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:
Dec. 25, 2007
Filed:
Dec. 29, 2005
Zhong-ren Chen, Stow, OH (US);
Sunji Araki, Tokyo, JP;
William M. Cole, Clinton, OH (US);
William Hergenrother, Akron, OH (US);
Sandra Warren, Massillon, OH (US);
Zhong-Ren Chen, Stow, OH (US);
Sunji Araki, Tokyo, JP;
William M. Cole, Clinton, OH (US);
William Hergenrother, Akron, OH (US);
Sandra Warren, Massillon, OH (US);
Bridgestone Corporation, Chuo-ku, Tokyo, JP;
Abstract
Methods are provided for making a solution masterbatch containing a diene elastomer in an organic solvent and a reinforcing silica filler dispersed therein, comprising the steps of (a) mixing a precipitated silica having an average particle size substantially equivalent to an average particle size of a powdered silica, with a diene elastomer in a first organic solvent; and (b) desolventizing the mixture to form a solution masterbatch preparation. The use of such desolventized solution masterbatches in vulcanizable rubber compounds results in excellent processing characteristics with improved dispersion of fillers, including polymeric nanoparticles. The compounds also demonstrate improved properties, including reduced hysteresis.