Polyolefin/copolyamide RF active adhesive film
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United States of America Patent
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Sep 17, 2002
Grant Date -
N/A
app pub date -
Mar 12, 2001
filing date -
May 12, 2000
priority date (Note) -
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Abstract
Flexible, halogen-free, high frequency-sealable films fabricated from a blend of a copolyamide and a polyolefin having a carboxylic acid or carboxylic acid anhydride functionality have sufficient copolyamide to yield a DLF of at least 0.05 at a frequency of 27 megahertz and serve as effective substitutes for flexible polyvinyl chloride films. The films may be mono-layer films or multi-layer films, especially where the high frequency-sealable films serve as outer or skin layers in multi-layer films. Products made from such monolayer and multi-layer films find utility in a number of applications, especially for medical device applications.
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