Title:
ゴルフボール
Document Type and Number:
Japanese Patent JP7342357
Kind Code:
B2
Abstract:
An object of the present invention is to provide a golf ball traveling a great flight distance and having a good shot feeling on long iron shots. The present invention provides a golf ball comprising a core, at least one intermediate layer covering the core and a cover covering the intermediate layer, wherein the core is formed from a core rubber composition containing (a) a base rubber containing a polybutadiene, (b) an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and/or a metal salt thereof as a co-crosslinking agent, (c) a crosslinking initiator, and (d) a terpene-based resin, and a material hardness (Hm) of the intermediate layer is higher than a material hardness (Hc) of the cover, and the material hardness (Hc) of the cover is 50 or more in Shore D hardness.
Inventors:
Hiroki Takihara
Nagakura Hikari
Forest world
Nagakura Hikari
Forest world
Application Number:
JP2018242102A
Publication Date:
September 12, 2023
Filing Date:
December 26, 2018
Export Citation:
Assignee:
Sumitomo Rubber Industries, Ltd.
International Classes:
A63B37/00; C08K5/09; C08L9/00; C08L45/00
Domestic Patent References:
| JP2002219196A | ||||
| JP2016019620A | ||||
| JP2001212261A | ||||
| JP2016190954A |
Attorney, Agent or Firm:
Osamu Futakuchi