Title:
LIQUID CRYSTAL COMPOUNDS,MIXTURES AND DEVICES
Document Type and Number:
WIPO Patent Application WO1987005291
Kind Code:
A3
Abstract:
Novel compounds suitable for inclusion in a ferroelectric smectic liquid crystal mixture, having formula (I), where the rings are independently phenyl, cyclohexyl or pyrimidyl, n is 0 or 1, m is 1, 2 or 3 (m + n is 1, 2 or 3), A, B, D, E are independently H or F, Z is a linking group or a single bond, R1 is alkyl or alkoxy, R2 is optically alkyl (n=0) or -COOR3 CH(CH3) COOR4 where R3 is optically active alkyl and R4 is n-alkyl (n=1), and a is 1 or 2. Ferroelectric smectic mixtures containing these compounds preferably in a non-optically active or racemic form aree described. Preferably each of the rings is phenyl.
Inventors:
GRAY GEORGE WILLIAM (GB)
LACEY DAVID (GB)
TOYNE KENNETH JOHNSON (GB)
SCROWSTON RICHARD MICHAEL (GB)
HOLMES DAVID (GB)
BRADSHAW MADELINE JOAN (GB)
SAMRA ANERJIT (GB)
HONG JUN SHANGHAI (CN)
LACEY DAVID (GB)
TOYNE KENNETH JOHNSON (GB)
SCROWSTON RICHARD MICHAEL (GB)
HOLMES DAVID (GB)
BRADSHAW MADELINE JOAN (GB)
SAMRA ANERJIT (GB)
HONG JUN SHANGHAI (CN)
Application Number:
PCT/GB1987/000132
Publication Date:
February 11, 1988
Filing Date:
February 20, 1987
Export Citation:
Assignee:
SECR DEFENCE BRIT (GB)
SHANGHAI INST ORGANIC CHEM (CN)
SHANGHAI INST ORGANIC CHEM (CN)
International Classes:
C07C1/32; C07C43/225; C07C67/00; C07C69/612; C07C69/65; C07C69/734; C07C69/86; C07C69/90; C07C69/92; C07C69/94; C07C241/00; C07C251/24; C07D239/26; C07D239/28; C07D239/34; C07D239/42; C09K19/12; C09K19/20; C09K19/22; C09K19/24; C09K19/26; C09K19/30; C09K19/34; C09K19/46; G02F1/13; (IPC1-7): C07C69/90; C07C69/734; C09K19/20; C09K19/12
Foreign References:
| EP0104327A2 | 1984-04-04 |
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