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 at least one layer comprising a blend of a high-crystalline acid polymer and a composition comprising:
a polyurea prepolymer formed from the reaction product of a diisocyanate and an amine-terminated component; wherein the prepolymer comprises a neutralizing agent comprising dialkyl sulfate; a curative comprising:
an amine-terminated curing agent having at least one of the following general formulas:
H2N—R1—NH2;R2HN—R1—NHR2;R3R2N—R1—NR2R3;H2N—R1—NHR2;R3R2N—R1—NH2; orR3R2N—R1—NHR2 where R1 comprises unsubstituted or substituted straight chain or branched aliphatic groups, unsubstituted or substituted aromatic groups, or mixtures thereof, wherein R2 and R3 independently comprise an alkyl group, an aryl group, or an aralkyl group, and wherein the amine-terminated curing agent further comprises about 5 percent to about 25 percent precursor cationic groups by weight of the amine-terminated curing agent; and wherein between about 20 percent and 70 percent of the precursor cationic groups are neutralized.