Solution of aromatic polyamide for manufacturing display element, optical element, illumination element or sensor element
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United States of America Patent
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Jan 23, 2018
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N/A
app pub date -
Oct 1, 2014
filing date -
Oct 4, 2013
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Abstract
The present disclosure, in one aspect, relates to a polyamide solution including an aromatic polyamide and a solvent, wherein the aromatic polyamide includes at least two types of constitutional units, and a change rate of coefficient of thermal expansion (CTE) of a cast film produced by casting the polyamide solution on a glass plate and CTE of the same cast film after being subjected to a heat treatment at temperature of 200° C. to 450° C. (=CTE after heat treatment/CTE before heat treatment) is 1.3 or less.
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