US 12,226,676 B2
Resin composition for golf ball, and golf ball
Atsushi Namba, Saitamaken (JP); and Shuto Fukasawa, Saitamaken (JP)
Assigned to Bridgestone Sports Co., Ltd., Tokyo (JP)
Filed by Bridgestone Sports Co., Ltd., Tokyo (JP)
Filed on Jan. 27, 2023, as Appl. No. 18/102,113.
Application 18/102,113 is a continuation in part of application No. 17/341,639, filed on Jun. 8, 2021, granted, now 11,608,434.
Claims priority of application No. 2020-110580 (JP), filed on Jun. 26, 2020.
Prior Publication US 2023/0211210 A1, Jul. 6, 2023
Int. Cl. A63B 37/06 (2006.01); A63B 37/00 (2006.01); C08L 47/00 (2006.01); C08L 67/02 (2006.01)
CPC A63B 37/0024 (2013.01) [C08L 47/00 (2013.01); C08L 67/02 (2013.01); A63B 37/0074 (2013.01); A63B 37/0076 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A golf ball comprising a core of one or more layers and a cover of one or more layers which encases the core, wherein at least one layer of the cover is formed of the resin composition comprising:
(a′) a polyester resin, and
(b) an amine-containing polymer having a branched structure,
wherein the compounding proportion of the total of component (a′) and component (b) in the whole amount, 100 weight by % of the resin composition is at least 60% by weight.