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:
Aug. 18, 2015
Filed:
Nov. 17, 2009
Pierre Lesage, Clermont-Ferrand, FR;
Emmanuel Custodero, Chamaliéres, FR;
Julien Thuilliez, La Roche Blanche, FR;
Marc Greiveldinger, Chatel Guyon, FR;
Pierre Lesage, Clermont-Ferrand, FR;
Emmanuel Custodero, Chamaliéres, FR;
Julien Thuilliez, La Roche Blanche, FR;
Marc Greiveldinger, Chatel Guyon, FR;
Michelin Recherche et Technique S.A., Granges-Faccet, CH;
COMPAGNIE GENERALE DES ESTABLISSEMENTS MICHELIN, Clermont-Ferrand, FR;
Abstract
Inflatable article equipped with an elastomer layer impermeable to inflation gases, said elastomer layer comprising at least, as the predominant elastomer, a thermoplastic SIBS elastomer comprising a polyisobutylene block comprising an amount of units derived from one or more conjugated dienes ranging from 0.5% to 6% by weight relative to the weight of the polyisobutylene block, and, at least one of the ends of the polyisobutylene block, a styrenic block representing at most 16% by weight of the total weight of the block copolymer. Preferably the airtight elastomer layer also comprises, as a plasticizing agent, an extender oil for the SIBS elastomer. The inflatable article of the invention is, in particular, an inner tube or a pneumatic tire for a motor vehicle.