Patent ID: 6095932
Filing Date: 2000-08-01
Classification: A63B

Abstract:
A wound golf ball comprising; a solid center having thread rubber wound thereon and a cover surrounding the wound center,said solid center having an outer diameter of 30 to 36 mm and a rebound height of 95 to 108 cm when dropped from a height of 120 cm, said cover having a multi-layer structure including an outer layer and an inner layer,said outer layer composed mainly of an ionomer resin and has a gage of 0.4 to 1.5 mm, a Shore D hardness of 38 to 55 and a specific gravity of 0.95 to 1.2, andsaid inner layer composed mainly of an ionomer resin loaded with a filler containing at least 50% by weight of barium sulfate and not containing zinc oxide and magnesia, said cover inner layer having a gage of 0.6 to 1.5 mm, a Shore D hardness of 55 to 68 and a specific gravity of 1.1 to 1.4, said cover inner layer having a higher hardness than said outer layer.