CORROSION PROTECTION COMPOSITIONS BASED ON POLY-AZA MICHAEL ADDITION CHEMISTRY

A corrosion protection composition comprising a component A and a component B,wherein the component A comprises at least one acrylate compound AcC having one or more acryloyl groups (CH2=CHCO-) and/or methacryloyl groups (CH2=C(CH3)CO-) in a molecule; andwherein the component B comprises an amine compound AmC comprising at least amine group selected from primary amine groups, secondary amine groups and/or blocked amine groups, whereby the amine compound AmC preferably is a compound of the formula (Ia); X-(CH2NH2)n (Ia)wherein X represents an n-valent organic group having 1 to 80, preferably 1 to 16, carbon atoms and n represents a number between 1 and 10, preferably between 1 and 3;wherein the wherein the corrosion protection composition further comprises at least one anti-corrosion pigment CP, the at least one anti-corrosion pigment CP being:- at least one platelet-shaped anti-corrosion pigment PSP, in particular selected from the list consisting of iron mica, mica, zinc, aluminum and phyllosilicates, in particular talc and kaolinite, in an amount of 25 - 60 wt.-%, based on the total weight of the corrosion protection composition, and / or- at least one active anti-corrosive pigment AP, in particular selected from the list consisting of zinc dust, zinc oxide, zinc phosphate, calcium zinc phosphomolybdate, aluminum triphosphate, zinc iron phosphate, strontium zinc phosphosilicate, calcium phosphosilicate, and zinc aluminum phosphate, preferably zinc dust, zinc oxide and zinc phosphate, in particular zinc oxide, in an amount of 2 - 20 wt.-%, based on the total weight of the corrosion protection composition;wherein the sum of the acrylate compound AcC and the amine compound AmC (AcC + AmC) is from 10 - 60 wt.-%, based on the total weight of the corrosion protection composition; andwherein the molar ratio of the acryloyl groups (CH2=CHCO-) and methacryloyl groups (CH2=C(CH3)CO-) of the acrylate compound AcC, and optionally present epoxy groups of an optional epoxy resin EP present in the corrosion protection composition, to the amine groups of the amine compound AmC is from 0.75 - 1.25.