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    • 29. 发明申请
    • LIQUID CRYSTALLINE MIXTURE
    • 液晶混合
    • WO1988005803A1
    • 1988-08-11
    • PCT/EP1988000048
    • 1988-01-25
    • MERCK PATENT GESELLSCHAFT MIT BESCHRÄNKTER ...SAGE, Ian, CharlesLEWIS, Stephen, JohnCHAPLIN, Dominic
    • MERCK PATENT GESELLSCHAFT MIT BESCHRÄNKTER ...
    • C09K19/52
    • C09K19/42C09K19/54
    • Liquid crystalline mixtures with at least two liquid-crystalline compounds free of perfluoro alkylene groups and at least one partially fluorinated additive of formula (I): R -(CH2)m-(CF2)n-R , wherein m is 0 to 12, n is 1 to 16 and R and R each signify a group of formula (II), in which R is F or alkyl with 1-15 C atoms, being possible for one or two non-adjacent CH2 groups to be replaced by -O-, -CO-, -O-CO-, -CO-O-, -O-CO-O-, -C=C- and/or -CH=CH-, A and A in each case an unsubstituted, mono- or polysubstituted 1,4-cyclohexylene group, also possible for one or two non-adjacent CH2 groups to be replaced by -O- and/or -S-; or a 1,4-bicyclo-[2,2,2]octylene group, or a 1,4-phenylene group unsubstituted or substituted by one or two F and/or Cl atoms and/or CH3 groups and/or CN groups, being possible for one or two CH groups to be replaced by N, Z -CO-O-, -O-CO-, -CH2CH2-, -CHCN-CH2-, -CH2-CHCN-, -CH=CH-, -C=C-, -OCH2-, -CH2O, -CH=N-, -N=CH-, -N=N-, -NO=N-, -N=NO- or Z -CO-O-, -O-CO-, -CH2CH2-, -CHCN-CH2, -CH2-CHCN-, -CH=CH-, -C=C-, -OCH2-, -CH2O-, -CH=N-, -N=CH-, -N=N-, -NO=N-, -N=NO-, -(CH2)k-CO-O- or k 1 to 6, p: 0, 1, 2; q: 0, 1. R or R may also be H, with the proviso that m+p+q = 1 to 15. Means of reducing the refractive indices of a L.C. mixture by adding one or more additives of formula (I).
    • 具有至少两种不含全氟亚烷基的液晶化合物和式(I)的至少一种部分氟化的添加剂的液晶混合物:R 1 - (CH 2)m - (CF 2)n R 2,其中m是 0至12,n为1至16,R 1和R 2各自表示式(II)的基团,其中R为F或具有1-15个C原子的烷基,可能为一个或两个非 相邻的CH 2基团被-O - , - CO-,-O-CO-,-CO-O-,-O-CO-O-,-C≡C-和/或-CH = CH-取代, 在每种情况下,A 1和A 2均为未取代的单取代或多取代的1,4-亚环己基,对于一个或两个不相邻的CH 2基团可以被-O-和/或-S- ; 或未取代或被一个或两个F和/或Cl原子和/或CH 3基团和/或CN基团取代的1,4-二环[2,2,2]亚辛基或1,4-亚苯基, 一个或两个CH基团可被N,Z 1 -CO-O-,-O-CO - , - CH 2 CH 2 - , - CHCN-CH 2 - , - CH 2 -CHCN-, - CH = CH - , - C = C-,-OCH 2 - , - CH 2 O,-CH = N - , - N = CH-,-N = N-,-NO = N - , - N = NO-或Z 2 - CO-O - , - O - CO - , - CH 2 CH 2 - , - CHCN-CH 2,-CH 2 -CHCN-, - CH = CH-,-C≡C-,-OCH 2 - , - CH 2 O-,-CH = N - ,-N = CH-,-N = N-,-NO = N - , - N = NO-, - (CH 2)k-CO-O-或k 1至6,p:0,1,2; q:0,1,R 1或R 2也可以是H,前提条件是m + p + q = 1至15.降低L.C.的折射率的方法。 混合物中加入一种或多种式(I)的添加剂。