Compositions for golf equipment

Details Compositions for golf equipment Compositions for golf equipment

2007-11-15

2009-06-23

Buttner, David (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having at least one -n=c=x group as well as...

C528S068000, C473S374000, C473S378000

Reexamination Certificate

active

07550549

ABSTRACT:
A golf ball comprising a core, an inner cover layer, and an outer cover layer, the outer cover layer being formed from a polyurea including a caprolactone-free prepolymer of an aliphatic isocyanate mixture comprising dimerized uretdione of HDI and trimerized isocyanurate of HDI (or, optionally, trimerized biuret of HDI) and a first amount of modified polyoxypropylene diamine having a formula:where x=1-70; R1and R2each independently=a C1-20alkyl group, phenyl, or a mixture thereof; and R3═H, CH3, or a mixture thereof; and a curative including a mixture of 3,5-diethyl-2,4-toluenediamine and 3,5-diethyl-2,6-toluenediamine.

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