Cationic polyurea cover compositions for a multi-layer golf ball

摘要

Golf balls that have at least one layer formed from a cationic polyurea material. In particular, the compositions of the invention, which include a polymer backbone including urea linkages with cationic groups, may be formed from an isocyanate-containing component and an isocyanate-reactive component, at least one of which includes precursor cationic groups, in the presence of an alkylating, quaternizing, or ternarizing agent.

主权项

1. A golf ball comprising a core and a cover, wherein the cover comprises a castable reactive liquid material comprising:
a polyurea prepolymer formed from the reaction product of an isocyanate-containing component and an amine-terminated component, wherein the isocyanate-containing component consists of the reaction product of a diisocyanate and glycerol-α-bromohydrin ternarized with dimethyl sulfide, and wherein the isocyanate-containing component comprises at least one ═S; a curative comprising an amine-terminated curing agent comprising between about 1 percent to about 50 percent ═S by weight of the amine-terminated curing agent; at least one quaternizing agent comprising dialkyl sulfate present in an amount sufficient to react with at least about 70 percent of ═S; and a flow modifier comprising zinc stearate, wherein the flow modifier is present in an amount of about 15 pph to about 75 pph.