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发明申请
US20110192553A1 Multilayer polyester film with high optical density with a total thickness of max. 60 µm with two white outer layers and a carbon-black containing base layer 有权
多层聚酯薄膜，光学密度高，总厚度最大。 60μm具有两个白色外层和含炭黑的基层

Multilayer polyester film with high optical density with a total thickness of max. 60 µm with two white outer layers and a carbon-black containing base layer
摘要：
The invention relates to an at least three-layer, biaxially oriented polyester film with two white outer layers and carbon-black-filled base layer, where the thickness of the outer layers is from 4 to 15 μm, the thickness of the base layer is ≧the total of the thicknesses of the outer layers, the white outer layers comprise at least 15% by weight of TiO2, the base layer comprises at least 4% by weight of TiO2, the carbon-black-containing base layer comprises from 1 to 8% by weight of carbon black, and the SV value of the film is at least 600, where all % by weight data are based on the weight of the respective layer, and also to a process for the production of this type of film and to the use of the film in particular in blinds, including roller blinds, Venetian blinds, or projection screens, or in displays.
摘要（中）：

本发明涉及具有两个白色外层和填充炭黑的基层的至少三层双轴取向的聚酯膜，其中外层的厚度为4至15μm，基层的厚度为 ≧外层的厚度总和，白色外层包含至少15重量％的TiO 2，基层包含至少4重量％的TiO 2，含炭黑的基层包含1至 8重量％的炭黑，并且膜的SV值为至少600，其中所有重量％的数据都是基于各层的重量，以及制造这种类型的膜的方法 特别是在百叶窗，包括百叶帘，百叶窗或投影屏幕或显示器中使用该电影。

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