Solid golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsYoshinori Sano, Satoshi Iwami
Life of this patent
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Abstract
The present invention provides a solid golf ball wherein rebound characteristics and shot feel at the time of hitting are improved without adversely affecting satisfactory flight distance and durability as a feature of the solid golf ball. Disclosed is a solid golf ball comprising a core and a cover formed on the core, the core being composed of a rubber composition containing (i) a base rubber, (ii) a metal salt of .alpha.,.beta.-unsaturated carboxylic acid, (iii) a co-crosslinking initiator, and (iv) a specific organosulfur compound.
Claims4
A solid golf ball comprising a core and a cover formed on the core, wherein the core is formed from a rubber composition comprising:
- (i) a base rubber,
- (ii) a metal salt of .alpha.,.beta.-unsaturated carboxylic acid,
- (iii) a co-crosslinking initiator, and
- (iv) an organosulfur compound selected from the group consisting of:
- (a) 4-methylphenol sulfide represented by ##STR11## (b) bis(4-methacryloylthiophenyl)sulfide represented by ##STR12## (c) 4,4'-dithiodibenzene thiol represented by ##STR13## (d) 4,4'-dibromodiphenylsulfide represented by ##STR14## (wherein Hal represents a halogen atom) (e) 2-mercaptothiazoline represented by ##STR15## (f) a mixture thereof.
A solid golf ball comprising a core and a cover formed on the core, either or both of the core and cover being multi-layered, wherein at least one layer of the core is formed from a rubber composition comprising:
- (i) a base rubber,
- (ii) a metal salt of .alpha.,.beta.-unsaturated carboxylic acid,
- (iii) a co-crosslinking initiator, and
- (iv) an organosulfur compound selected from the group consisting of:
- (a) 4-methylphenol sulfide represented by ##STR16## (b) bis(4-methacryloylthiophenyl)sulfide represented by ##STR17## (c) 4,4'-dithiodibenzene thiol represented by ##STR18## (d) 4,4'-dibromodiphenylsulfide represented by ##STR19## (wherein Hal represents a halogen atom) (e) 2-mercaptothiazoline represented by ##STR20## (f) a mixture thereof.
Dependencies are inferred from the claim text.