Golf ball
AssigneeSumitomo Rubber Industries, Ltd.
InventorsAkira Kato, Hidenori Hiraoka, Masatoshi Yokota, Satoshi Iwami
Life of this patent
Estimating the term…
Abstract
A golf ball exhibits a high spin and easily comes to a halt even when shot from the rough or when shot in a raining condition. The cover material of the golf ball is based on ionomer resin. The cover material has 5-50 parts by weight of a tackifier such as terpene resins, rosin ester resins or the like blended with respect to 100 parts by weight of the base material.
Claims5
A golf ball comprising a core and a cover, wherein said cover comprises basic resin and a tackifier, and said cover has a hardness of 40-65 in Shore D hardness, wherein said tackifier comprises terpene resin and/or rosin ester resin.
A golf ball comprising a core and a cover, wherein said cover comprises basic resin and a tackifier blended for said cover, wherein
- (a) a blended amount of said tackifier is 10-40 part by weight;
- (b) said basic resin is a,blend of ionomer resin and one or at least two types of polystyrene elastomer, polyolefin elastomer, polyurethane elastomer, and polyester elastomer, and
- (c) said cover has a hardness within a rage of 40-65.
Dependencies are inferred from the claim text.