Weathering-resistant foil for yellow colouring of...

Details Weathering-resistant foil for yellow colouring of... Weathering-resistant foil for yellow colouring of...

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) G02B 5/124 (2006.01) G02B 5/22 (2006.01)

Patent

CA 2558179

The invention relates to a film, comprising at least one PMMA layer that has been coloured using a yellow anthraquinone dye. According to the invention, the PMMA layer comprises colour co-ordinates (x;y) that lie within the ranges 0.4 = x = 0.54 and 0.44 = y = 0.54, as defined according to the CIE 1931 Standard Colorimetric System. The concentration of the yellow dye of the PMMA layer is at least 3 wt. %, in relation to the total weight of the PMMA layer.

L'invention concerne une feuille comportant au moins une couche PMMA teintée en jaune à l'anthraquinone et présentant les coordonnées chromatiques (x;y) du système de colorimétrie standard CIE 1931 dans la zone de 0,4 = x = 0,54 et 0,44 = y = 0,54. L'invention est caractérisée en ce que la concentration du colorant jaune de la couche PMMA représente au moins 3 % en poids, relativement au poids total de la couche PMMA.

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