Multi-layer, deep-drawable and sealable film
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United States of America Patent
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Issued Date -
Feb 26, 2004
app pub date -
Jun 13, 2003
filing date -
Jun 15, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multi-layer, deep-drawable and sealable film, produced by means of blown film extrusion, having a layer thickness of less than 150 .mu.m, has a layer structure A1/B/A2/C/D, wherein A1 is a first polyamide layer, B is an equalization layer, A2 is a second polyamide layer, C is a bonding agent layer, and D is a sealing layer made from a polyolefin and polyolefin copolymer. The equalization layer between the polyamide layers possesses a layer thickness that amounts to more than 25% of the film thickness and is greater than the sum of the two polyamide layers.
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