Patent ID: 7534824

Claim:
A polymer composition comprising: syndiotactic 1,2-polybutadiene; 2-ethylhexyl acid phosphate; 2,2′-dihydroxy-3,3′-bis(methylcyclohexyl)-5,5′-dimethyldiphenylmethane; and didodecyl-3,3′-thiodipropionate, wherein the content of 2-ethylhexyl acid phosphate is 0.03-0.1 wt. % based on 100 wt. % of syndiotactic 1,2-polybutadiene, wherein the content of 2,2′-dihydroxy-3,3′-bis(methylcyclohexyl)-5,5′-dimethyldiphenylmethane is 0.1 wt. % based on 100 wt. % of syndiotactic 1,2-polybutadiene, and wherein the content of didodecyl-3,3′-thiodipropionate is 0.2 wt. % based on 100 wt. % of syndiotactic 1,2-polybutadiene.