US 11,723,430 B2
Shoe with outsole containing vegetable oil extended high TG styrene/butadiene elastomer
Paul Harry Sandstrom, Cuyahoga Falls, OH (US)
Assigned to THE GOODYEAR TIRE & RUBBER COMPANY, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Sep. 18, 2020, as Appl. No. 17/24,895.
Prior Publication US 2022/0087360 A1, Mar. 24, 2022
Int. Cl. A43B 13/04 (2006.01); A43B 13/12 (2006.01); A43B 13/18 (2006.01); C08L 9/06 (2006.01); C08L 91/00 (2006.01); C08L 93/04 (2006.01); C08L 9/02 (2006.01); C08K 3/36 (2006.01); C08K 3/04 (2006.01); C08K 11/00 (2006.01); C08K 5/372 (2006.01); C08K 5/548 (2006.01)
CPC A43B 13/04 (2013.01) [A43B 13/122 (2013.01); A43B 13/187 (2013.01); C08K 3/04 (2013.01); C08K 3/36 (2013.01); C08K 5/372 (2013.01); C08K 5/548 (2013.01); C08K 11/005 (2013.01); C08L 9/02 (2013.01); C08L 9/06 (2013.01); C08L 91/00 (2013.01); C08L 93/04 (2013.01)] 15 Claims
 
1. A shoe comprising an outsole, the outsole intended to be ground-contacting, where the outsole is comprised of a rubber composition comprised of, based on parts by weight per 100 parts by weight elastomer (phr):
(A) conjugated diene-based elastomer comprising:
(1) from about 20 to about 45 phr of high Tg styrene/butadiene elastomer (SSBR) pre-extended with vegetable triglyceride oil, wherein said SSBR has a Tg in a range of from about −20° C. to about +10° C. and a bound styrene content in a range of from about 25 to about 50 percent and a vinyl 1,2-content in a range of from about 10 to about 80 percent based on butadiene content,
(2) from 55 to about 80 phr of at least one additional conjugated diene-based elastomer comprising of at least one of polybutadiene, cis 1,4-polyisoprene rubber, and acrylonitrile-butadiene rubber and combinations thereof, and
(B) about 20 to about 70 phr of reinforcing filler comprised of a combination of rubber reinforcing carbon black and precipitated silica where the reinforcing filler is comprised of from about 50 to about 100 weight percent precipitated silica.