PMMA/PVDF FILM WITH PARTICULARLY HIGH WEATHERING STABILITY AND HIGH UV PROTECTIVE ACTION

• Main Authors: LASCHITSCH ALEXANDER, NUMRICH UWE, NEUHAEUSER ACHIM, DICKHAUT BAYER GUENTHER, GOLDACKER THORSTEN, ARNDT THOMAS
• Format: Patent
• Language: English; Korean
• Published: 21.04.2010
• Subjects: ADHESIVES; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; GENERAL PROCESSES OF COMPOUNDING; INKS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; WORKING-UP

The invention describes a transparent film composed of polymer with high weathering stability and increased intrinsic stability, wherein the film comprises a) poly(meth)acrylate and polyvinylidene fluoride in a ratio of from 1 : 0.01 to 1 : 1 (w/w) and b) a mixture of UV stabilizers and UV absorbers. In order to achieve outstanding weathering stability and increased intrinsic stability of the surface protection films, preference is given to using PMMA matrix polymers with high molecular weights and a particular selected coacrylate content.