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:
May. 28, 2013
Filed:
Aug. 27, 2010
Zhong-ren Chen, Stow, OH (US);
Joseph M. Lanzarotta, Uniontown, OH (US);
Yuichi Nagai, Tokyo, JP;
Tomohiro Kusano, Tokyo, JP;
Zhong-Ren Chen, Stow, OH (US);
Joseph M. Lanzarotta, Uniontown, OH (US);
Yuichi Nagai, Tokyo, JP;
Tomohiro Kusano, Tokyo, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
Disclosed is a method comprising: (a) mixing in a first mixing step ingredients comprising (i) first polymer, (ii) a low molecular weight polymer having a number average molecular weight of about 5,000 to about 100,000, and (iii) a filler, and (b) mixing in a second mixing step ingredients comprising (i) the mixture obtained in step (a), (ii) a second polymer that is different from said first polymer, and (iii) optionally a filler. In one embodiment, the method further comprises mixing sulfur and vulcanization accelerator(s) into the composition, forming the rubber composition into a sidewall for a tire, and vulcanizing the rubber composition.