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    • 11. 发明授权
    • Naphthalene derivatives
    • 萘衍生物
    • US5942648A
    • 1999-08-24
    • US811179
    • 1997-03-04
    • David CoatesMark GouldingSimon GreenfieldVolker ReiffenrathReinhard HittichHerbert Plach
    • David CoatesMark GouldingSimon GreenfieldVolker ReiffenrathReinhard HittichHerbert Plach
    • C07C17/26C07C25/22C07C43/225C07C43/23C07C255/50C07C255/54C09K19/32C07C15/24
    • C07C17/263C07C25/22C07C255/50C07C255/54C07C43/225C07C43/23C09K19/322
    • Naphthalene derivatives of the fomula I ##STR1## in which: R.sup.1 is an alkyl or alkenyl radical which is unsubstituted, monosubstituted by CH or CF.sub.3 or monosubstituted by halogen and has 1 to 15 carbon atoms, it also being possible for one or more CH.sub.2 groups in these radicals to be replaced, in each case independently of one another, by --O--, --S--, ##STR2## --CO--, --CO--O--, --O--CO-- or --O--CO--O-- in such a manner that oxygen atoms are not linked directly to one another, ##STR3## m is 0, 1 or 2, n is 0 or 1, wherem+n is 1 or 2,Z.sup.1 and Z.sup.2 are each, independently of one another, --CH.sub.2 CH.sub.2 --, --C.tbd.C-- or a single bond,L.sup.1 and L.sup.2 independently of one another, are H or F,x is an alkyl or alkoxy radical which is unsubstituted, monosubstituted by CN or CF.sub.3 or substituted bi halogen and has 1 to 15 carbon atoms, or is OH, CN, SCN, OCN, NCS or Q--Y,whereQ is a single bond, (CF.sub.2).sub.r or O(CF.sub.2).sub.rr is 1 or 2, andY is H, F, Cl or Br, with the provisos thata) in the case wherem=0, Z.sup.2 =a single bond, n=1 and x=CH CF.sub.3 or SCN, L.sup.1 is F,b) in the case wherem=0, Z.sup.2 =a single bond, n=1 and X=alkyl, alkoxy or F a L.sup.1 and L.sup.2 are identical and are F.
    • 式I的萘衍生物,其中:R 1是未被取代的,被CH或CF 3单取代或被卤素单取代且具有1至15个碳原子的烷基或烯基,它们也可以在这些基团中一个或多个CH 2基团 在各种情况下彼此独立地被-O-,-S-,-CO-,-CO-O-,-O-CO-或-O-CO-O-取代,使得氧 原子不直接相互连接,m为0,1或2,n为0或1,其中m + n为1或2,Z 1和Z 2各自独立地为-CH 2 CH 2 - , - CO 3 C或单键,L 1和L 2彼此独立地是H或F,x是未被取代的,被CN或CF 3或被取代的双卤素单取代且具有1至15个碳原子的烷基或烷氧基,或者是 OH,CN,SCN,OCN,NCS或QY,其中Q为单键,(CF2)r或O(CF2)rr为1或2,Y为H,F,Cl或Br,条件是 )在m = 0的情况下,Z2 =单键,n = 1,x = CH CF 3或SCN,L1为F,b) 在m = 0的情况下,Z 2 =单键,n = 1,X =烷基,烷氧基或F a,L1和L2相同,为F.
    • 18. 发明授权
    • Liquid-crystalline mixture of low viscosity
    • 低粘度的液晶混合物
    • US5271865A
    • 1993-12-21
    • US674367
    • 1991-04-10
    • Reinhard HittichHerbert PlachVolker Reiffenrath
    • Reinhard HittichHerbert PlachVolker Reiffenrath
    • C09K19/42C09K19/44C09K19/46C09K19/52C09K19/20C09K19/30G02F1/13
    • C09K19/42C09K19/44C09K19/46
    • The invention relates to a liquid-crystalline mixture containing one or more compounds of the general formula ##STR1## in which R.sup.1 is straight-chain alkyl having 2 to 12 carbon atoms in which, in addition, one CH.sub.2 group may be replaced by --O-- or --CH.dbd.CH--, the ring A is 1,4-phenylene or trans-1,4-cyclohexylene, and r is 0 or 1, and one or more highly dielectrically positive compounds selected from the group comprising the compounds of the general formulae II, III and IV in a weight ratio between the compounds of the formula I and the compounds of the formulae II, III and IV of from 1:10 to 10:1: ##STR2## in which R.sup.2 has one of the meanings indicated for R.sup.1, and X and Y are each, independently of one another, CH or N, ##STR3## in which R.sup.2 has one of the meanings indicated for R.sup.1, and X' and Y' are CH.sub.2 or O, ##STR4## in which R.sup.2 has one of the meanings indicated for R.sup.1, r is as defined above, the rings A.sup.1 and A.sup.2 have one of the meanings indicated for A, and L is H or F.
    • PCT No.PCT / EP91 / 00156 Sec。 371日期:1991年4月10日 102(e)1991年04月10日PCT 1991年1月28日PCT PCT。 出版物WO91 / 12294 日本1991年8月22日。本发明涉及含有一种或多种通式“I”的化合物的液晶混合物,其中R 1是具有2至12个碳原子的直链烷基,其中另外一个 CH 2基团可以被-O-或-CH = CH-取代,环A是1,4-亚苯基或反式-1,4-亚环己基,r是0或1,并且选择一个或多个高反应性正性化合物 来自包含通式II,III和IV的化合物的组,其中式I化合物与式II,III和IV的化合物的重量比为1:10至10:1: 其中R2具有对R1表示的含义之一,X和Y各自独立地为CH或N,其中R 2具有对R 1表示的含义之一,X'和Y 是CH2或O,其中R2具有对R1表示的含义之一,r如上所定义,环A1和A2具有对A表示的含义之一,L是 H或F.