Manufacture of multilayer polymer films
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United States of America Patent
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Jun 20, 2000
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N/A
app pub date -
Aug 5, 1997
filing date -
Sep 11, 1996
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Abstract
A method for making multilayer polymer films with involves the use of preferably embossed rollers which oscillate oppositely with respect to each along their respective rotational axis. Multilayer film is made by passing two or more molten thermoplastic films through the nip of these rollers, thereby laminating the individual films together. The method is particularly useful for improving the adhesion between film layers, and/or when at least one of the layer is a liquid crystalline polymer. Such films are useful in packaging, multilayer containers and for circuit boards.
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