Golf ball
AssigneeBridgestone Corporation
InventorsMakoto Nakamura, Toshio Honda, Toshio Chikaraishi, Yukio Fukuura
Life of this patent
Estimating the term…
Abstract
A one-piece golf ball or a core of a multi-layered golf ball is formed from a rubber composition containing a base rubber component in the form of a modified rubber which is prepared by introducing an unsaturated carboxylate group into a polybutadiene rubber. The ball is satisfactorily durable and shows good flying performance.
Claims6
A one-piece or core of a multi-layered golf ball comprising a rubber composition comprising a modified diene rubber, said diene rubber being selected from the group consisting of polybutadiene rubbers, natural rubbers, and polyisoprene rubbers, and said modified diene rubber including a group having the formula:
- ##STR8## wherein R is hydrogen or an alkyl radical having 1 to 5 carbon atoms, wherein the group of formula (1) is present in an amount of about 1/500 to about 1/20,000 molar equivalent per unit weight of said diene rubber, about 10 to about 50 parts by weight of a co-crosslinking agent, about 0.5 to about 5 parts by weight of a free radical releasing agent, and about 10 to about 80 parts by weight of a filler per 100 parts by weight of the base rubber component.
Dependencies are inferred from the claim text.