Back to results
US 6,958,379 B2Granted
Polyurea and polyurethane compositions for golf equipment
AssigneeAcushnet Company
InventorsShenshen Wu, David A. Bulpett, Murali Rajagopalan
Life of this patent
Estimating the term…
Abstract
Golf equipment having improved cut and shear resistance that includes a polyurea composition, preferably saturated and/or water resistant, formed of a polyurea prepolymer and a curing agent, wherein the polyurea prepolymer includes an isocyanate and an amine-terminated compound, and wherein the curing agent includes a hydroxy-terminated curing agent, amine-terminated curing agent, or a mixture thereof.
Claims25
A golf ball comprising a core and a cover, wherein the cover is formed from a reactive product composition comprising:
- a prepolymer comprising:
- an isocyanate;
- and
- an amine-terminated compound selected from the group consisting of:
- and mixtures thereof, wherein n, x, y, and z are about 1 or greater, wherein R comprises alkyl groups having about 1 to about 20 carbon atoms;
- phenyl groups;
- cyclic groups;
- or mixtures thereof, wherein R1 and R2 comprise alkylene groups having about 1 to about 20 carbon atoms, phenylene groups, cyclic groups, or mixtures thereof, and wherein R3 comprises a hydrogen, a methyl group, or a mixture thereof;
- and
- a curing agent.
7 more elements
A golf ball comprising:
- a core;
- a layer disposed about the core to create an inner ball;
- and
- a cover cast onto the inner ball, wherein the cover comprises a light stable polyurea material comprising:
- a prepolymer comprising at least one isocyanate and at least one amine-terminated compound selected from the group consisting of amine-terminated hydrocarbons, amine-terminated polyethers, amine-terminated polyesters, amine-terminated polycaprolactones, amine-terminated polycarbonates, amine-terminated polyamides, and mixtures thereof;
- and
- at least one curing agent comprising a hydroxy-terminated curing agent, an amine-terminated curing agent, or a mixture thereof.
4 more elements
A golf ball comprising:
- a core;
- an intermediate layer having a hardness of about 60 Shore D or greater;
- and
- a cover formed of a polyurea material comprising at least one isocyanate and at least one amine-terminated compound selected from the group consisting of amine-terminated hydrocarbons, amine-terminated polyethers, amine-terminated polyesters, amine-terminated polycaprolactones, amine-terminated polycarbonates, amine-terminated polyamides, and mixtures thereof, wherein the cover has a hardness of about 30 Shore D to about 60 Shore D, and
- wherein the golf ball has a COR of about 0.800 or greater.
2 more elements
Dependencies are inferred from the claim text.