Method of forming a liquid crystal polymer layer without support substrate
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United States of America Patent
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Jan 20, 2004
Grant Date -
Nov 14, 2002
app pub date -
Apr 3, 2002
filing date -
Apr 6, 2001
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Expired
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Abstract
A method of forming a liquid crystal polymer layer includes: coating a substrate with a release layer; coating the release layer with an alignment layer capable of aligning a liquid crystal polymer layer; coating the alignment layer with a layer of a liquid crystal polymer material, thereby forming a liquid crystal polymer layer in which the molecules have a predetermined orientation; solidifying the layer of liquid crystal polymer; and dissolving the release layer in a liquid which does not harm the solidified liquid crystal polymer layer to form a self supporting film. The release layer and alignment layer can be combined into a single layer, such as for example a layer of polyvinyl alcohol which may be dissolved in water. Thicker or multi-layer films can be fabricated by using the first solidified layer as an alignment layer for a subsequently deposited liquid crystal polymer layer.
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