Patent ID: 6193616
Filing Date: 2001-02-27
Classification: A63B,C08L

Abstract:
A golf ball comprising a core and a cover, wherein said cover comprises:from less than 25 to about 10 percent by weight of at least one hard ionomer which is a sodium, zinc or lithium salt of the copolymer of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, wherein said hard ionomer has a hardness greater than 50 on the Shore D scale and a flexural modulus of from about 15,000 to about 70,000 psi; and,from greater than 75 to about 90 percent by weight of at least one soft ionomer which is a sodium or zinc salt of a terpolymer of an olefin having 2 to 8 carbon atoms, acrylic acid, and an unsaturated monomer of the acrylate ester class having from 1 to 21 carbon atoms, wherein said soft ionomer has a hardness from about 20 to about 40 on the Shore D scale and a flexural modulus of from about 2,000 to 10,000 psi.