摘要:
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.
摘要翻译:本发明涉及包含至少一个用黄色蒽醌染料着色的PMMA层的箔,其中PMMA层的CIE 1931标准比色系统中的色度坐标(x; y)在0.4 <= x < = 0.54和0.44 <= y <= 0.54,其中基于PMMA层的总重量,PMMA层的黄色染料的浓度为至少3重量%。
摘要:
The invention relates to a film composite and the use thereof as a mirror film in solar reflectors in view of the sustainable guarantee of the required reflection of solar radiation (total solar reflection). In particular, the invention relates to the use of cover films on the basis of polymethyl methacrylate (PMMA) in the film composite, having an especially high UV stability, and a high weathering stability. The invention further relates to a UV and weather protection package for said solar mirror film, as utilized in solar reflectors, for improving the optical life span, weathering stability, and for avoiding delamination. The invention further relates to a surface finish with regard to scratch resistance, anti-soil and chemical stability of the solar mirror film.