Multilayer Film
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United States of America Patent
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N/A
Issued Date -
Jun 19, 2014
app pub date -
Dec 10, 2013
filing date -
Dec 10, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention refers to a multilayered film, especially in form of a tubular film for use as preliner in trenchless sewage pipe renovation that uses the pipe lining process. The multilayered film according to the invention is characterized by at least one layer (a), which contains at least a homo- or copolyamide with a proportional weight expressed in percent of more than 25% by weight, preferably as external layer, as well as by at least one layer (b) containing at least one thermoplastic, if need be modified, olefin homo- or copolymer and/or by at least one layer (c) containing at least one thermoplastic elastomer (TPE). Various uses of the multilayered film according to the invention are suggested as well.
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