Patent ID: 8888610
Filing Date: 2014-11-18
Classification: A63B,C08G,C08L

Abstract:
1. A golf ball comprising a core, a mid layer positioned outside the core, and a cover positioned outside the mid layer, wherein the core comprises a center and an envelope layer positioned outside the center, a thickness of the envelope layer is equal to or greater than 8 mm but equal to or less than 18 mm, a ratio (Do/De) of an amount of compressive deformation Do of the center when a load of 981 N is applied thereto, to an amount of compressive deformation De of the core when a load of 981 N is applied thereto, is equal to or greater than 1.5 but equal to or less than 2.5, and a ratio (Do/Dc) of the amount of compressive deformation Do to an amount of compressive deformation Dc of the golf ball when a load of 981 N is applied thereto is equal to or greater than 1.8.