Patent ID: 9474941
Filing Date: 2016-10-25
CPC Classification: A63B,C08F

Claim Text:
1. A golf ball comprising a constituent member containing an ionomer resin and a constituent member containing a polyurethane, wherein an adhesive layer is interposed between the constituent member containing the ionomer resin and the constituent member containing the polyurethane, wherein the adhesive layer is formed from a liquid where an adhesive resin component is dissolved or dispersed in a solvent, and the adhesive resin component is a golf ball material composed of a multi-block copolymer having an A-B-A type tri-block copolymer structure, wherein a block B has lower polarity than a block A, the block A contains, as a component, an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, of which at least a part of carboxyl groups is neutralized with a metal ion, and the block B is a polyolefin block containing, as a component, at least one olefin selected from the group consisting of ethylene, propylene, butene, and pentene.