Golf ball material, golf ball and method for preparing golf ball material

A golf ball material comprising, in admixture:

• (A) ultrafine particles of an oxygen-containing inorganic metal compound which does not include a zinc cationic species (A3) and/or an oxygen-containing inorganic metal compound in masterbatched form which does not include a zinc cationic species (A4);
• (B) one or more polymers selected from the group consisting of multi-component polyamides;
• (C) one or more acid-containing polymers selected from the group consisting of olefin-unsaturated carboxylic acid copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester terpolymers, unsaturated carboxylic anhydride-containing polymers, unsaturated dicarboxylic acid-containing polymers and unsaturated dicarboxylic acid half ester-containing polymers, having an acid content of from 0.5 to 30 wt %;
• and
• (D) an ionomer which includes at least a zinc cationic species,
• wherein component (B) includes at least a ternary polyamide selected from the group consisting of polyamide 6/66/12, polyamide 6/66/69, polyamide 6/66/610, polyamide 6/66/612 and polyamide 6/612/12.

A method for preparing a golf ball comprising a part molded from a golf ball material which is composed of, in admixture:

• (A) an oxygen-containing inorganic metal compound;
• (B) one or more polymers selected from the group consisting of multi-component polyamides;
• and
• (C) one or more acid-containing polymers selected from the group consisting of olefin-unsaturated carboxylic acid copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester terpolymers, unsaturated carboxylic anhydride-containing polymers, unsaturated dicarboxylic acid-containing polymers and unsaturated dicarboxylic acid half ester-containing polymers, having an acid content of from 0.5 to 30 wt %,
• the method being comprised of blending together components B and C to form an acid-containing polymer blend composition, then mixing component A into the acid-containing polymer blend composition so as to carry out a reaction which neutralizes the acids in the acid-containing polymer blend composition, and molding the resulting mixture to form the part,
• wherein component (B) includes at least a ternary polyamide selected from the group consisting of polyamide 6/66/12, polyamide 6/66/69, polyamide 6/66/612 and polyamide 6/612/12.

A method for preparing a golf ball material which is composed of, in admixture:

• (A) ultrafine particles of an oxygen-containing inorganic metal compound which does not include a zinc cationic species (A3) and/or an oxygen-containing inorganic metal compound in masterbatched form which does not include a zinc cationic species (A4);
• (B) one or more polymers selected from the group consisting of multi-component polyamides;
• (C) one or more acid-containing polymers selected from the group consisting of olefin-unsaturated carboxylic acid copolymers, olefin-unsaturated carboxylic acid-unsaturated carboxylic acid ester terpolymers, unsaturated carboxylic anhydride-containing polymers, unsaturated dicarboxylic acid-containing polymers and unsaturated dicarboxylic acid half ester-containing polymers, having an acid content of from 0.5 to 30 wt %;
• and
• (D) an ionomer which includes at least a zinc cationic species,
• the method being comprised of blending together components B, C and D to form an acid-containing polymer blend composition, then mixing (A3) ultrafine particles of an oxygen-containing inorganic metal compound which does not include a zinc cationic species and/or (A4) an oxygen-containing inorganic metal compound which does not include a zinc cationic species into the acid-containing polymer blend composition so as to carry out a reaction which neutralizes the acid in the acid-containing polymer blend composition,
• wherein component (B) includes at least a ternary polyamide selected from the group consisting of polyamide 6/66/12, polyamide 6/66/69, polyamide 6/66/610, polyamide 6/66/612 and polyamide 6/612/12.