Fluorinated oligophenyls and their use in liquid crystal materials
    2.
    发明授权
    Fluorinated oligophenyls and their use in liquid crystal materials 失效
    氟化低聚物及其在液晶材料中的应用

    公开(公告)号:US5273680A

    公开(公告)日:1993-12-28

    申请号:US846750

    申请日:1992-03-09

    摘要: This invention relates to fluorinated oligophenyls of formula (I), in which a is 0 or 1 and in which the terminal substituents R.sup.1, R.sup.2 and R.sup.3 are each independently an alkyl or alkenyl residue each with up to 15 C atoms, optionally substituted by CN or by at least one halogen atom, and wherein one or more non adjacent CH.sub.2 groups of these residues may be replaced by --O--, --S--, --CO--, --O--CO--, --CO--O--, --O--CO--O-- or --C.tbd.C--, one of the residues R.sup.1 and R.sup.2 may also denote a group of formula (II), any one of the following pairs of lateral substituents are both fluorine: (A, B), (C, D), (D, E), (C, E), (B, C), (D, J), (D, K), (A, C), (C, J), (C', D'), (D', E), (D', A), (C', E), (C', A), (D', J'), (D', K'), (C', J'), (B, G), (A, G), all of the other lateral substituents being hydrogen or fluorine, and to their use as components of liquid crystalline compositions.

    摘要翻译: PCT No.PCT / EP88 / 00724 Sec。 371日期:1989年3月8日 102(e)日期1989年3月8日PCT提交1988年8月13日PCT公布。 出版物WO89 / 02425 本发明涉及式(I)的氟化低聚苯基,其中a是0或1,并且其中末端取代基R 1,R 2和R 3各自独立地为烷基或链烯基,每个具有至多15个 C原子,任选地被CN或至少一个卤素原子取代,并且其中这些残基的一个或多个非相邻的CH 2基团可以被-O - , - S - , - CO-,-O-CO-, - CO-O-,-O-CO-O-或-C 3BOND C-,残基R1和R2之一也可以表示式(II)的基团,以下对侧取代基中的任一个均为氟: (A,B),(C,D),(D,E),(C,E),(B,C),(D,J),(D,K),(A,C) ,(C',E),(C',A),(D',J'),(D',E) ',K'),(C',J'),(B,G),(A,G),所有其它横向取代基是氢或氟,并且作为液晶组合物的组分。

    2,3-difluorobiphenyls
    3.
    发明授权
    2,3-difluorobiphenyls 失效
    2,3-DIFLUOROBIPHENYLS

    公开(公告)号:US5204019A

    公开(公告)日:1993-04-20

    申请号:US362470

    申请日:1989-05-15

    摘要: 4-Q.sup.1 -4'-Q.sup.2 -2,3-Difluorobiphenyls whereinQ.sup.1 and Q.sup.2 independently of one another are each R or R-A.sup.1 -A.sup.2 -Z in whichR (sic) alkyl having 1-15 C atoms or alkenyl having 3-15 C atoms each of which is unsubstituted or monosubstituted by cyano or at least monosubstituted by fluorine or chlorine, and in which in each case one or two non-adjacent CH.sub.2 groups can also be replaced by --O--, --CO--, --O--CO, --CO--O-- or --O--COO--, (sic) --COO--, --O--CO--, --CH.sub.2 O, --O--CH.sub.2 --, --CH.sub.2 CH.sub.2 -- or a single bond, andA.sup.1 and A.sup.2 independently of one another . . (sic) each 1,4-phenylene which is unsubstituted or substituted by one or two fluorine atoms, and in which one or two CH groups can also be replaced by N, or trans-1,4-cyclohexylene wherein one or two non-adjacent CH.sub.2 groups can also be replaced by --O--, and one of the two groups A.sup.1 and A.sup.2 can also be a single bond,subject to the proviso that Z is --CO--O, --O--CO--, --CH.sub.2 O--, --OCH.sub.2 -- or --CH.sub.2 CH.sub.2 --, if one of the groups Q.sup.1 or Q.sup.2 is alkyl or alkoxy and the other group Q.sup.1 or Q.sup.2 is R-A.sup.1 -A.sup.2 -Z wherein one of the two groups A.sup.1 and A.sup.2 is a single bond, are suitable for use as components of liquid-crystal media.

    摘要翻译: PCT No.PCT / EP89 / 00180 Sec。 371日期:1989年5月15日 102(e)日期1989年5月15日PCT提交1989年2月27日PCT公布。 出版物WO89 / 08687 日本9月21日1989.4-Q1-4'-Q2-2,3-二氟联苯,其中Q1和Q2彼此独立地为R或R-A1-A2-Z,其中R(sic)烷基具有1-15个碳原子 具有3-15个碳原子的原子或烯基,其各自为未取代的或被氰基单取代或至少被氟或氯单取代,并且其中在每种情况下一个或两个不相邻的CH 2基团也可以被-O-, -CO - , - O-CO,-CO-O-或-O-COO-,(sic)-COO-,-O-CO-,-CH2O,-O-CH2-,-CH2CH2-或单键 ,A1和A2彼此独立。 。 (sic)未取代或被一个或两个氟原子取代的每个1,4-亚苯基,其中一个或两个CH基团也可以被N或反式-1,4-亚环己基代替,其中一个或两个非 - 相邻的CH2基团也可以被-O-取代,并且两个基团A1和A2之一也可以是单键,条件是Z是-CO-O,-O-CO-,-CH2O-, -OCH 2 - 或-CH 2 CH 2 - ,如果基团Q1或Q2中的一个为烷基或烷氧基,另一个基团Q1或Q2为两个基团A1和A2之一为单键的R-A1-A2-Z, 适合用作液晶介质的组分。

    Fluorine-containing aromatic compounds
    10.
    发明授权
    Fluorine-containing aromatic compounds 失效
    含氟芳香族化合物

    公开(公告)号:US5151213A

    公开(公告)日:1992-09-29

    申请号:US553808

    申请日:1990-07-18

    摘要: Fluorine-containing aromatic compounds of the formula I ##STR1## in which R.sup.1 is alkyl having up to 12 C atoms or alkenyl having 2 to 12 C atoms,Q.sup.1 and Q.sup.2 are each, independently of one another, --O-- or a single bond, and one of the radicals Q.sup.1 and Q.sup.2 is alternatively trans-1,4-cyclohexylene,T.sup.1 is ##STR2## T.sup.2 is ##STR3## R.sup.2 is F, Cl, --CF.sub.3, --OCF.sub.3, --OCHF.sub.2 or one of the meanings of R.sup.1, andL.sup.1, L.sup.2,L.sup.3 and L.sup.4 are each H or F,are suitable as components of liquid-crystalline phases for IR shutters.

    摘要翻译: 其中R1是具有至多12个C原子的烷基或具有2-12个C原子的烯基的式I的芳族化合物Q1和Q2各自独立地为-O-或单个 键,并且基团Q1和Q2中的一个选择为反式-1,4-亚环己基,则T1是F,Cl,-CF3,-OCF3,-OCHF2或其中一个含义 R1和L1,L2,L3和L4各自为H或F,适合作为IR快门的液晶相的成分。