▎ 摘　　要

NOVELTY - Golf ball 500 comprises core 510 and cover layer 530, where the cover layer comprises two half shells fused by ultrasonic welding and compression molding to complete the cover molding with dimples, where the cover layer comprises one or more materials selected from thermoplastic resin, thermoset elastomer, thermoplastic elastomer, and unsaturated polymer. The melting temperature or softening temperature of the cover layer is 40-350?oC, Shore D hardness Hc of the cover layer is in a range of 20-80, thickness Tc of the cover layer is in a range of 0.003-0.25 inch, Professional Golf Association (PGA) compression C of the golf ball is in a range of 40-100, and coefficient of restitution (C.O.R.) of golf ball is greater than 0.780. USE - Golf ball. ADVANTAGE - The golf ball has high performance, flight performance, and impact endurance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a Method of producing golf ball, involves: (1) Fusing half shells by an ultrasonic welding process to form the intermediate layer; and (2) Injection molding or compression molding the cover layer to provide dimples. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a golf ball. Golf ball (500) Core (510) Intermediate layer (520) Cover layer (530)