Golf Ball Layers Formed of Polyurethane-Based and Polyurea-Based Compositions Incorporating Block Copolymers
申请人:Wu Shenshen
公开号:US20090137342A1
公开(公告)日:2009-05-28
A golf ball including a core and a cover, wherein cover is formed from a composition comprising the reaction product of a prepolymer including a soft-segment comprising an amine-terminated polyether and a hard segment including a uretdione of hexamethylene diisocyanate; and an amine-terminated curing agent; wherein the amine-terminated polyether has the structure:
where x and z have a combined value of 3.6-8 and y is 9-50, R is an alkyl group having 1-20 carbons, a phenyl group, a cyclic group, or mixtures thereof, R
1
is —(CH
2
)
a
—, where a is 1-10, a phenylene group, a cyclic group, or a mixture thereof, and R
3
is hydrogen, a methyl group, or a mixture thereof.