Weather-resistant film for the yellow coloration of retro-reflective moulded bodies

The present invention relates to a foil encompassing at least one PMMA layer coloured with a yellow anthraquinone dye, where the chromaticity coordinates (x;y) in the CIE 1931 Standard Colorimetric System of the PMMA layer are within the range of 0.4 x 0.54 and 0.44 y 0.54, where the concentration o...

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Bibliographic Details
Main Author NEUHAEUSER ACHIM,ENDERS MICHAEL,DICKHAUT-BAYER GUENTHER
Format Patent
LanguageEnglish
Published 14.03.2007
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICS
SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR
SHAPING OR JOINING OF PLASTICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING OF PLASTICS
WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
WORKING-UP
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Summary:The present invention relates to a foil encompassing at least one PMMA layer coloured with a yellow anthraquinone dye, where the chromaticity coordinates (x;y) in the CIE 1931 Standard Colorimetric System of the PMMA layer are within the range of 0.4 x 0.54 and 0.44 y 0.54, where the concentration of the yellow dye of the PMMA layer is at least 3% by weight, based on the total weight of the PMMA layer.
Bibliography:Application Number: CN200580007360