POLYISOCYANATE-BASED ANTI-CORROSION COATING Russian patent published in 2015 - IPC C08G18/09 C08G18/18 C08G18/48 C09D5/08 

FIELD: chemistry.

SUBSTANCE: present invention relates to polyisocyanurate reactive compositions which are well suited for anticorrosion, wear-resistant coatings. Described is a polyisocyanate-based non-syntactic coating composition obtained by reacting an organic polyisocyanate with a compound containing isocyanate-reactive hydrogen atoms with an isocyanate index of more than 1000% in the presence of a trimerisation catalyst and in the absence of polymeric polyols. The invention also describes a reaction mixture for producing a polyisocyanate-based non-syntactic coating composition, use of the polyisocyanate-based coating composition, a method of inhibiting corrosion of metal surfaces and article comprising a substrate and a film coating on the substrate, where said film coating contains the coating composition.

EFFECT: when applied as a coating on metal substrates, providing excellent corrosion inhibition, fast curing at slightly high temperature, enabling use at high temperature, excellent adhesion and flexibility, very good impact resistance, low transfer of wet steam, as well as minimal cathodic disbonding, ie delamination due to corrosion.

12 cl, 2 ex, 2 tbl, 2 dwg