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. 01, 2014
Filed:
Nov. 11, 2011
Yasuo Fukushima, Kodaira, JP;
William L. Hergenrother, Akron, OH (US);
Russell W. Koch, Hartville, OH (US);
Yasuo Fukushima, Kodaira, JP;
William L. Hergenrother, Akron, OH (US);
Russell W. Koch, Hartville, OH (US);
Bridgestone Corporation, Tokyo, JP;
Abstract
Polymer-filler coupling compounds with the formula B-A-S—N are claimed. In these compounds, B is an azaheterocyclic oxygen or sulfur containing moiety, or an allyltin moiety; Sis a polysulfide, where x is between 2 and about 10; A is a linking atom or group that forms a bridge between B and S; and N is a blocking group. Scan be a disulfide. N can be a conventional blocking group or other group such as -A-B. Methods for using the polymer-filler coupling compounds to modify polymers containing unsaturated carbon-carbon bonds and promote filler dispersion are also claimed. Additionally, vulcanizable rubber compositions containing the polymer-filler coupling compounds and methods for making vulcanized rubber compositions using the polymer-filler coupling compounds are also claimed.