Patent ID: 6077929
Filing Date: 2000-06-20
Classification: C09D

Abstract:
An internally blocked polyamine crosslinker a cyclic ketimine or aldimine of the following formula ##STR8## wherein B is a monomeric or oligomeric backbone;R.sub.1 is hydrogen or a substituted or unsubstituted hydrocarbon group, optionally containing a functional group;at least one of R.sub.2 and R.sub.3 is a substituted or unsubstituted alkylene group;at most one of R.sub.2 or R.sub.3 is a group of the formula (II) or (III) ##STR9## wherein R.sub.4 is a substituted or unsubstituted alkylene group, and the N atom is attached to both B and the other of R.sub.2 or R.sub.3,R.sub.5 is a substituted or unsubstituted alkylene group and R.sub.6 is hydrogen or a substituted or unsubstituted alkyl group, while either R.sub.5 or R.sub.6 is attached to B;n.gtoreq.2; andthe ring defined by R.sub.3, R.sub.2, and N.dbd.C in formula (I) consists of 4-12 atoms.