发明名称 GOLF BALL
摘要 The present invention, by forming the outermost layer of a golf ball cover from a specific resin composition that includes a thermoplastic resin and a color masterbatch having mutually similar specific gravities, provides a golf ball which is imparted with an excellent durability of markings thereon, a uniform and evenly colored appearance, and an excellent manufacturability.
申请公布号 US2014187357(A1) 申请公布日期 2014.07.03
申请号 US201213728404 申请日期 2012.12.27
申请人 BRIDGESTONE SPORTS CO., LTD. 发明人 TAGO Takanori;NANBA Atsushi
分类号 A63B37/00 主分类号 A63B37/00
代理机构 代理人
主权项 1. A golf ball comprising a core and a cover of at least one layer encasing the core, wherein an outermost layer of the cover is formed of a resin composition comprising: (A) a thermoplastic resin, and (B) a color masterbatch,which color masterbatch (B) includes (b-1) a thermoplastic resin, (b-2) a colorant, (b-3) titanium oxide, (b-4) a fatty acid metal salt, and (b-5) a dispersant,component (b-4) being included in an amount of from 0.3 to 1.4 parts by weight per 100 parts by weight of component (A) and component (b-1) combined, the ratio (B)/(A) of the specific gravity of component (A) to the specific gravity of component (B) being from 0.8 to 1.2, and component (A) and component (b-1) having weight-average molecular weights (Mw) of at least 100,000.
地址 Tokyo JP