Patent Number: 6,165,564

Title: UV-curable clear coat for golf balls

Abstract: A UV-curable coating for use with golf balls and other substrates includes one or more low viscosity polyether acrylate, a functional carbodiimide resin, one or more low viscosity aliphatic urethane polyacrylate oligomer, and a photoinitiator selected from one or more of mono-aryl ketones, trimethylbenzoyldiphenyl phosphinates, and/or phosphine oxides. In addition, a method of curing a UV-curable coating is disclosed. The method includes the steps of spraying the formulation onto the exterior of a substrate, surrounding the substrate in an inert gas enviromnent, and irradiating the substrate with ultraviolet radiation from a doped medium pressure mercury vapor lamp.

Inventors: Crast; Steven C. (Oceanside, CA), Dineros; Ramon Buella (Oceanside, CA)

Assignee: Callaway Golf Company

International Classification: A63B 37/00 (20060101); A63B 37/12 (20060101); C08F 002/50 ()

Expiration Date: 12/26/2017