Patent ID: 6509434
Filing Date: 2003-01-21
Classification: C08G

Abstract:
A process of producing a polyurethane which comprises contacting an isocyanate prepolymer with a mixture of isomeric alkylthiated mononuclear aromatic amines and curing the resultant mixture, said mixture of isomeric alkylthiated mononuclear aromatic amines prior to said contacting comprising in the range of about 30 to about 70 mole percent of (i) at least one component of the formula and in the range of about 30 to about 70 mole percent of (ii) at least one component of the formula wherein Q1 is an alkyl group of from 1 to 4 carbon atoms, Q2 is, independently, a hydrogen atom or an alkyl group of from 1 to 4 carbon atoms, and each R is, independently an alkyl group of from 1 to 4 carbon atoms, and wherein the total percentage of (i) and (ii) in the mixture is at least 90 mole percent, such mixture optionally containing up to 10 mole percent of one or more isomers of (i) and (ii).