Invention Grant
- Patent Title: Multi-layer film permeable to UV radiation
- Patent Title (中): 多层膜可透紫外线辐射
-
Application No.: US13690076Application Date: 2012-11-30
-
Publication No.: US08794269B2Publication Date: 2014-08-05
- Inventor: Henrik Hummel
- Applicant: Huhtamaki Films Germany GmbH & Co. KG.
- Applicant Address: DE Forchheim
- Assignee: Huhtamaki Films Germany GmbH & Co. KG
- Current Assignee: Huhtamaki Films Germany GmbH & Co. KG
- Current Assignee Address: DE Forchheim
- Agency: Norris McLaughlin & Marcus PA
- Priority: DE102010023764 20100615
- Main IPC: F16L55/16
- IPC: F16L55/16

Abstract:
A multilayer film that is impermeable to liquids and is to some extent permeable to UV radiation, optionally in the form of a tubular film, having a layer sequence of a layer (a) comprising at least one thermoplastic olefin homo- or copolymer, as one of the external layers, an adhesive-promoter layer (b), an internal layer (c) comprising at least one homo- and/or copolyamide, an adhesive-promoter layer (d), and a layer (e) comprising at least one homo- and/or copolyamide, as one of the external layers, wherein the VICAT softening point of the thermoplastic olefin homo- or copolymer of the layer (a) is at least 100° C., and the use of said multilayer film as internally situated tube of an insertion tube for the renovation of subterranean pipes, an insertion tube of this type, and a pipe-renovation system suitable for the renovation of subterranean pipes.
Public/Granted literature
- US20130126029A1 MULTI-LAYER FILM PERMEABLE TO UV RADIATION Public/Granted day:2013-05-23
Information query