ANISOTROPIC COMPOUND AND LIQUID CRYSTAL MIXTURE

Japanese Patent JPS6084233

A

New anisotropic compounds with a cross-polarizing substituent have the formula (1) (1) The increase in epsilon ORTHOGONAL is achieved by the polarizing group X, preferably the cyano group or a halogen atom, which is not laterally on the ring, as with the known compounds, but is on the bridge, that is to say is part of the main bridge bonding rings A and B to one another. Ring A has the formula (1a) or (1b) given herein and is always cycloaliphatic, while ring B can be identical to ring A or is an aromatic ring of the formula (1c) or (1d) herein. R1 and R2 are identical or different end groups of the formula (1e) herein. The radical X on the bridge causes less widening of the molecule than a radical X on a ring, which provides comparatively higher clear points and moreover enables aromatic rings to be omitted from the anisotropic compounds.

TOUON FUUIN BAA
MAJIEDO AA OSUMAN

JP18825584A

May 13, 1985

September 10, 1984

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MERCK PATENT GMBH

C07C17/00; C07C17/16; C07C17/26; C07C19/01; C07C19/07; C07C22/00; C07C22/04; C07C41/00; C07C43/192; C07C43/225; C07C67/00; C07C69/74; C07C69/76; C07C253/00; C07C69/02; C07C255/31; C07C255/33; C07D237/08; C07D237/14; C09K19/30; C09K19/32; C09K19/34; C09K19/42; G02F1/13; (IPC1-7): C07C19/02; C07C21/24; C07C43/192; C07C43/225; C07C69/02; C07C69/74; C07C69/76; C07C121/46; C07C121/66; C09K19/30; C09K19/32; C09K19/34; C09K19/42; G02F1/13

Takao Minami

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