THERMALLY STABLE ALIGNMENT MATERIALS
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United States of America Patent
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Sep 6, 2017
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May 2, 2007
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Abstract
A thermally stable diamine compound of formula (I′) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound. Also, a process of preparing orientation layers for liquid crystals including preparing orientation layers for liquid crystals from thermally stable alignment materials comprising diamine compounds of formula (I′).
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