Golf ball
AssigneeBridgestone Sports Co., Ltd.
InventorsJun Shindo, Takahiro Hayashi
Life of this patent
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Abstract
The invention provides a golf ball having a ball component made of a material molded under heat from a rubber composition of (a) a base rubber which includes a polybutadiene of at least 40% cis-1,4 structure, (b) an unsaturated carboxylic acid and/or a metal salt thereof, (c) an organic peroxide, and (d) a halogenated thiophenol, and/or a metal salt thereof, which is prepared by reacting starting materials in a polar solvent then washing with water and drying. The golf ball of the invention uses as a ball component a material of exceptional resilience which is obtained by molding a rubber composition under applied heat. As a result, the ball as a whole has an excellent rebound.
Claims16
A golf ball comprising a ball component made of a material molded under heat from a rubber composition comprising (a) a base rubber which includes a polybutadiene of at least 40% cis-1,4 structure, (b) an unsaturated carboxylic acid and/or a metal salt thereof, (c) an organic peroxide, and (d) a halogenated thiophenol, and/or a metal salt thereof, which is prepared by reacting starting materials in a polar solvent and then washing with water and drying.
A method of manufacturing a golf ball, comprising the steps of:
- reacting starting materials in a polar solvent and then washing with water and drying to prepare (d) a halogenated thiophenol and/or a metal salt thereof, and
- molding a ball component made of a material molded under heat from a rubber composition comprising (a) a base rubber which includes a polybutadiene of at least 40% cis-1,4 structure, (b) an unsaturated carboxylic acid and/or a metal salt thereof, (c) an organic peroxide, and (d) the halogenated thiophenol, and/or the metal salt thereof.
Dependencies are inferred from the claim text.