Patent ID: 8426523
Filing Date: 2013-04-23
Classification: A63B

Abstract:
1. A golf ball comprising: a core and a cover covering the core, wherein the cover is formed from a cover composition that contains as a resin component, (A) a high melt viscosity ionomer resin having a melt viscosity (190° C.) ranging from 500 Pa·s to 100,000 Pa·s measured by a flow tester and being neutralized with at least two kinds of metal ions, and (B) a low melt viscosity ionomer resin having a melt, viscosity (190° C.) ranging from 1 Pa·s to 10 Pa·s measured by a brookfield viscometer and a melt flow rate (190° C.*2.16 kg) ranging from 100 g/10 min to 2,000 g/10 min, in a ratio of (A) the high melt viscosity ionomer resin/(B) the low melt viscosity ionomer resin being 55 mass % to 99 mass %/45 mass % to 1 mass %, wherein the cover composition has a melt flow rate (190° C.*2.16 kg) ranging from 10 g/10 min to 100 g/10 min.