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.

Date of Patent:
Jul. 08, 2008

Filed:

Jun. 02, 2004
Applicants:

Pierre Robert, Perignat-les Sarlieve, FR;

Jean-michel Favrot, Cournon-d'Auvergne, FR;

Philippe Laubry, Greer, SC (US);

Fanny Barbotin, Clermont-Ferrand, FR;

Inventors:

Pierre Robert, Perignat-les Sarlieve, FR;

Jean-Michel Favrot, Cournon-d'Auvergne, FR;

Philippe Laubry, Greer, SC (US);

Fanny Barbotin, Clermont-Ferrand, FR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/18 (2006.01); C08K 3/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to a cross-linkable or cross-linked rubber composition having improved hysteresis properties in the cross-linked state which is useful for the manufacture of treads for tires. The rubber composition of the present invention comprises at least one diene elastomer having a molar ratio of units originating from conjugated dienes which is greater than 30% and comprising carboxylic acid functions along its chain, and a reinforcing inorganic filler. The present invention further relates to a process for preparing such a cross-linkable or cross-linked rubber composition as well as to a tire having reduced rolling resistance and a tread for a tire where the tread comprises the rubber composition of the present invention.


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