| abstract |
A powder coating composition comprising n 1. an unsaturated polyester which is prepared by reacting n A. terephthalic acid or its lower alkyl ester, and n B. an α-olefinic dicarboxylic acid, and n C. optionally an organic acid having at least three carboxy groups in the molecule or its functional derivative, and n D. an aliphatic or alicyclic glycol; and n 2. an organic peroxide and a molecular terminal cross linking or bridging agent, said powder coating composition being able to form a film having excellent properties, such as excellent gloss, hardness, impact strength, heat resistance, weatherability and corrosion resistance. |