HIGHLY REACTIVE POLYURETHANE POWDER COATING COMPOSITION, ITS MANUFACTURING METHOD, EFFECTIVE CATALYST FOR THE COMPOSITION, POWDER COATING CURING AGENT FOR MANUFACTURING POWDER COATING COATED LAYER, USE OF POLYMER AND CATALYST AND COATING COMPOSITION

• Main Authors: LOESCH HOLGER, SPYROU EMMANOUIL, WEIS JOERN VOLKER DR, GRENDA WERNER, WENNING ANDREAS DR
• Format: Patent
• Language: English
• Published: 25.11.2004
• Edition: 7
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To find a highly reactive uretdione group-containing polyurethane coating composition which is curable at very low temperatures and particularly suited in use for manufacturing a plastic and a highly gloss or matte powder coating layer having light stability and weatherability. SOLUTION: Since a metal hydroxide and a metal alcoholate strongly accelerate the redecomposition of the uretdione group, the curing temperature of the powder coating composition can be remarkably lowered when a uretdione group-containing powder coating curing agent is used. COPYRIGHT: (C)2005,JPO&NCIPI