Polyester raw material, and film produced therefrom

Details Polyester raw material, and film produced therefrom Polyester raw material, and film produced therefrom

C - Chemistry, Metallurgy

08

J

C08J 5/18 (2006.01) B29D 7/01 (2006.01) B32B 5/16 (2006.01) B32B 27/36 (2006.01) C08L 67/00 (2006.01) C08L 67/02 (2006.01) G11B 5/733 (2006.01) H01G 4/18 (2006.01) H01G 4/20 (2006.01) B29C 55/00 (2006.01) C08L 25/06 (2006.01) C08L 33/04 (2006.01) C08L 63/00 (2006.01) C08L 83/04 (2006.01)

Patent

CA 2121551

Abstract of the Disclosure The invention describes a novel polyester raw material and the production and use of an oriented, single- or multilayer film having an overall thickness of ? 4 µm and a roughness on at least one film surface of Ra < 30 nm, where the surface gas-flow resistance on at least one film surface is t ? a-db [sec], where a = 0 to 10,000 [sec/µm], b = 3.0 to 0, and d (overall film thickness) ? 4 µm. The film contains first (I) and second (II) particles. The first particles are monodisperse and have an aspect ratio of 1.0 - 1.2.

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