 9/00 (2013.01); B60C 2001/0033 (2013.04); B60C 2017/0054 (2013.04); C08K 2201/006 (2013.01);
Abstract
A rubber composition for a run-flat tire comprises from 20 to 100 parts by weight of a reinforcing filler per 100 parts by weight of a diene rubber containing from 10 to 80 wt. % of butadiene rubber and from 10 to 40 wt. % of natural rubber; wherein the reinforcing filler contains at least 50 wt. % of carbon black; a mode diameter Dst in a mass distribution curve of a Stokes diameter of aggregates of the carbon black is at least 145 nm; a nitrogen adsorption specific surface area NSA is from 45 to 70 m/g; and a ratio NSA/IA of the nitrogen adsorption specific surface area NSA to an iodine adsorption IA (units: mg/g) is from 1.00 to 1.40.