US 11,865,419 B2
Golf club grip and golf club
Sho Goji, Kobe (JP); and Kazuyoshi Shiga, Kobe (JP)
Assigned to Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Filed by Sumitomo Rubber Industries, Ltd., Hyogo (JP)
Filed on Oct. 5, 2020, as Appl. No. 17/063,577.
Claims priority of application No. 2019-188730 (JP), filed on Oct. 15, 2019.
Prior Publication US 2021/0106890 A1, Apr. 15, 2021
Int. Cl. A63B 53/14 (2015.01); C08L 23/22 (2006.01); C08L 7/00 (2006.01); C08F 36/08 (2006.01); C08L 23/16 (2006.01); C08K 5/00 (2006.01)
CPC A63B 53/14 (2013.01) [C08F 36/08 (2013.01); C08L 7/00 (2013.01); C08L 23/16 (2013.01); C08L 23/22 (2013.01); C08K 5/0025 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A golf club grip comprising an outermost surface layer, wherein at least a part of the outermost surface layer is formed from a rubber composition containing (A) a base rubber and (B) a tackifier having a softening point in a range of from 5° C. to 120° C.,
(A) the base rubber contains at least one member selected from the group consisting of a natural rubber, an isoprene rubber, an ethylene-propylene-diene rubber and a butyl rubber, and
a portion formed from the rubber composition has a loss tangent (tanδ) (30° C., 10 Hz) and a complex elastic modulus (E*) (30° C., 10 Hz) satisfying a relationship of 0.070≤tanδ/(E*) 0.2≤0.098 and wherein the loss tangent is in a range from 0.086 to 0.14.