Compositions for golf equipment
AssigneeAcushnet Company
InventorsShenshen Wu, Shawn Ricci
Life of this patent
Estimating the term…
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 comprising: a prepolymer comprising: an aliphatic isocyanate mixture comprising dimerized uretdione of HDI and trimerized isocyanurate of HDI; a first amount of modified polyoxypropylene diamine having a formula: where x=1-70; R1 and R2 each independently=a C1-20 alkyl group, phenyl, or a mixture thereof; and R3=CH3, or a mixture thereof; and a caprolactone; and a curative comprising a mixture of 3,5-diethyl-2,4-toluenediamine and 3,5-diethyl-2,6-toluenediamine.
Claims19
A golf ball comprising a core, an inner cover layer, and an outer cover layer, the outer cover layer being formed from a polyurea comprising:
- a prepolymer comprising:
- an aliphatic isocyanate mixture comprising dimerized uretdione of HDI and trimerized isocyanurate of HDI;
- a first amount of modified polyoxypropylene diamine having a formula:
- where x=1-70;
- R1 and R2 each independently=a C1-20 alkyl group, phenyl, or a mixture thereof;
- and R3=CH3;
- and
- a caprolactone;
- and
- a curative comprising a mixture of 3,5-diethyl-2,4-toluenediamine and 3,5-diethyl-2,6-toluenediamine.
A golf ball consisting of a core and an outer cover layer, the outer cover layer being formed from a polyurea comprising:
- a prepolymer comprising:
- an aliphatic isocyanate mixture comprising dimerized uretdione of HDI and trimerized isocyanurate of HDI;
- a modified polyoxypropylene diamine;
- and
- a caprolactone;
- and
- a curative comprising a mixture of 3,5-diethyl-2,4-toluenediamine and 3,5-diethyl-2,6-toluenediamine.
Dependencies are inferred from the claim text.