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US 4,638,073 AGranted
Synthesis of new liquid crystal materials possessing phenylbenzoate or biphenyl core units and (2,3)-epoxyalkyloxiranemethanol chiral tails
OwnerDavid M. Walba, Rohini Vohrainventors
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Abstract
Ferroelectric (chiral) smectic liquid crystal compounds having an achiral core and chiral tail units derived from (2,3)-epoxyalkyloxiranemethanols possess a high ferroelectric polarization density. These newly made compounds exhibit high speed, multistate electro-optic switching properties which make then ideally suited to certain electro-optic display device applications.
Claims25
A compound of formula:
- ##STR4## wherein R is an alkyl of one to seven carbon atoms, and R' is an alkyl of five to twelve carbon atoms.
A compound of the formula:
- ##STR5## wherein R is an alkyl of one to seven carbon atoms, and R' is an alkyl of five to twelve carbon atoms.
Dependencies are inferred from the claim text.