Powder coating composition.

摘要

A powder coating composition, for use as a film coating having an excellent outer appearance, superior storing stability and excellent low temperature cure. The coating composition comprises a base resin, curing agent and curing catalyst. One of the base resin and curing agent includes at least one of a compound and resin containing two or more of a carboxyl group in one molecule, the other of them includes at least one of a compound and resin containing two or more of a glycidyl group in one molecule. The functional group-equivalent ratio of the glycidyl group to the carboxyl group in both the base resin and curing agent is in a range of from 0.5 to 2.0. The curing catalyst comprises an amine compound in a complex form enveloped in both or one of a compound and resin. The ratio of curing catalyst to the base resin and curing agent is 0.05 to 3.0 % by weight.