US 12,220,616 B2
Golf ball
Ayaka Shindo, Kobe (JP); Takahiro Shigemitsu, Kobe (JP); Kazuyoshi Shiga, Kobe (JP); Toshiyuki Tarao, Kobe (JP); and Takanobu Kawamura, Kobe (JP)
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed by Sumitomo Rubber Industries, Ltd., Kobe (JP)
Filed on Apr. 21, 2023, as Appl. No. 18/137,589.
Claims priority of application No. 2022-070762 (JP), filed on Apr. 22, 2022.
Prior Publication US 2023/0338781 A1, Oct. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 37/12 (2006.01); A63B 37/00 (2006.01)
CPC A63B 37/0074 (2013.01) [A63B 37/0024 (2013.01); A63B 37/0031 (2013.01); A63B 37/0036 (2013.01); C08L 23/0876 (2013.01)] 20 Claims
OG exemplary drawing
 
10. A golf ball comprising a spherical core and one or more cover layers disposed outside the spherical core, wherein at least one layer of the cover layers contains:
(A) a base resin containing an ionomer resin, and
(B) a polyethylene oxide having a number average molecular weight of 400 or more and 7,000,000 or less, and
an amount of (B) the polyethylene oxide is 0.1 part by mass or more and 30 parts by mass or less with respect to 100 parts by mass of (A) the base resin.