ACRYLIC FOILS WITH IMPROVED UV-PROTECTION PROPERTIES

ACRYLIC FOILS WITH IMPROVED UV-PROTECTION PROPERTIES

The present invention relates to a transparent weathering resistant foil for protection of various substrates against solar radiation.In one embodiment of the invention the foil comprises at least two layers A and B, wherein the spectral transmittance of the layer A at any wavelength λAis not more t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ENDERS, Michael, SEYOUM, Ghirmay, STRUWE, Kim, GROOTHUES, Herbert, GUÉNANTEN, Claude
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:The present invention relates to a transparent weathering resistant foil for protection of various substrates against solar radiation.In one embodiment of the invention the foil comprises at least two layers A and B, wherein the spectral transmittance of the layer A at any wavelength λAis not more than 10%; wherein 270 nm ≤ λA≤ 360 nm; andthe spectral transmittance of the layer B at any wavelength λBis not more than 10%; wherein 270 nm ≤ λB≤ 370 nm.In a further embodiment of the invention the foil comprises at least two layers A and B, wherein the spectral transmittance of the layer A at any wavelength λAis not more than 10%; wherein 270 nm ≤ λA≤ 310 nm; andthe spectral transmittance of the layer B at any wavelength λBis not more than 10%; wherein 270 nm ≤ λB≤ 370 nm.