Polyester resin for coil coating powder coating with improved weather resistance and powder coating composition containing the same

摘要

The present invention relates to a polyester resin for coil coating powder coating with improved weather resistance and a powder coating composition containing the same, and more particularly, to a carboxy prepared by adding a divalent or more acid to a prepolymer prepared using an acid component and an alcohol component. PCM (Pre-coated metal: pre-coated metal coating) by providing powder coating composition for coil coating using polyester resin and triglycidyl isocyanurate (TGIC) and hydroxyalkyl amide (Primid XL-552) as curing agent Polyester) for coil coating powder coating, which has excellent weather resistance, high temperature fast curing, and excellent weather resistance, such as leveling, impact resistance, OT bending, etc. It relates to a powder coating composition containing.