Patent ID: 8349958
Filing Date: 2013-01-08
Classification: A63B,C08L

Abstract:
1. A golf ball forming resin composition comprising as a resin component, (A) a high melt viscosity resin containing: (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 consisting of a metal ion-neutralized product of a binary copolymer composed of ethylene and α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, a metal ion-neutralized product of a ternary copolymer composed of ethylene, α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms and α,β-unsaturated carboxylic acid ester, or a mixture thereof, in a ratio of (A) the high melt viscosity resin/(B) the low melt viscosity ionomer resin being 55 mass % to 99 mass %/45 mass % to 1 mass %; and (C) a metal ion source capable of neutralizing carboxyl groups of (A) the high melt viscosity resin and (B) the low melt viscosity ionomer resin, in an amount of from 0.1 part to 10 parts with respect to 100 parts by mass of a sum of (A) the high melt viscosity resin and (B) the low melt viscosity ionomer resin, wherein the golf ball forming resin composition has a melt flow rate (190° C.*2.16 kg) ranging from 9 g/10 min to 100 g/10 min.