Glass-forming liquid crystalline compositions and optical devices formed therefrom
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United States of America Patent
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May 6, 2003
Grant Date -
Nov 1, 2001
app pub date -
Dec 19, 2000
filing date -
Dec 22, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A glass-forming liquid crystal composition comprises a compound having a molecular weight in the range of about 1000 to 5000 grams per mole and having the formula (NEM).sub.x --CYC--(CHI).sub.y wherein CYC is a substituted cycloaliphatic core moiety containing about 24 to about 60 carbon atoms or a substituted aromatic core moiety containing about 6 to about 36 carbon atoms, NEM is a nematogenic pendant moiety, CHI is a chiral pendant moiety, x is 3 to 9, and y is 0 to 4. An optical device is formed from the liquid crystal composition.
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