Strahlungshärtbare Zubereitungen

• Main Authors: SCHWALM, REINHOLD, MENZEL, KLAUS, ENENKEL, PETER, BECK, ERICH, KOENIGER, RAINER, PAULUS, WOLFGANG
• Format: Patent
• Language: German
• Published: 07.10.1999
• Edition: 6
• 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 BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; 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

Die Erfindung betrifft strahlungshärtbare Zubereitungen auf Basis ethylenisch ungesättigter Präpolymere und difunktionellen Estern von ethylenisch ungesättigen Carbonsäuren mit Diolen, welche eine lineare Alkylenkette mit 7 bis 14 C-Atomen aufweisen, ein Verfahren zur Beschichtung von Substraten mit diesen strahlungshärtbaren Zubereitungen und ihre Verwendung als Automobil-Topcoat. A radiation curable composition (I) comprises: (A) a prepolymer containing at least two olefinic double bonds per molecule; and (B) a diester of an alpha , beta -ethylenically unsaturated carboxylic acids with diols, having a linear 7-14C alkylene chain. Independent claims are included for: (i) a process for coating a substrate by application of (I) and curing by UV or electron beam irradiation; and (ii) the resulting coated substrate.