Patent ID: 6136942
Filing Date: 2000-10-24
Classification: C08G,C09J

Abstract:
Humidity curing one-component polyurethane composition comprising a prepolymer represented by the following formula (I)(NCO).sub.m A(B).sub.n (I)in which A represents an (m+n)-valent radical as it is formed by the removal of (m+n) isocyanate groups from a (m+n)-valent polyurethane prepolymer, characterized in thatm is 1 or 2,n is 1 or 2, andB is a latent amino group, bonded to A by a urea group bond, whereby B is defined by one of the following formulas (II) or (III) ##STR14## whereby R represents an aliphatic hydrocarbon radical with 1 to 8 C-atoms, a cycloaliphatic hydrocarbon radical with 5 to 15 C-atoms, or a phenyl radical, or an alkylphenyl radical with 7 to 15 C-atoms,D represents a divalent aliphatic hydrocarbon radical with 1 to 8 C-atoms, a divalent cycloaliphatic hydrocarbon radical with 5 to 15 C-atoms, or a divalent alkylphenyl radical with 7 to 15 C-atoms, or,in the case of formula (II), R and D form together with the nitrogen atom a five-membered or six-membered ring, substituted by a hydrocarbon chain with 1 to 5 C-atoms, carrying the aldimine group, andE represents a phenyl radical, an alkylphenyl radical, an optionally substituted phenyloxy radical or an optionally substituted alkyloxy phenyl radical.