- 专利标题: Biaxially oriented, UV-stabilized, single- or multilayer polyester film with a combination of silicon dioxide particles as light-scattering particles and UV stabilizer, process for producing same and use thereof in greenhouse blinds
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申请号: US15404866申请日: 2017-01-12
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公开(公告)号: US11040524B2公开(公告)日: 2021-06-22
- 发明人: Claudia Lohre , Holger Kliesch , Andreas Bork , Yavuz Ünker
- 申请人: Mitsubishi Polyester Film GmbH
- 申请人地址: DE Weisbaden
- 专利权人: Mitsubishi Polyester Film GmbH
- 当前专利权人: Mitsubishi Polyester Film GmbH
- 当前专利权人地址: DE Weisbaden
- 代理机构: ProPat, LLC
- 代理商 Cathy R. Moore
- 优先权: DE102016200875.7 20160122
- 主分类号: B32B27/36
- IPC分类号: B32B27/36 ; B29C48/08 ; B29C48/00 ; B29C48/21 ; B29C48/88 ; B32B27/18 ; B32B27/08 ; B32B27/20 ; B32B7/02 ; A01G9/14 ; A01G9/22 ; A01G9/24 ; B29C55/12 ; G02B5/02 ; B29K67/00 ; B29K105/00 ; B29K105/16 ; B29K509/02 ; B29L7/00 ; B29L9/00 ; B29L31/00
摘要:
The invention relates to biaxially oriented, UV-stabilized polyester films incorporating silicon dioxide particles as light-scattering particles and a UV stabilizer; a process for producing the same and to use thereof in greenhouse blinds. The invention particularly relates to single- or multilayer polyester film with transparency from 70 to 92 %, where: the film includes at least 1.0% by weight to at most 2.5% by weight of SiO2, with the d50 value of these SiO2 particles ranging from 3 to 9 μm, the SV value of the film is at least 700, the scattering factor SF of the film is at least 2 and not more than 8, the haze of the film is from 60 to 95%, and the clarity of the film is from 15 to 40%; and all of the external layers comprise at least 0.3 % by weight of an organic UV stabilizer.