Compositions – Liquid crystal compositions – Containing nonsteryl liquid crystalline compound of...
Patent
1987-12-22
1990-04-10
Terapane, John F.
Compositions
Liquid crystal compositions
Containing nonsteryl liquid crystalline compound of...
25229901, 350350R, 350350S, 548533, 544316, 544318, 544298, 544335, C09K 1952, C09K 1934, G02F 113
Patent
active
049158686
ABSTRACT:
Optically active esters of 1-acylproline of the general formula ##STR1## in which at least one of the radicals R.sup.1 and R.sup.2 is a mesogenic radical, are suitable as dopes in ferroelectric liquid-crystal mixtures. Proline derivatives in which only the R.sup.1 radical is mesogenic are preferred.
REFERENCES:
patent: 4349452 (1982-09-01), Osman et al.
patent: 4764619 (1988-08-01), Gunjima et al.
Gunther Dieter
Ohlendorf Dieter
Wingen Rainer
Hoechst Aktiengesellschaft
Terapane John F.
Thomas J. E.
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