Patent ID: 8524807

Claim:
A compound VB of formula (I) or (II): where R 1 and R 3 are each independently an alkyl, cycloalkyl, aryl or arylalkyl group which has 1 to 12 carbon atoms and optionally has ether groups or halogen atoms, and R 2 is a hydrogen atom or an alkyl, cycloalkyl, aryl or arylalkyl group having 1 to 12 carbon atoms, or R 2 and R 1 together are a divalent hydrocarbon radical which is part of an optionally substituted carbocyclic ring having 5 to 8 carbon atoms, and R 3 is an alkyl, cycloalkyl, aryl or arylalkyl group which has 1 to 12 carbon atoms and optionally has ether groups or halogen atoms; or R 2 and R 3 together are a divalent hydrocarbon radical which is part of an optionally substituted carbocyclic ring having 5 to 8 carbon atoms, and R 1 is an alkyl, cycloalkyl, aryl or arylalkyl group which has 1 to 12 carbon atoms and optionally has ether groups or halogen atoms; R 4 and R 5 are each independently an alkyl, cycloalkyl, aryl or arylalkyl group which has 1 to 12 carbon atoms and optionally has ether groups or halogen atoms; A is an (a+b)-valent radical of a polyamine-polyepoxide adduct after removal of (a+b) terminal primary amino groups, wherein the polyamine is at least one polyamine A1 selected from the group consisting of: a polyalkyleneamine having terminal primary amino groups and at least one secondary amino group per molecule; and an ether-containing diamine of formula (VIII): wherein x is an integer from 0 to 50, y is an integer from 0 to 100, z is an integer from 1 to 50, and (x+z) is an integer from 1 to 100; a is an integer from 0 to 4; and b is an integer from 1 to 4; with the provisos that the sum of a and b is an integer from 1 to 4, and that the parent polyepoxide of the polyamine-polyepoxide adduct is at least one polyepoxide E having an epoxy equivalent weight (EEW) of 65 to 500 g/eq.