Process for bonding several layers of plastic film
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United States of America Patent
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Apr 4, 2006
Grant Date -
Sep 18, 2003
app pub date -
Mar 14, 2003
filing date -
Mar 15, 2002
priority date (Note) -
Expired
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Abstract
A process for bonding several layers of plastic film, particularly plastic bags, into a block, where it is supposed to be possible to remove the plastic films or plastic bags form the block individually; the plastic films or plastic bags are bonded together in an edge strip by means of ultrasonic welding.
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