发明授权
- 专利标题： Weather-resistant film for the yellow coloration of retro-reflective moulded bodies
- 专利标题（中）： 防反射成型体的黄色着色耐候性膜
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申请号： US10593258申请日： 2005-12-08
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公开(公告)号： US07754317B2公开(公告)日： 2010-07-13
- 发明人: Achim Neuhaeuser , Michael Enders , Guenther Dickhaut-Bayer
- 申请人： Achim Neuhaeuser , Michael Enders , Guenther Dickhaut-Bayer
- 申请人地址： DE Darmstadt
- 专利权人： Evonik Roehm GmbH
- 当前专利权人： Evonik Roehm GmbH
- 当前专利权人地址： DE Darmstadt
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： DE102005002072 20050114
- 国际申请： PCT/EP2005/013132 WO 20051208
- 国际公布： WO2006/074766 WO 20060720
- 主分类号： B32B27/32
- IPC分类号： B32B27/32 ; B32B27/00 ; B29C47/00
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.