Diamantane compounds, liquid crystalline compounds, and liquid crystalline compositions
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United States of America Patent
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Dec 24, 2013
Grant Date -
Jan 20, 2011
app pub date -
Mar 11, 2008
filing date -
Mar 11, 2008
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Abstract
A liquid crystalline compound has excellent liquid crystal properties, particularly high phase transition temperature. Diamantane compounds are represented by the general formula (I): (I) wherein A and B are each a six-membered, saturated or unsaturated, carbo- or hetero-cycle, and these cycles may have substituents, which substituents may be united to form a ring; and R1 and R2 are each a hydrocarbon group having 1 to 18 carbon atoms, and part of the carbon atoms of the hydrocarbon group may be replaced by heteroatoms or heteroatom-containing groups, while part of the hydrogen atoms thereof may be replaced by halogen atoms or heteroatom-containing groups.
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