Pneumatic tire having a component containing high trans styrene-isoprene-butadiene rubber
AssigneeThe Goodyear Tire & Rubber Company
InventorsDavid John Zanzig, Adel Farhan Halasa, John Robert Zuppo, III, John Joseph Andre Verthe
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Abstract
The invention is directed to a pneumatic tire having at least one component comprising a vulcanizable rubber composition, wherein the vulcanizable rubber composition comprises, based on 100 parts by weight of elastomer (phr), from about 30 to 100 phr of high trans random SIBR, and from about zero to about 70 phr of at least one additional elastomer, wherein the high trans random SIBR comprises from about 3 to about 30 percent by weight of styrene.
Claims16
A pneumatic tire having a component comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr),
- (A) from about 30 to 100 phr of high trans random SIBR comprising from about 3 to about 30 percent by weight of styrene, said high trans random SIBR being produced by a process that comprises copolymerizing styrene, isoprene and 1,3-butadiene in an organic solvent in the presence of a catalyst system that is comprised of
- (1) an organolithium compound,
- (2) a group IIa metal salt selected from the group consisting of group IIa metal salts of amino glycols, and group IIa metal salts of glycol ethers, and
- (3) an organometallic compound selected from the group consisting of organoaluminum compounds and organomagnesium compounds;
- and
- (B) from about zero to about 70 phr of at least one additional elastomer.
Dependencies are inferred from the claim text.