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:
Jul. 23, 2013
Filed:
Jun. 19, 2008
Pierre Robert, Clermont-Ferrand, FR;
Nicolas Seeboth, Clermont-Ferrand, FR;
Jean-michel Favrot, Cournon d'Auvergne, FR;
Philippe Chaboche, Clermont-Ferrand, FR;
Pierre Robert, Clermont-Ferrand, FR;
Nicolas Seeboth, Clermont-Ferrand, FR;
Jean-Michel Favrot, Cournon d'Auvergne, FR;
Philippe Chaboche, Clermont-Ferrand, FR;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Compagnie Generale des Etablissements Michelin, Clermont-Ferrand, FR;
Abstract
A process for preparing a functionalized or unfunctionalized diene block copolymer comprising at least one polyether block of number-average molecular weight approximately fromtog/mol linked to at least one block constituted of a diene elastomer via at least one silicon atom. The process allows a high degree of grafting of the polyether to the polymer chains. Also disclosed is a reinforced rubber composition, especially intended for the manufacture of tires, comprising such a diene block copolymer which is intended to interact with the reinforcing filler. Such a rubber composition has improved hysteresis properties in the vulcanized state, while retaining satisfactory processing properties in the non-vulcanized state.