Rubber composition for golf ball, and golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorsJun Shindo, Daisuke Arai
Life of this patent
Estimating the term…
Abstract
A rubber composition for golf balls includes (a) a base rubber, (b) a co-crosslinking agent which is an α,β-unsaturated carboxylic acid and/or a metal salt thereof, (c) an organic peroxide, (d) water or an alcohol, and (e) an antioxidant which is a benzoimidazole of the following general formula and/or a metal salt thereof. When the rubber composition is used in constituent members of a golf ball, especially the core, the golf ball exhibits low spin properties on shots, resulting in an improved flight performance and enabling a good durability to be maintained.
Claims8
A constituent member of a golf ball comprising a vulcanized form of a rubber composition comprising:
- (a) a base rubber,
- (b) a co-crosslinking agent which is an α,β-unsaturated carboxylic acid or a metal salt thereof or both,
- (c) an organic peroxide,
- (d) an alcohol which is butanol, glycerol, ethylene glycol or propylene glycol, and
- (e) an antioxidant which is a benzoimidazole of the following general formula (1) or a metal salt thereof or both
- (wherein R is a hydrogen atom or a hydrocarbon group of 1 to 20 carbon atoms and m is an integer from 1 to 4, with each R being the same or different when m is 2 or more).
Dependencies are inferred from the claim text.