Pegamento termofusible de curado por luz UV para la laminación de láminas transparentes

Composición de pegamento termofusible de curado por luz UV que comprende (a) al menos un uretan(met)acrilato de curado por luz UV, de manera que el uretan(met)acrilato se obtiene por medio de la reacción de un prepolímero de poliuretano NCO-funcional con un exceso molar de (met)acrilato hidroximodif...

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Bibliographische Detailangaben
Hauptverfasser:	MORGENEYER, Thomas, MECKEL-JONAS, Claudia, LOTZ, Jürgen
Format:	Patent
Sprache:	spa
Schlagworte:	ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS DYES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM 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 NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS AS ADHESIVES
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Beschreibung
Zusammenfassung:	Composición de pegamento termofusible de curado por luz UV que comprende (a) al menos un uretan(met)acrilato de curado por luz UV, de manera que el uretan(met)acrilato se obtiene por medio de la reacción de un prepolímero de poliuretano NCO-funcional con un exceso molar de (met)acrilato hidroximodificado y/o aminmodificado; (b) al menos un monómero de (met)acrilato u oligómero de (met)acrilato, de manera que al menos un monómero de (met)acrilato u oligómero de (met)acrilato contiene un (met)acrilato, modificado con ácido, con un índice de acidez de 50 a 400 mg KOH/g, preferiblemente de 100 a 200 mg KOH/g; y (c) al menos un fotoiniciador. The present invention relates to a UV-curable hot-melt adhesive for laminating transparent films, in particular, on molded bodies made of wood materials that are coated with melamine or PVC. The hot-melt adhesives contain: at least one UV-curable urethane (meth)acrylate, wherein the urethane (meth)acrylate can be obtained by converting an NCO-functional polyurethane prepolymer with a molar excess of hydroxy and/or amine-modified (meth)acrylates; at least one (meth)acrylate monomer or oligomer, wherein the at least one (meth)acrylate monomer and/or oligomer comprises an acid-modified (meth)acrylate with an acid value of 50 to 400 mg KOH/g; and at least one photoinitiator. Other aspects of the present invention are methods for laminating a film onto a molded body using said hot-melt adhesives, and to the composite materials produced in this manner.