Patent ID: 6371869
Filing Date: 2002-04-16
Classification: A63B

Abstract:
A thread-wound golf ball comprising:a core, a rubber thread layer surrounding said core, and a cover formed of a mixture of ionomer resin, thermoplastic elastomer, and a tackifier, said cover having a Shore D hardness of at least 40 and not more than 65, wherein said core is a two-layered core including an inner layer core having a diameter of 24-33 mm and a JIS-A hardness of at least 5 and not more than 50, and an outer layer core of 0.5-5 mm in thickness surrounding said inner layer core, and having a Shore D hardness of at least 10 and not more than 60, diameter of 25-35 mm, constituted by thermoplastic resin and/or thermoplastic elastomer.