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:
Mar. 17, 2015
Filed:
Aug. 19, 2011
Applicants:
Reiko Yagi, Kodaira, JP;
Kumi Fujiki, Kodaira, JP;
Inventors:
Reiko Yagi, Kodaira, JP;
Kumi Fujiki, Kodaira, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/00 (2006.01); C09B 67/00 (2006.01); B29D 30/52 (2006.01); C08J 3/22 (2006.01); B60C 1/00 (2006.01); C08L 21/00 (2006.01); C08J 3/20 (2006.01);
U.S. Cl.
CPC ...
C08J 3/22 (2013.01); B60C 1/00 (2013.01); C08L 21/00 (2013.01); C08J 3/203 (2013.01); C08J 2300/22 (2013.01); C08J 2300/26 (2013.01); C08J 2321/00 (2013.01);
Abstract
The present invention is a method for manufacturing a rubber composition containing a rubber component, a resin, a reinforcing filler and a crosslinking agent, and the method contains: a first step of adding the resin to the rubber component to produce a master batch; a second step of kneading the master batch with the reinforcing filler to produce a filled master batch; and a third step of kneading the filled master batch with the crosslinking agent, thereby providing a rubber composition having higher elasticity and large breaking elongation.