US 11,873,416 B2
Golf ball
Kuniyasu Horiuchi, Kobe (JP); Toshiyuki Tarao, Kobe (JP); Kazuya Kamino, Kobe (JP); and Hidetaka Inoue, Kobe (JP)
Assigned to SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed by SUMITOMO RUBBER INDUSTRIES, LTD., Kobe (JP)
Filed on Oct. 20, 2021, as Appl. No. 17/506,175.
Application 17/506,175 is a continuation of application No. 16/818,653, filed on Mar. 13, 2020, granted, now 11,235,203.
Claims priority of application No. 2019-060595 (JP), filed on Mar. 27, 2019; and application No. 2019-192019 (JP), filed on Oct. 21, 2019.
Prior Publication US 2022/0040536 A1, Feb. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. A63B 37/00 (2006.01); C09D 175/08 (2006.01); C09D 175/06 (2006.01); C08K 3/34 (2006.01); C09D 175/04 (2006.01); C08G 18/64 (2006.01); C08G 18/73 (2006.01); C08G 18/75 (2006.01); C08G 18/42 (2006.01); C08G 18/62 (2006.01); C08G 18/40 (2006.01); C08G 18/78 (2006.01); C09D 7/61 (2018.01)
CPC C09D 175/06 (2013.01) [A63B 37/0022 (2013.01); A63B 37/0075 (2013.01); A63B 37/00221 (2020.08); A63B 37/00222 (2020.08); C08G 18/4081 (2013.01); C08G 18/4277 (2013.01); C08G 18/6275 (2013.01); C08G 18/6484 (2013.01); C08G 18/73 (2013.01); C08G 18/755 (2013.01); C08G 18/7831 (2013.01); C08K 3/34 (2013.01); C09D 7/61 (2018.01); C09D 175/04 (2013.01); C09D 175/08 (2013.01); A63B 37/0096 (2013.01); C08K 3/346 (2013.01); C08K 2201/005 (2013.01)] 20 Claims
 
1. A golf ball comprising a golf ball body and a paint film composed of at least one layer and formed on a surface of the golf ball body,
wherein an outermost layer of the paint film located at the outermost layer of the golf ball contains a base resin and a porous filler,
the base resin contains a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition,
the porous filler contains SiO2 in an amount of 50 mass % or more and 95 mass % or less as a constituent component, and
the polyisocyanate composition contains, as a polyisocyanate component, an adduct-modified product of hexamethylene diisocyanate with an isocyanurate-modified product of hexamethylene diisocyanate, an adduct-modified product of hexamethylene diisocyanate with an isocyanurate-modified product of isophorone diisocyanate; or an isocyanurate-modified product of hexamethylene diisocyanate with an isocyanurate-modified product of isophorone diisocyanate.