Composition for golf ball cover using the Self-healing crosslinked polyurethane and method for preparation of golf ball cover using the same

摘要

The present invention relates to a self-healing crosslinkable polyuretane and a golf ball cover composition comprising the same. The golf ball cover composition comprises 1 to 20 parts by weight of a thermoplastic polyurethane (TPU) A self-healing crosslinked polyurethane which is prepared by mixing and exchanging a polyurethane prepolymer and 0 to 10 parts by weight of a polyamide, is a self-healing crosslinked polyurethane golf ball cover composition. The golf ball cover composition of the present invention is capable of injection molding by ensuring the flowability of urethane because crosslinking of polyurethane is broken at a high temperature of 180 ° C or more, and as a result of injection molding, problems in process of manufacturing urethane cover by conventional casting It has an effect to overcome. In addition, the self-healing crosslinked polyurethane prepared by using the golf ball cover composition of the present invention has a good rebound resilience and is excellent in mechanical properties of the polyurethane elastomer due to the formation of cross- The performance is excellent.