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. 16, 1996
Filed:
Nov. 03, 1994
Christine L Morehart, North Canton, OH (US);
Frederick J Ravagnani, Uniontown, OH (US);
Bridgestone Corporation, Tokyo, JP;
Abstract
A tubeless pneumatic vehicle tire having resistance to air permeability in the absence of an innerliner comprises a tread, one or more reinforcing belts, sidewalls, one or more body plies and beads. The rubber skim of the innermost body ply is formed from a rubber composition which is resistant to air permeability. The rubber composition comprises: (a) from about 10 to about 60 parts by weight of natural rubber; (b) from about 20 to about 30 parts by weight of a halogenated butyl rubber; (c) from about 20 to about 30 parts by weight of epichlorohydrin rubber; and (d) from about 5 to about 50 parts by weight of a metal salt-containing material selected from the group consisting of a metal salt of an unsaturated carboxylic acid and a graft copolymer comprising a diene monomer or copolymer backbone having pendently grafted thereto a polymerized metal salt of an unsaturated carboxylic acid.