Golf ball having a polyurethane cover
AssigneeCallaway Golf Company
InventorPijush K. Dewanjee
Life of this patent
Estimating the term…
Abstract
A golf ball having a polyurethane cover composed of a blend of polyurethane prepolymers is disclosed herein. The blend may be a dual blend with a TDI-based polyurethane prepolymer blended with a second diisocyanate polyurethane prepolymer, typically a PPDI-based polyurethane prepolymer. The blend may also be a tri-blend with a TDI-based polyurethane prepolymer blended with two other diisocyanate polyurethane prepolymers, typically two different PPDI-based polyurethane prepolymers. The golf ball has a durability of at least 3.5 on a shear test rating of the cover. The golf ball of the present invention also demonstrates tremendous distance using a BIG BERTHA® HAWKEYE® driver.
Claims10
A golf ball comprising:
- a core;
- a boundary layer encompassing the core;
- and
- a polyurethane cover formed from reactants comprising a p-phenylene diisocyanate terminated polyester prepolymer in an amount up to 90 parts, a p-phenylene diisocyanate terminated polyether prepolymer in an amount up to 90 parts, 10 to 40 parts of a toluene diisocyanate polyurethane prepolymer, and at least one curing agent.
Dependencies are inferred from the claim text.