Hardeners for epoxy resin coatings

摘要

The invention relates to hardeners for epoxy resin containing secondary amino groups having dialkyl amino phenyl groups. The hardeners have a surprisingly low viscosity and harden surprisingly fast together with the epoxy resins, even in moist, cold conditions, and without blushing to form films with high hardness and stability. They are suitable, in particular, for low-emission coatings.

主权项

1. Method for hardening at least one epoxy resin, comprising: hardening the epoxy resin by reacting with a hardener, the hardener containing one or more amines with one or more amino groups of formula (I), wherein R represents a hydrogen atom or an alkyl group with 1 to 12 C atoms; R1 and R2 each independently represent an alkyl or arylalkyl group with 1 to 12 C atoms, or together represent an alkylene group with 4 to 5 C atoms; and Y represents a hydrogen atom or an alkyl or alkoxy group with 1 to 12 C atoms.