Water-based porphyrin coating system

摘要

A polymerisable porphyrin suitable for use in the formulation of water-based resins or coating compositions characterised in that it comprises the reaction product of: (a) one or more compounds selected from the group consisting of pyrrole and N-(lower)alkyl pyrroles, any of which may be optionally ring substituted with one or two non-deleterious substituents; (b) at least one alpha , beta -unsaturated aldehyde; (c) at least one unsaturated and/or polymerisable organic acid. Water-based resins or coating compositions or systems, containing such polymerisable porphyrins.