Patent Number: 7,820,763

Title: Rubber composition and golf ball including the same as rubber base material

Abstract: A rubber composition comprises a rubber component. The rubber component contains (A) 1-70 weight parts of polybutadiene rubber having a Mooney viscosity (ML) of 35-50 and composed of (a) 1-9 weight % of a boiled n-hexane insoluble fraction having a melting point of 180.degree. C. or higher and (b) 99-91 weight % of a boiled n-hexane soluble fraction. The rubber component also contains (B) 99-30 weight parts of diene-based rubber other than (A). A crosslinking coagent (C) is mixed in the rubber component.

Inventors: Okamoto; Naomi (Ichihara, JP), Ishiguchi; Kouji (Ichihara, JP)

Assignee: Ube Industries, Ltd.

International Classification: C08L 23/00 (20060101); C08L 9/00 (20060101)

Expiration Date: 2018-10-26 0:00:00