Patent ID: 6267692
Filing Date: 2001-07-31
Classification: A63B

Abstract:
A multi-piece solid golf ball comprising; a solid core and a cover consisting of inner and outer layers surrounding the core, said solid core has a distortion of at least 2.7 mm under an applied load of 100 kg, said inner cover layer is formed of a thermoplastic polyester elastomer, said outer cover layer is formed of a thermoplastic polyurethane elastomer, one or more ionomer resins having a Shore D hardness of at least 55 are mixed with the thermoplastic polyester elastomer of said inner cover layer, said inner cover layer has Shore D hardness of 28 to 51, said outer cover layer has a Shore D hardness of 30 to 55, and said outer cover layer has a thickness of 1.0 to 2.5 mm.