COMPOSICIONES DE REVESTIMIENTO EN POLVO

• Main Authors: CHANG, YEONG-HO, WITZEMAN, JONATHAN STEWART
• Format: Patent
• Language: Spanish
• Published: 16.11.1994
• Edition: 4
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; 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; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

SE DESCRIBEN COMPOSICIONES DE REVESTIMIENTO DE MATERIAL PULVERIZADO TERMOAJUSTANTES FORMADAS POR POLIESTERES SEMICRISTALINOS Y COMPUESTOS DE EPSILON-CAPROLACTAM BLOQUEADO BIS(1 CIANO TURAS RELATIVAMENTE SUAVES Y UTILIZANDO LOS TIEMPOS DE CURADO NORMALMENTE UTILIZADOS PARA CURAR REVESTIMIENTOS DE MATERIAL PULVERIZADO (ENTRELAZADOS). AL UTILIZAR CONDICIONES DE CURADO EQUIVALENTES, LAS COMPOSICIONES DE REVESTIMIENTO DESCRITAS MUESTRAN UN GRADO MAYOR DE ENTRELAZADO QUE EL QUE MUESTRAN LAS COMBINACIONES DE POLIESTERES AMORFOS Y LOS COMPUESTOS DE EPSILONCAPROLACTAM BLOQUEADO BIS(1 Disclosed are thermosetting, powder coating compositions comprised of semi-crystalline polyesters and epsilon -caprolactam-blocked bis(1-cyanato-1-methylethyl) benzene compounds which are readily curable at relatively-mild temperatures and using cure times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters and the epsilon -caprolactam-blocked bis(1-cyanato-1-methylethyl)-benzene compounds.