ANISOTROPIC COMPOUNDS AND LIQUID CRYSTAL COMPOSITIONS
摘要
Anisotropic compounds having negative DC anisotropy and improved photochemical stability have the formula (1) given in patent claim 1; none of the benzene rings present in the molecule (1) is bonded directly to two oxygen atoms, as a result of which quinoidal bonding states which reduce the photochemical stability of anisotropic compounds in the case of benzene rings with two lateral nitrile groups are excluded.
申请公布号
DE3362830(D1)
申请公布日期
1986.05.15
申请号
DE19833362830
申请日期
1983.01.10
申请人
MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
发明人
HUYNH-BA, TUONG, DR.;KELLY, STEPHEN MALCOLM, DR.;OSMAN, MAGED A., DR.