Patent ID: 8586697
Filing Date: 2013-11-19
Classification: C08G,C09D

Abstract:
1. A method of self-healing cured coatings, which comprises heating a coating of a cured coating composition for a period of at least 10 minutes to a temperature which lies at least 25° C. above the glass transition temperature of the coating wherein said coating composition comprises as constituent components (A) at least one ester which has at least two hydroxyl groups, formally constructed of (B)at least one nonblocked or blocked di- or polyisocyanate, and (C) at least one polyhydroxy compound selected from the group consisting of polyacrylate polyols, polyester polyols, polyurethane polyols; polyurea polyols; polyester polyacrylate polyols; polyester polyurethane polyols; polyurethane polyacrylate polyols, polyurethane-modified alkyd resins; fatty acid-modified polyester polyurethane polyols, copolymers with allyl ethers, graft copolymers from the stated groups of compounds and mixtures of the stated binders.