TRIAZINE GROUP-CONTAINING SOLID POLYURETHANE CURING AGENT, PRODUCTION OF TRIAZINE GROUP-CONTAINING COMPOUND, PRODUCTION OF TRIAZINE GROUP-CONTAINING SOLID POLYURETHANE CURING AGENT AND ITS USE

摘要

PROBLEM TO BE SOLVED: To obtain a triazine group-containing solid polyurethane curing agent useful for producing a powder lacquer to provide a lacquer film having a high luster or matted surface, light resistance and weather resistance especially, by cross-linking. ;SOLUTION: This triazine group-containing solid polyurethane curing agent comprises a reaction product of (A) a polyaddition compound containing at least one uretedione group produced by reacting a uretedione group-containing polyisocyanate with a hydroxyl group-containing chain extender and (B) a compound containing at least one C=N- bond (the equivalent ratio of uretedione group to C=N- bond is 1.0:0.05 to 1.0:1.0) and has 40-130°C melting point and 2 mass % free NCO- content.;COPYRIGHT: (C)2000,JPO