The object of the present invention is to provide a golf ball having excellent scuff resistance and spin performance. The present invention provides a golf ball which comprises a core and a cover covering the core. The cover contains a polyurethane as a resin component, and the polyurethane is obtained by employing a multimodal polyol having multimodality in molecular weight distribution, as a high-molecular-weight polyol component constituting the polyurethane.
1. A golf ball comprising:
a core; and
a cover covering the core, wherein
the cover contains a polyurethane as a resin component, and
the polyurethane is obtained by employing a multimodal polyol having multimodality in molecular weight distribution, as a high-molecular-weight polyol component constituting the polyurethane;
wherein the multimodal polyol is a mixture of the poly(tetramethylene ether) glycol (PTMG 1000) having a number average molecular weight of 900 to 1100 and a poly(tetramethylene ether) glycol (PTMG 2000) having a number average molecular weight of 1800 to 2200 at a molar ratio of from 3/7 to 6/4 (PTMG 1000/PTMG 2000); and
wherein the polyurethane contains 4,4′-dicyclohexylmethane diisocyanate as a polyisocyanate component constituting the polyurethane.
2. The golf ball according to claim 1 , wherein the polyurethane further contains a chain extender as a constituent component.
3. The golf ball according to claim 2 , wherein the chain extender is a low-molecular weight polyol having a molecular weight of not more than 400.
4. The golf ball according to claim 2 , wherein the chain extender is 1,4-butanediol.