[A THERMOSETTING POLYURETHANE MATERIAL FOR A GOLF BALL COVER(Corporate Docket Number PU2124)]

A golf ball comprising:

• a core comprising a polybutadiene mixture;
• a boundary layer formed over the core;
• and
• a cover formed over the boundary layer, the cover composed of a thermosetting polyurethane material formed from reactants comprising at least one polyurethane prepolymer and a curative blend comprising 4,4′-methylenebis-(2,6-diethyl)-aniline in an amount of 75 parts per one hundred parts of the curative blend and an aliphatic diamine in an amount of 25 parts per one hundred parts of the curative blend.

A golf ball comprising:

• a core comprising a polybutadiene mixture;
• a boundary layer formed over the core;
• and
• a cover formed over the boundary layer, the cover composed of a thermosetting polyurethane material formed from reactants comprising at least one aliphatic polyurethane prepolymer and a curative blend comprising an aromatic curative in an amount of 10 to 90 parts per one hundred parts of the curative blend and an aliphatic curative in an amount of 10 to 90 parts per one hundred parts of the curative blend.

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 blend of ionomer materials, the boundary layer having a thickness ranging from 0.020 inch to 0.075 inch, the blend of ionomer materials having a Shore D hardness ranging from 50 to 75 as measured according to ASTM-D2240;
• and
• a cover formed over the boundary layer, the cover composed of a thermosetting polyurethane material formed from reactants comprising at least one aliphatic polyurethane prepolymer and a curative blend comprising an aromatic curative in an amount of 10 to 90 parts per one hundred parts of the curative blend and an aliphatic curative in an amount of 10 to 90 parts per one hundred parts of the curative blend, wherein the thermosetting 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 blend of ionomer materials, the boundary layer having a thickness ranging from 0.020 inch to 0.075 inch, the blend of ionomer materials having a Shore D hardness ranging from 50 to 75 as measured according to ASTM-D2240;
• and
• a cover formed over the boundary layer, the cover composed of a thermosetting polyurethane material formed from reactants comprising at least one aromatic polyurethane prepolymer and a curative blend comprising an aromatic curative in an amount of 10 to 90 parts per one hundred parts of the curative blend and an aliphatic curative in an amount of 10 to 90 parts per one hundred parts of the curative blend, wherein the thermosetting 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.