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:
Jan. 19, 2010
Filed:
May. 25, 2004
Pierre Robert, Perignat-les-Sarlieve, FR;
Samuel Mathieu, Clermont-Ferrand, FR;
Pierre Robert, Perignat-les-Sarlieve, FR;
Samuel Mathieu, Clermont-Ferrand, FR;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Abstract
The present invention relates to a rubber composition usable for constituting a tire tread, said composition being based on at least (i) a reinforcing inorganic filler, (ii) a diene elastomer having a molar ratio of units originating from conjugated dienes which is greater than 30% which is prepared in emulsion and comprises carboxylic acid functions along its chain, and (iii) a bonding agent between said reinforcing inorganic filler and said elastomer which consists of a polysulphurised alkoxysilane. This composition is such that said elastomer is capable of being obtained by effecting: in an emulsifying solution, radical copolymerisation of at least one conjugated diene monomer with a precursor comonomer which is hydrolysable or oxidisable to carboxylic acid, in order to obtain an intermediate diene elastomer comprising precursor functions of said acid along its chain, then hydrolysis or oxidation of said precursor functions in order to obtain said elastomer comprising carboxylic acid functions along the chain.