URETHANE ELASTOMER WITH IMPROVED COLOR STABILITY

摘要

PROBLEM TO BE SOLVED: To provide a golf ball having urethane elastomer with improved in color stability. SOLUTION: This golf ball includes the center, cover, and at least one intermediate layer arranged between the center and the cover. The cover is made of the polyurethane composition including at least one polyol, at least one poly-isocyanate, at least one hardening agent and at least one color stabilizer, or the reactive products thereof. A quantity of the color stabilizer enough to generate theΔC* smaller than about 22 when radiating the UV lays for one hour of time frame is included. In one mode, the cover has the Shore hardness smaller than bout 80, a bending modulus smaller than about 689.5 MPa (100,000 psi), the dimple coverage larger than about 60% and the ATTI compression smaller than about 120.