Patent ID: 6362359
Filing Date: 2002-03-26
Classification: C07C,C08G,Y10T

Abstract:
A compound containing modified hydrazide groups and corresponding to formula I whereinR represents the residue obtained by removing the isocyanate groups from a monomeric polyisocyanate, a polyisocyanate adduct or an NCO prepolymer, x represents ORâ€² or NHRâ€², Râ€² represents a group which is inert to isocyanate groups under the conditions used to form the compound of formula I, Râ€³ represents a divalent, linear or branched aliphatic group containing 2 to 10 carbon atoms, provided that there are at least two carbons between the oxygen atoms present on either side of Râ€³ in formula I, wherein the aliphatic group is optionally substituted by heteroatoms to form ether or ester groups, and n is 2 to 6.