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Title:
LIQUID CRYSTAL MATERIAL WITH LOW VALUE OF OPTICAL ANISOTROPY AND METHOD OF MAKING IT
Document Type and Number:
WIPO Patent Application WO/1981/000853
Kind Code:
A1
Abstract:
A liquid crystal material comprises at least one substance "A" ensuring its positive dielectric anisotropy and a substance "B" ensuring a lowered value of its optical anisotropy, the weight content of substance "A" being of 4.9 to 30 per cent and of substance "B" - of 70 to 95.1 per cent. The dielectric anisotropy of the said material ranges from + 1 to + 10 whereas its optical anisotropy from 0.04 to 0.1.

Inventors:
Barnik I V V, Ivashchenko Kovshev Agafonova Grebenkin Shoshin Blinov Titov Karamysheva Shtykov M. A. E. M. L. L. N.
Application Number:
PCT/SU1979/000095
Publication Date:
April 02, 1981
Filing Date:
September 28, 1979
Export Citation:
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Assignee:
Barnik I V V, Ivashchenko Kovshev Agafonova Grebenkin Shoshin Blinov Titov Karamysheva Shtykov M. A. E. M. L. L. N.
International Classes:
G09F9/00; C07C61/08; C07C67/00; C07C253/00; C07C255/51; C07C255/53; C09K19/00; C09K19/02; C09K19/42; C09K19/46; G02F1/13; (IPC1-7): C09K3/34; C07C121/72; C07C121/52; C07C61/08
Foreign References:
GB1407777A1975-09-24
JPS5120993B21976-06-29
GB1437878A1976-06-03
GB1406363A1975-09-17
DE2625217B21978-04-06
US4138359A1979-02-06
US4029594A1977-06-14
Other References:
D. Demus: "Flussige Kristalle in Tabellen", published in 1974, publishing house "VEB Deutscher Verlag fur Grendstoffindustrie", Leipzig, page 34
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