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US 5,310,815 AGranted
Polymers derived from a conjugated diolefin, a vinyl-substituted aromatic compound, and olefinically unsaturated nitrile
AssigneeThe Goodyear Tire & Rubber Company
InventorsMichael L. Senyek, Howard A. Colvin
Life of this patent
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Abstract
The present invention relates to a polymer resulting from the copolymerization of at least three monomers. From about 40 to 84 weight percent of the polymer is derived from a conjugated diolefin, from about 15 to 50 weight percent of the polymer is derived from a vinyl substituted aromatic compound and from about 1 to 8 weight percent of the polymer is derived from an olefinically unsaturated nitrile. These polymers may be added to a tread rubber stock for improved wet traction and improved abrasion resistance.
Claims14
A rubber stock comprising:
- (a) a polymer resulting from the copolymerization of at least three monomers wherein:
- (1) from about 40 to about 84 weight percent of the polymer being derived from a conjugated diolefin selected from the group consisting of 1,3-butadiene, 2,3-dimethyl-1,3-butadiene, 2-methyl-1-3-butadiene, 2-ethyl-1,3-butadiene, 1,3-pentadiene, 2-methyl-1,3-pentadiene, 1,3-hexadiene, 2-phenyl-1,3-butadiene, 3,4-dimethyl-1,3-hexadiene, 1,3-heptadiene, 1,3-octadiene, 4,5-diethyl-1,3-octadiene, 3-methyl-1,3-pentadiene, 4-methyl-1,3-pentadiene or mixtures thereof;
- (2) from about 15 to about 50 weight percent of the polymer being derived from a vinyl-substituted aromatic compound containing from 8 to 16 carbon atoms;
- and
- (3) from about 1 to about 8 weight percent of the polymer being derived from an olefinically unsaturated nitrile selected from the group consisting of acrylonitrile, methacrylonitrile, ethacrylonitrile, crotononitrile or mixtures thereof;
- and
- (b) a sulfur vulcanizing agent.
4 more elements
Dependencies are inferred from the claim text.