초록 ▼

Disclosed is a thermoplastic elastomer composition having characteristics of both thermoplastic resin and rubber, and a golf ball using the thermoplastic elastomer composition as the cover. The thermoplastic elastomer composition of the present invention comprises a thermoplastic resin and crosslink

Disclosed is a thermoplastic elastomer composition having characteristics of both thermoplastic resin and rubber, and a golf ball using the thermoplastic elastomer composition as the cover. The thermoplastic elastomer composition of the present invention comprises a thermoplastic resin and crosslinked diene rubber particles having an average diameter of not more than 10 .mu.m dispersed in the thermoplastic resin, which is prepared by dynamic crosslinking diene rubber dispersed in the thermoplastic resin with crosslinking agent.

대표청구항 ▼

[ What is claimed is:] [1.] A thermoplastic elastomer composition comprising a thermoplastic resin and crosslinked diene rubber particles having an average diameter of not more than 10 .mu.m dispersed in the thermoplastic resin, wherein the thermoplastic resin is an ethylene-acrylic acid copolymer n

[ What is claimed is:] [1.] A thermoplastic elastomer composition comprising a thermoplastic resin and crosslinked diene rubber particles having an average diameter of not more than 10 .mu.m dispersed in the thermoplastic resin, wherein the thermoplastic resin is an ethylene-acrylic acid copolymer neutralized with a metal ion, an ethylene-methacrylic acid copolymer neutralized with a metal ion or an ethylene-acrylic acid-methacrylic acid terpolymer neutralized with a metal ion; said elastomer composition being prepared by dispersing the diene rubber in the thermoplastic resin to form a mixture in a mixing device, calculating the actual torque value of the mixing device, dynamically crosslinking the diene rubber with a crosslinking agent in the mixing device and then terminating the dynamic crosslinking immediately upon reaching the ideal torque value B defined by the equation :EQU B=100+(10.times.A) rein A is defined as ]EQU2 ] provided that (i) the actual torque before dynamic crosslinking is calculated on the basis of 100.times.; and (ii)crosslinking is terminated prior to reaching maximum torque.