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. 23, 2014
Filed:
Dec. 31, 2007
Xiao-dong Pan, Akron, OH (US);
Pat Sadhukhan, Akron, OH (US);
Hiroshi Mouri, Kodaira, JP;
Michael W. Hayes, Canton, OH (US);
Dennis R. Brumbaugh, North Canton, OH (US);
Xiao-Dong Pan, Akron, OH (US);
Pat Sadhukhan, Akron, OH (US);
Hiroshi Mouri, Kodaira, JP;
Michael W. Hayes, Canton, OH (US);
Dennis R. Brumbaugh, North Canton, OH (US);
Bridgestone Corporation, Tokyo, JP;
Abstract
A rubber formulation with good wet traction properties includes one or more elastomers and at least two types of particulate filler materials including at least one of which has a relatively high free surface energy in water (i.e., a supplemental filler). The formulation containing the supplemental filler(s) can provide a vulcanizate that has a British pendulum (skid) number that is at least ˜5% greater than that of a vulcanizate made from an essentially identical formulation that does not contain the supplemental filler(s). Also provided is a method for providing such a formulation which involves identifying one or more supplemental fillers having relatively high free surface energies in water, replacing at least 15% (by wt.) of one or more of the conventional particulate fillers in the formulation with an approximately equivalent volume of supplemental filler particles, and providing the modified formulation.