Highly Neutralized Polymer Material with Heavy Mass Fillers for a Golf Ball

A golf ball comprising:

• a core;
• a cover layer formed over the core,
• wherein at least one of the core and the cover layer comprises a blend of 1) a copolymer of an alpha-olefin and an alpha, beta-unsaturated carboxylic acid, 2) an alpha-olefin and an alkyl acrylate, 3) a fatty acid or salt of a fatty acid, and 4) a heavy mass filler in an amount ranging from 10 parts by weight to 50 parts by weight of the material, the heavy mass filler having a density greater than the copolymer;
• wherein the blend is partially to highly neutralized

A golf ball comprising:

• a core;
• a boundary layer formed over the core;
• and
• a cover formed over the core, the cover composed of a fast chemical reaction polyurethane material formed from reactants comprising diisocyanate and a polyol;
• wherein the core or the boundary layer are composed of a thermoplastic material comprising
• a copolymer of an alpha-olefin and an alpha, beta-unsaturated carboxylic acid,
• an alpha-olefin and an alkyl acrylate,
• a fatty acid or salt of a fatty acid,
• a heavy mass filler in an amount ranging from 10 parts by weight to 50 parts by weight of the material, the heavy mass filler having a density greater than the copolymer,
• wherein the thermoplastic material is neutralized from 50% to 100%.

A golf ball comprising:

• a core comprising a polybutadiene mixture;
• a boundary layer formed over the core, the boundary layer composed of a thermoplastic material comprising
• a copolymer of an alpha-olefin and an alpha, beta-unsaturated carboxylic acid,
• an alpha-olefin and an alkyl acrylate,
• a fatty acid or salt of a fatty acid,
• a heavy mass filler in an amount ranging from 10 parts by weight to 50 parts by weight of the material, the heavy mass filler having a density greater than the copolymer,
• wherein the thermoplastic material is neutralized from 50% to 100%;
• and
• a cover formed over the core, the cover composed of a fast chemical reaction polyurethane material formed from reactants comprising a diisocyanate and a polyol blend, wherein the fast chemical reaction polyurethane material has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240, and a thickness ranging from 0.010 inch to 0.044 inch.

A golf ball comprising:

• a core comprising a polybutadiene mixture, the core having a diameter ranging from 1.35 inches to 1.64 inches and having a PGA compression ranging from 50 to 90;
• a boundary layer formed over the core, the boundary layer composed of a thermoplastic material, the boundary layer having a thickness ranging from 0.020 inch to 0.075 inch, the thermoplastic material having a Shore D hardness ranging from 50 to 70 as measured according to ASTM-D2240, wherein the thermoplastic material comprises
• a copolymer of an alpha-olefin and an alpha, beta-unsaturated carboxylic acid,
• an alpha-olefin and an alkyl acrylate, and
• a fatty acid or salt of a fatty acid,
• a heavy mass filler in an amount ranging from 10 parts by weight to 50 parts by weight of the material, the heavy mass filler having a density greater than the copolymer,
• wherein the thermoplastic material is neutralized from 50% to 100%;
• and
• a cover formed over the boundary layer, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising and a polyurethane prepolymer and a polyol, wherein the polyurethane material has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240, a thickness ranging from 0.015 inch to 0.044 inch, and an aerodynamic surface geometry thereon.

A golf ball comprising:

• a core having a diameter ranging from 1.35 inches to 1.64 inches and having a PGA compression ranging from 50 to 90, the core composed of a thermoplastic material comprising
• copolymer of an alpha-olefin and an alpha, beta-unsaturated carboxylic acid,
• an alpha-olefin and an alkyl acrylate, and
• a fatty acid or salt of a fatty acid,
• a heavy mass filler in an amount ranging from 10 parts by weight to 50 parts by weight of the material, the heavy mass filler having a density greater than the copolymer;
• wherein the thermoplastic material is neutralized from 50% to 100%;
• a boundary layer formed over the core, the boundary layer composed of an ionomer material, the boundary layer having a thickness ranging from 0.020 inch to 0.075 inch, the ionomer material having a Shore D hardness ranging from 50 to 70 as measured according to ASTM-D2240;
• and
• a cover formed over the boundary layer, the cover composed of a fast chemical reaction aliphatic polyurethane material formed from reactants comprising and a polyurethane prepolymer and a polyol, wherein the polyurethane material has a Shore D hardness ranging from 30 to 60 as measured according to ASTM-D2240, a thickness ranging from 0.015 inch to 0.044 inch, and an aerodynamic surface geometry thereon.

A polymer blend for a golf ball comprising:

• 50 parts of a high acid ionomer;
• 50 parts of a metallocene catalyzed ethylene alpha-olefin copolymer;
• 7 to 10 parts magnesium hydroxide;
• approximately 67 parts of an oleic acid;
• and
• 35 to 65 parts barium sulfate.