| abstract |
An object of the present invention is to provide a golf ball striking a good balance between a flight distance on driver shots and a spin rate on approach shots, and excellent in stain resistance and a shot feeling. The present invention provides a golf ball comprising an intermediate layer, a cover, and a paint film, wherein a base resin of the paint film is a polyurethane obtained by a reaction between a polyisocyanate composition and a polyol composition containing a urethane polyol including a polyether diol with a number average molecular weight ranging from 800 to 3000 as a constituent component, and the golf ball satisfies the following requirements; n Mp ≦200× X −75n n Mp ≦100n n Mm−Mc >100 n n n n Tm>Tc>Tp n n n ( Tm×Mm )/( Tc×Mc )>7.5 n ( Tc×Mc )/( Tp×Mp )>2.4. n [Mp, Mm and Mc represent 10% modulus (kgf/cm 2 ) of the paint film, intermediate layer and cover, respectively; Tp, Tm and Tc represent thicknesses (mm) of the paint film, intermediate layer and cover, respectively; and X represents a molar ratio (NCO/OH) of a NCO group in the polyisocyanate composition to a OH group in the polyol composition.] |