THERMOPLASTIC RESIN COMPOSITION FOR GOLF BALL

PROBLEM TO BE SOLVED: To provide a thermoplastic resin composition for a golf ball wherein the bonding strength and the separating property of a multi-piece golf ball cover material with other layer constituting resins are drastically increased while maintaining performances such as an excellent forming property, a wear- resistance and repulsive elasticity. SOLUTION: This thermoplastic resin composition for the golf ball contains 100 pts.wt. of an aromatic vinyl compound-conjugate diene based compound copolymer, 0 to 240 pts.wt. of a rubber softener, 0 to 100 pts.wt. of a peroxide crosslinking type olefin based resin, 0 to 100 pts.wt. of a peroxide resoluble type olefin based resin, 0 to 30 pts.wt. of a liquid form polybutadiene, 0 to 15 pts.wt. of an unsaturated glycidyl based compound, 0 to 15 pts.wt. of an unsaturated carboxylic acid, 0 to 15 pts.wt. of a (meth)acrylate based compound having a hydroxyl group, and also, 0 to 3.5 pts.wt. of an organic peroxide based on the total of 100 pts.wt. of the above substances, and 1 to 1,500 pts.wt. of ethylene and an ethylene based copolymer.