Abstract: The present invention provides a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing a non-petroleum based polyester resin as a resin component (A) and a needle-like and/or fibrous filler (B). The present invention further provide a golf ball comprising a core and a cover covering the core, wherein the cover is formed from a cover composition containing, a non-petroleum based polyester resin (A-1), at least one petroleum based thermoplastic resin (A-2), and a compatibilizer (C) containing at least a (meth)acrylic resin (C-1) having a polar functional group and an olefin resin (C-2) having a polar functional group. According to the present invention, durability, abrasion resistance and repulsion of a golf ball can be improved.

Abstract: The object of the present invention is to provide a golf ball having the individualized appearance as well as the improved visibility, which the mark should inherently provide, by imparting the luster (brilliance) to the mark, without lowering the durability of the mark, even if the mark is printed with the ink composition which the luster material is blended into. The golf ball of the present invention includes a mark made from an ink composition, wherein the ink composition has a pigment, and a luster material having a core layer with a smooth surface and a metal covering the core layer.

Abstract: An object of the present invention is to provide a golf ball which is superior in durability to a golf ball having an ionomer resin cover which has conventionally been used. Another object of the present invention is to provide a golf ball using a non-petroleum based material. The golf ball of the present invention comprises a core and a cover covering the core, wherein at least either the core or the cover includes, as a resin component, a polyester resin containing a non-petroleum based material as a constitutional component.

Abstract: The present invention provides an ionomer composition for a golf ball providing a golf ball which is excellent in abrasion-resistance, durability and resilience, and a golf ball using the same. The ionomer composition for a golf ball of the present invention comprises a polymer containing at least following component as a constituent component: First component: an olefin monomer having 2 to 8 carbon atoms; Second component: an unsaturated carboxylic acid having 2 to 18 carbon atoms; and Third component: a diene or a diene polymer, wherein at least 10 mole % of the carboxyl group in the polymer is neutralized with an inorganic metal compound.

Abstract: The present invention provides an ionomer composition for a golf ball providing a golf ball which is excellent in abrasion-resistance, durability and resilience, and a golf ball using the same. An ionomer composition for a golf ball of the present invention comprises a binary copolymer obtained by copolymerizing an olefin monomer having 2 to 8 carbon atoms with an unsaturated monomer having an acid functional group and/or a ternary copolymer obtained by copolymerizing an olefin monomer having 2 to 8 carbon atoms, an unsaturated monomer having an acid functional group and an unsaturated carboxylic acid ester, wherein a functional group is introduced in both terminals of the copolymers.

Abstract: The present invention provides a golf ball with excellent abrasion-resistance, durability and resilience having an ionomer resin cover therein. The ionomer composition for the golf ball of the invention comprises a reaction product obtained by reacting a telechelic copolymer having functional groups introduced in both terminals of a binary copolymer formed by copolymerizing an olefin monomer having 2 to 8 carbon atoms and an unsaturated carboxylic acid having 2 to 18 carbon atoms, and/or a ternary copolymer formed by copolymerizing an olefin monomer having 2 to 8 carbon atoms, an unsaturated carboxylic acid having 2 to 18 carbon atoms and an unsaturated carboxylic acid ester with a hydroxyl group-containing compound or an isocyanate group-containing compound, wherein at least 10 mole % of a carboxylic group in said reaction product is neutralized with an inorganic metal.

Abstract: The object of the present invention is to provide a golf ball having the individualized appearance as well as the improved visibility, which the mark should inherently provide, by imparting the luster (brilliance) to the mark, without lowering the durability of the mark, even if the mark is printed with the ink composition which the luster material is blended into. The golf ball of the present invention comprises a mark made from an ink composition, wherein the ink composition comprises a pigment, and a luster material having a core layer with a smooth surface and a metal covering the core layer.

Abstract: The object of the present invention is to provide a golf ball having the individualized appearance as well as the improved visibility, which the mark should inherently provide, by imparting the luster (brilliance) to the mark, without lowering the durability of the mark, even if the mark is printed with the ink composition which the luster material is blended into. The golf ball of the present invention comprises a mark made from an ink composition, wherein the ink composition comprises a pigment, and a luster material having a light reflecting core layer and at least one light interference layer coated on the light reflecting core layer.