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US 8,557,947 B2Granted
Compositions useful in golf balls
AssigneesThe Hanson Group, LLC, Formost Golf Manufacturing, Ltd.
InventorsWallace Lee Hanson, Jr., Kevin W. Light, Ray Vernon Scott, Jr., Shenshen Wu
Life of this patent
Estimating the term…
Abstract
Curable polyurethane, polyurea and polyurethane/polyurea compositions that are particularly useful as the outer layer and/or at least one inner layer of golf balls, cured compositions, golf balls comprising the cured composition, and methods of increasing the initial velocity of a golf ball using the curable polyurethane, polyurea and polyurethane/poly urea compositions are disclosed.
Claims4
A composition, comprising:
- a. a prepolymer comprising the reaction product of:
- i. toluene diisocyanate;
- and
- ii. C36 dimerate polyester polyol;
- b. a first curing agent which is an 4,4′-methylenebis(2-ethylaniline);
- and
- c. at least one second curing agent selected from the group consisting of dimethylthio-2,4-toluenediamine;
- dimethylthio-2,6-toluenediamine;
- polycaprolactone triol;
- polytetramethyleneoxide-di-p-aminobenzoate;
- polyetheramine;
- dimer diol;
- and mixtures thereof;
- wherein said 4,4′-methylenebis(2-ethylaniline) is present at a level of about 40-80% equivalent weight, based on the total equivalent weight of said 4,4′-methylenebis(2-ethylaniline) and said second curing agent.
11 more elements
Dependencies are inferred from the claim text.