Patent ID: 6561924
Filing Date: 2003-05-13
Classification: A63B

Abstract:
A golf ball comprising:a solid core having a diameter ranging from 1.46 inches to 1.50 inches, the core having a distortion of less tan 0.138 inch under a constant load of 220 pounds, the solid core comprising cis-polybutadiene, zinc diacrylate in an amount of 25 to 30 parts per one hundred parts of the cis-polybutadiene, zinc oxide in an amount of 5 to 15 parts per one hundred parts of the cis-polybutadiene, zinc stearate in an amount of 1 to 10 parts per one hundred parts of the cis-polybutadiene, peroxide in an amount of 0.5 to 1.5 parts per one hundred parts of the cis-polybutadiene, and tungsten in an amount of 2 to 10 parts per one hundred parts of the cis-polybutadiene; a boundary layer covering the core, the boundary layer comprising a thermoplastic material having a Shore D hardness between 55 and 70; a wound layer covering the boundary layer; and a cover comprising a polyurethane material covering the wound layer.