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2. 发明申请

WO1995018848A1 LIQUID CRYSTAL COMPOUNDS, MIXTURES AND DEVICES 审中-公开
标题翻译：液晶化合物，混合物和装置
公开(公告)号：WO1995018848A1
公开(公告)日：1995-07-13
申请号：PCT/GB1995000018
申请日：1995-01-06
申请人： THE SECRETARY OF STATE FOR DEFENCE , SLANEY, Andrew, John , McDONNELL, Damien, Gerard , SAMRA, Amarjit, Kaur , STANLEY, Maurice , GOODBY, John, William , HIRD, Michael , CROSS, Simon, James , DONG, Chunchuan , MINTER, Victoria
发明人： THE SECRETARY OF STATE FOR DEFENCE
IPC分类号： C09K19/02
CPC分类号： C07C205/37 , C07C205/43 , C09K19/0233 , C09K19/126 , C09K19/2007 , C09K19/3003 , C09K19/3068
摘要： The invention describes liquid crystal compounds of formula (I) which are suitable for use in liquid crystal devices including those devices which exploit the electroclinic effect, wherein X may be CN, NO2, CF3, CF2H, CFH2, halogen, hydrogen, alkyl or alkoxy; X2 may be CN, NO2, CF3, CF2H, CFH2, halogen, hydrogen, alkyl or alkoxy; X3 may be CN, NO2, CF3, CF2H, CFH2, halogen, alkyl, alkoxy or hydrogen; X4 may be CN, NO2, CF3, CF2H, CFH2, halogen, alkyl, alkoxy or hydrogen; provided that at least one of X or X2 is CF3, CF2H, CFH2, CN, NO2 or halogen; A and B are independently phenyl, mono-fluorinated phenyl, di-fluorinated phenyl or cyclohexyl; Y may be single bond, COO, OOC, C = C; q may be 0 or 1; R1 may be an end group of formula (II) wherein Z may be a single bond, O, CO2, (CH2)n or (CH2)nO where n may be 1 or 2; J and M may be independently H, C1-4 alkyl; W may be C1-C12 straight or branched alkyl chain; R2 may contain 1-14 carbon atoms wherein one or more non-adjacent CH2 groups may be replaced by CO2 or O. X or X2 may give rise to steric hindrance with the nearest terminal group. The materials of the current invention may be mixed together and/or with other liquid crystal compounds. Suitable devices which the materials of the present invention may be incorporated in include beam steerers, piezoelectric actuators or sensors and pyroelectric sensors and displays in general. The materials of the present invention may also be useful as dopants in ferroelectrics and as second order non-linear optic materials for second harmonic conversion of light.
摘要翻译：本发明描述了适用于液晶装置的液晶化合物，其中包括那些利用电击效应的装置，其中X可以是CN，NO2，CF3，CF2H，CFH2，卤素，氢，烷基或烷氧基 ; X 2可以是CN，NO 2，CF 3，CF 2 H，CFH 2，卤素，氢，烷基或烷氧基; X3可以是CN，NO2，CF3，CF2H，CFH2，卤素，烷基，烷氧基或氢; X 4可以是CN，NO 2，CF 3，CF 2 H，CFH 2，卤素，烷基，烷氧基或氢; 条件是X或X 2中的至少一个为CF 3，CF 2 H，CFH 2，CN，NO 2或卤素; A和B独立地是苯基，单氟化苯基，二氟化苯基或环己基; Y可以是单键，COO，OOC，C≡C; q可以是0或1; R 1可以是式（II）的端基，其中Z可以是单键O，CO 2，（CH 2）n或（CH 2）n O，其中n可以是1或2; J和M可以独立地是H，C 1-4烷基; W可以是C 1 -C 12直链或支链烷基链; R2可以含有1-14个碳原子，其中一个或多个不相邻的CH 2基团可以被CO 2或O取代。X或X 2可以引起与最近的末端基团的空间位阻。本发明的材料可以混合在一起和/或与其它液晶化合物混合。可并入本发明的材料的合适的装置包括光束转向器，压电致动器或传感器以及热电传感器和显示器。本发明的材料也可用作铁电体中的掺杂剂，并且可用作光二次谐波转换的二阶非线性光学材料。

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