Patent ID: 8888611

Claim:
A golf ball cover material comprising polyurethane as a resin component, wherein the polyurethane has a polyol component with a number average molecular weight ranging from 650 to 1,700 as a constituent, and the golf ball cover material has shear loss moduli G1″ (Pa), G2″ (Pa), and G3″ (Pa) that satisfy following equations when measured using a dynamic viscoelasticity measuring apparatus at following conditions: log G1″≦7.09 (1) log G2″≧7.17 (2) log G3″≦7.14 (3) G1″ measuring conditions: shear mode, oscillation frequency: 10 Hz, temperature: 0° C., strain: 0.05%; G2″ measuring conditions: shear mode, oscillation frequency: 10 Hz, temperature: −30° C., strain: 0.05%; and G3″ measuring conditions: shear mode, oscillation frequency: 10 Hz, temperature: 0° C., strain: 5%.