Patent ID: 8324336

Claim:
A composition, comprising: a. a polyurethane prepolymer comprising the reaction product of: i. toluene diisocyanate; and ii. polytetramethylene ether glycol; b. 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.