Invention Grant
- Patent Title: UV barrier film
- Patent Title (中): 紫外线屏障膜
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Application No.: US12670356Application Date: 2008-07-08
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Publication No.: US08088848B2Publication Date: 2012-01-03
- Inventor: Celine Denecker
- Applicant: Celine Denecker
- Applicant Address: GB
- Assignee: Innovia Films Limited
- Current Assignee: Innovia Films Limited
- Current Assignee Address: GB
- Agency: Knobbe Martens Olson & Bear, LLP
- Priority: GB0714418.1 20070724
- International Application: PCT/GB2008/050596 WO 20080708
- International Announcement: WO2009/013529 WO 20090129
- Main IPC: C08K5/34
- IPC: C08K5/34 ; C08K5/16

Abstract:
Transparent polypropylene film comprising at least two UV-absorbing additives, a first additive being a non-aggregated inorganic material present in the film composition in an amount of from 0.1 to 5.0% by weight, and a second additive comprising an organic material selected from triazines, hindered amines, oxanilides, cyanoacrylates, benzotriazoles and/or benzophenones and present in the film in an amount of less than 2.0% by weight and wherein when both benzotriazole(s) and benzophenone(s) are present in the film, the ratio of benzotriazole(s) to benzophenone(s) is above 0.5.
Public/Granted literature
- US20100247898A1 UV Barrier Film Public/Granted day:2010-09-30
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