Title:
ゴルフボール
Document Type and Number:
Japanese Patent JP5258263
Kind Code:
B2
Abstract:
An object of the present invention is to provide a golf ball comprising a core and a cover, wherein the cover is made from a cover composition containing, as a resin component, a thermoplastic polyurethane (A) and a polyisocyanate mixture (B) in which a urethane prepolymer (b-1) having at least two isocyanate groups is dispersed in a thermoplastic resin (b-2) which does not substantially react with an isocyanate group; and wherein the cover composition has a slab hardness of more than 60 and not more than 75, and the cover has a thickness of 2.5 mm or less.
Inventors:
Tsutomu Heiyuu
Toshiyuki Tarao
Toshiyuki Tarao
Application Number:
JP2007291125A
Publication Date:
August 07, 2013
Filing Date:
November 08, 2007
Export Citation:
Assignee:
Dunlop Sports Co., Ltd.
International Classes:
A63B37/00
Domestic Patent References:
| JP2006000344A | ||||
| JP58002063B2 | ||||
| JP2004180793A | ||||
| JP2007159997A | ||||
| JP2003070936A | ||||
| JP2002200196A | ||||
| JP2002263219A | ||||
| JP2002336378A |
Attorney, Agent or Firm:
Osamu Futakuchi
Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito
Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito