Patent ID: 6478695
Filing Date: 2002-11-12
Classification: A63B,B29C,B29L

Abstract:
A golf ball comprising; a core and a cover enclosing the core, said cover having at least one thin spherical layer with a uniform thickness of not more than 1.0 mm formed by injection molding a material satisfying formula (1):V&gE;(a/t2)âˆ’bâ€ƒâ€ƒ(1) wherein V is an injection molding material fill speed in cubic centimeters per second, t is a thickness of said at least one spherical layer in millimeters, a=0.04M2âˆ’3.75M+137.5, and b=âˆ’1.49/Mâˆ’0.57, and M is a melt flow rate in grams per 10 minutes at 190Â° C. of the injection molding material for said at least one thin spherical layer.