Golf ball intermediate layer resin composition and golf ball

A golf ball comprising a core having a center and at least one intermediate layer disposed around the center, and a cover disposed around the core,

• wherein at least one intermediate layer is formed by injection molding a golf ball intermediate layer resin composition which comprises a zinc compound (C) and a resin component,
• wherein said resin component consists of
• (A) an ionomer resin, said ionomer resin having a melt flow rate (190° C., 2.16 kg) ranging from 0.1 g/10 min to 30 g/10 min, a bending stiffness ranging from 140 MPa to 550 MPa, and a slab hardness ranging from 50 to 75 in Shore D hardness and consisting of a metal ion-neutralized product of a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms, and
• (B) a binary copolymer composed of an olefin and an α,β-unsaturated carboxylic acid having 3 to 8 carbon atoms wherein the carboxyl groups thereof are not neutralized,
• wherein a content ratio ((A)/(B)) of (A) component to (B) component ranges from 50/50 to 80/20 in a mass ratio and a content of (C) component ranges from 0.1 part to 20 parts with respect to 100 parts by mass of a sum of (A) component and (B) component, and
• the golf ball intermediate layer resin composition has a melt flow rate (190° C., 2.16 kg) of 15 g/10 min or more and a slab hardness ranging from 61 to 75 in Shore D hardness.