Laterally cyano- and fluoro-substituted terphenyls
    12.
    发明授权
    Laterally cyano- and fluoro-substituted terphenyls 失效
    侧面氰基和氟取代的三联苯

    公开(公告)号:US5358663A

    公开(公告)日:1994-10-25

    申请号:US946773

    申请日:1992-09-18

    摘要: Laterally cyano-substituted terphenyls of formula (I), wherein R.sup.1 and R.sup.2 are independently selected from hydrogen or C.sub.1-15 alkyl, alkoxy, or alkyl or alkoxy in which one or more CH.sub.2 groups are replaced by O, COO, OOC, CHX, CX.sub.2, CH=CX, CX=CH, CX=CX, where X is fluorine or chlorine. CRCN where R is alkyl, or C.tbd.C or in which a terminal CH.sub.3 of the said alkyl or alkoxy chain is replaced by CF.sub.3, n is 0 or 1, and the CN and F (if present) substituent are independently located in any of the available substitution positions. Liquid crystal materials containing these terphenyls are also described.

    摘要翻译: PCT No.PCT / GB88 / 00880 Sec。 371日期1990年04月11日 102(e)日期1990年04月11日PCT提交1988年10月19日PCT公布。 第WO89 / 03821号公报 日本公开说明书。1989年5月5日授权。式(I)的单个氰基取代的三联苯,其中R 1和R 2独立地选自氢或C1-15烷基,烷氧基或烷基或烷氧基,其中一个或多个CH 2基团被O取代, COO,OOC,CHX,CX2,CH = CX,CX = CH,CX = CX,其中X是氟或氯。 其中R是烷基或C 3 B C或其中所述烷基或烷氧基链的末端CH 3被CF 3所取代的CRCN,n是0或1,并且CN和F(如果存在))取代基独立地位于 可用的替代职位。 还描述了含有这些三联苯的液晶材料。

    Liquid crystal compounds, mixtures and devices
    14.
    发明授权
    Liquid crystal compounds, mixtures and devices 失效
    液晶化合物,混合物和装置

    公开(公告)号:US5595682A

    公开(公告)日:1997-01-21

    申请号:US416897

    申请日:1995-04-18

    摘要: Liquid crystal compounds having the formula (I) ##STR1## in which A.sub.1 is alkyl, alkoxy or alkenyl; X.sub.1, X.sub.2, X.sub.3 and X.sub.4 are independently halogens, m, n, p and q are independently 0, 1, 2, 3 or 4 such that m+n+p+q.noteq.0; Y is O or COO; and A.sub.2 is an end group of the formula (II), ##STR2## where Z is halogen, CH.sub.3, CN, CF.sub.3 or, CHF.sub.2 ; R is a linear or branched alkyl group or H; and R.sub.1 is a linear or branched alkyl group or H.

    摘要翻译: PCT No.PCT / GB93 / 01133 Sec。 371日期1995年04月18日 102(e)日期1995年4月18日PCT提交1993年5月28日PCT公布。 公开号WO93 / 25631 日本公报1993年12月23日具有式(I)的液晶化合物其中A 1为烷基,烷氧基或烯基; X1,X2,X3和X4独立地为卤素,m,n,p和q独立地为0,1,2,3或4,使得m + n + p + q NOTEQUAL 0; Y为O或COO; 并且A 2是式(II)的末端基团,其中Z是卤素,CH 3,CN,CF 3或CHF 2; R是直链或支链烷基或H; 并且R 1是直链或支链烷基或H.

    Cyano-alicyclic esters in liquid crystal compositions
    18.
    发明授权
    Cyano-alicyclic esters in liquid crystal compositions 失效
    液晶组合物中的氰基 - 水解酯

    公开(公告)号:US5147577A

    公开(公告)日:1992-09-15

    申请号:US359790

    申请日:1989-06-01

    摘要: Compounds suitable for use as constituents of ferroelectric smectic liquid crystal compositions, which are ester of formula (I), where R.sub.2 and R.sub.3 together represent the residue of an alicyclic hydrocarbon ring system where *C is an asymmetric carbon atom and X is a chain of up to three linked aromatic or alicyclic six-membered organic cyclic groups, laterally and/or terminally substituted. Preferred compounds have a formula (II), where R.sub.1 is alkyl or alkoxy, A, B, and D are phenyl, fluoro or chloro substituted phenyl or cyclohexyl, n is 0 or 1, Y is a bond or CH.sub.2 CH.sub.2 if n is 0, or a bond CH.sub.2 CH.sub.2 COO or COO if n is 1. Preferred groups C(CN)R.sub.2 R.sub.3 are formula (III) and (IV). ##STR1##

    摘要翻译: 适用于作为式(I)的酯的铁电近晶液晶组合物的组分的化合物,其中R 2和R 3一起表示脂环烃环系统的残基,其中* C是不对称碳原子,X是链 最多三个连接的芳族或脂环族六元有机环状基团,横向和/或末端取代的。 优选的化合物具有式(II),其中R 1是烷基或烷氧基,A,B和D是苯基,氟或氯取代的苯基或环己基,n是0或1,如果n是0,Y是一个键或CH 2 CH 2, 或者如果n为1,则为CH2CH2COO或COO键。优选基团C(CN)R2R3为式(III)和(IV)。 (一)图像(二)<图像>(三)<图像>(四)

    Liquid crystal cyanoalkanes and cyanoalkenes
    20.
    发明授权
    Liquid crystal cyanoalkanes and cyanoalkenes 失效
    液晶氰基烷烃和氰基烯烃

    公开(公告)号:US5456859A

    公开(公告)日:1995-10-10

    申请号:US958061

    申请日:1992-10-08

    摘要: There is disclosed a cyanoalkane and cyanoalkene of general formula (I) which shows liquid crystalline properties: wherein R and R.sup.1 are independently C.sub.1-12 alkyl, alkoxy, perfluoroalkyl or perfluoroalkoxy; rings A, B, C and D are independently phenyl, which may carry one or two halogen substituents, trans-cyclohexyl, or (2, 2, 2) bicyclooctyl, each of a, b, c or d being independently 0 or 1 provided (a+b+c+d) is 2 or 3; links A and C are independently a single bond, CH.sub.2 CH.sub.2, COO, OOC, CH.sub.2 O or OCH.sub.2 ; n, m and p are independently 0 or an integer 1 to 4 provided (n+m+p) is not 0; W and Z are independently selected --CH.dbd.C(CN)-- and --C(CN).dbd.CH--; X and Y are independently selected from --CHCN-- and --C(CN).sub.2 --; w, x, y and z are 0 or 1, provided that w and z are 0 if x and/or y are 1, and further provided that at least one of w, x, y and z is 1.

    摘要翻译: 公开了通式(I)的氰基链烷烃和氰基烯烃,其表现出液晶性质:其中R和R 1独立地为C 1-12烷基,烷氧基,全氟烷基或全氟烷氧基; 环A,B,C和D独立地是苯基,其可以带有一个或两个卤素取代基,反 - 环己基或(2,2,2)双环辛基,a,b,c或d中的每一个独立地为0或1, (a + b + c + d)为2或3; 连接A和C独立地是单键,CH2CH2,COO,OOC,CH2O或OCH2; n,m和p独立地为0或1〜4的整数,(n + m + p)不为0; W和Z独立地选自-CH = C(CN) - 和-C(CN)= CH-; X和Y独立地选自-CHCN-和-C(CN)2 - ; w,x,y和z为0或1,条件是如果x和/或y为1,则w和z为0,并且进一步规定w,x,y和z中的至少一个为1。