Golf ball compositions having in-situ or reactive impact modified silicone-urea or silicone urethane
View Patent ↗Modified silicone urea and modified silicone urethane polymers for use in golf equipment components to provide improved impact resistance upon contact with a golf club including reactive polymer alloys formed in situ from silicone-ureas and/or silicone-urethanes and impact resistant polymers and oligomers.
1. A golf ball comprising a core and a cover, wherein the cover is formed from a composition comprising:
a first component consisting essentially of a reaction product of
an isocyanate; and
an amine-terminated component;
a second component comprising a silicone having oxirane functionality; and
a third component comprising an impact resistant polymer.
2. The golf ball of claim 1 , wherein the impact resistant polymer comprises ethylene-n-butyl acrylate-glycidyl acrylate, maleic anhydride grafted ethylene-butene copolymer, maleic anhydride grafted ethylene-hexene copolymer, maleic anhydride grafted ethylene-octene copolymer, ethylene-n-butyl acrylate-carbon monoxide, acid copolymers, chemically-modified ethylene-propylene rubber, EPDM rubber, ABS, MBS, SEBS-g-MA, or any combination thereof.
3. The golf ball of claim 1 , wherein the first component is saturated.
4. The golf ball of claim 1 , further comprising a curing agent selected from the group consisting of an amine-terminated curing agent, a hydroxyl-terminated curing agent, and a combination thereof.
5. The golf ball of claim 4 , wherein the curing agent is an amine-terminated curing agent.
6. A golf ball, wherein at least a portion of the golf ball is formed from a composition comprising:
a first component comprising a polyurea prepolymer that is the reaction product of an isocyanate and an amine-terminated component;
a second component comprising a silicone having oxirane functionality; and
a third component comprising an impact resistant polymer.
7. The golf ball of claim 6 , comprising a core, an inner cover layer, and an outer cover layer, wherein the inner cover layer is formed from the composition.