Tire with component containing wire reinforcement encapsulated with a rubber composition comprised of cis 1,4-polyisoprene rubber and liquid polyisoprene
OwnerCharles Edward Drvol, Shahir Rafael Azer +2inventors
InventorsCharles Edward Drvol, Shahir Rafael Azer, Marc Jules Alexis Henoumont, Michael Brendan Rodgers
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Abstract
This invention relates to an unvulcanized rubber tire which has at least one wire reinforced rubber component which contains wire reinforcement encapsulated with an unvulcanized rubber composition comprised of natural cis 1,4-polyisoprene rubber, and liquid polyisoprene polymer. The said encapsulation rubber composition of the tire component is then sulfur cured together with the curing of the tire itself. Such tire component may be, for example, a carcass ply and/or belt ply.
Claims20
A tire is provided having at least one component which contains wire encapsulated with an unvulcanized rubber composition which comprises, based upon 100 parts by weight elastomer, (phr):
- (A) 100 phr of natural cis 1,4-polyisoprene rubber,
- (B) about 5 to about 30 phr of liquid cis 1,4-polyisoprene polymer having a number average (Mn) molecular weight of not more than 80,000,
- (C) about 50 to about 100 phr of particulate reinforcing filler comprised of carbon black and participated silica which contains from about 40 to about 80 phr of said carbon black.
Dependencies are inferred from the claim text.