Two-component composition for coating metal, plastics, ceramics or natural material, e.g. internal pipe coating, contains polyisocyanate prepolymer with polyether groups bound by allophanate groups and polyamine with primary amino groups

摘要

New compositions (I) contain (A) a polyisocyanate prepolymer, which has polyether groups bound by allophanate groups, (B) polyamines with not less than 2 primary amino groups and (C) optionally other polyisocyanates. Independent claims are included for (1) coatings obtained from 2-component coating systems (I); (2) substrates coated with these coatings.