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:
Apr. 28, 2015
Filed:
Dec. 21, 2011
Chenchy J. Lin, Almere, NL;
Atsushi Fukushima, Tokyo, JP;
Christopher G. Robertson, Akron, OH (US);
William L. Hergenrother, Akron, OH (US);
Yaohong Chen, Akron, OH (US);
Chenchy J. Lin, Almere, NL;
Atsushi Fukushima, Tokyo, JP;
Christopher G. Robertson, Akron, OH (US);
William L. Hergenrother, Akron, OH (US);
Yaohong Chen, Akron, OH (US);
Bridgestone Corporation, Tokyo, JP;
Abstract
The present disclosure is directed to tire rubber compositions containing at least one rubbery polymer (with 10 to 100 weight percent of monomer units derived from conjugated diene monomer having between 4 and 8 carbon atoms and 0 to 90 weight percent of monomer units derived from vinyl aromatic monomer); 0.5 to 100 phr of silica filler; 0.05 to 20 phr of a bi-functional silica coupling agent; and 1 to 30 phr of a non-elastomer reactive filler reinforcing agent capable of interacting with at least two silica particles. The bi-functional silica coupling agent and the filler reinforcing agent are utilized in a weight ratio of from 1:100 to 1:0.2. Also disclosed are methods for preparing the tire rubber compositions.