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. 07, 2010
Filed:
Dec. 29, 2005
Zhong-ren Chen, Stow, OH (US);
Sanjeev D. Naik, Arlington, MA (US);
William M. Cole, Clinton, OH (US);
Georg G. A. Böhm, Akron, OH (US);
Zhong-Ren Chen, Stow, OH (US);
Sanjeev D. Naik, Arlington, MA (US);
William M. Cole, Clinton, OH (US);
Georg G. A. Böhm, Akron, OH (US);
Bridgestone Corporation, , JP;
Abstract
Methods are provided for making solution masterbatches containing a diene elastomer in an organic solvent and a silica filler, having a first average particle size, that is ground in an organic solvent to form a silica having a reduced second average particle size. Grinding of the silica in the organic solvent, with or without other ingredients including the elastomer, produces a solution masterbatch in which the silica is mixed with and well dispersed in the elastomer. The use of such desolventized solution masterbatches in vulcanizable rubber compounds results in excellent processing characteristics allowing for the reduced use of processing aids such as oil. The compound also demonstrates improved properties, including reduced hysteresis.