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    • 3. 发明授权
    • Naphthyl organic compounds
    • 萘基有机化合物
    • US5496500A
    • 1996-03-05
    • US283714
    • 1994-08-01
    • Kenneth J. ToyneJohn W. GoodbyAlexander SeedGeorge W. GrayDamien G. McDonnelEdward P. RaynesSally E. DayKenneth J. HarrisonMichael Hird
    • Kenneth J. ToyneJohn W. GoodbyAlexander SeedGeorge W. GrayDamien G. McDonnelEdward P. RaynesSally E. DayKenneth J. HarrisonMichael Hird
    • C07C255/52C07C255/54C07C323/62C07C331/28C07D239/26C07D333/20C07D333/24C09K19/32C09K19/34C09K19/54C07D333/26G02F1/13
    • C07D239/26C07C255/52C07C255/54C07C323/62C07C331/28C07D333/20C07D333/24C09K19/322C09K19/3441C09K19/3458C09K19/3461C09K19/3497C09K19/544Y10T428/10
    • Liquid crystal compounds of formula (I) are described, where formula (I) is given as R.sub.1 --A--(X.sub.m --(B).sub.n --R.sub.2 where A is selected from nathyl, flourinated naphthyl, brominated naphthyl, B is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, X is selected from C.tbd.C, COO and C.tbd.C, m is 0 or 1, n is 0 or 1 where m is 1 and n is 0 where m is 0; provided that where A is naphthyl, n is 1 and m is 0 then B is selected from methylated phenyl, brominated phenyl, thiophene, pyrimidine and pyridine; and further provided that where A is naphthyl, X is C.tbd.C, m is 1 and n is 1, then B is selected from thiophene, pyrimidine and pyridine. Also described are liquid crystal compounds suitable for inclusion in devices utilizing pretransitional characteristics of liquid crystalline materials in the isotropic phase and described by formula (II): R.sub.3 --J--(Y).sub.p --(Z).sub.q --R.sub. 4, where J is selected from nathyl, fluorinated naphthyl, brominated naphthyl, Z is selected from phenyl, methylated phenyl, brominated phenyl, fluorinated phenyl, thiophene, pyrimidine and pyridine, R.sub.1 and R.sub.2 are independently selected from alkyl, alkoxy, alkynyl, thioalkyl, Br, CN, SCN, NCS, perfluoroalkyl, perfluoroalkoxy and hydrogen, Y is selected from C.dbd.C, COO and C.dbd.C, p is 0 or 1, q is 0 or 1 where p is 1 and q is 0 where p is 0.
    • 描述了式(I)的液晶化合物,其中式(I)为R1-A-(Xm-(B)n-R2,其中A选自萘基,氟化萘基,溴化萘基,B选自苯基 ,甲基化苯基,溴化苯基,氟化苯基,噻吩,嘧啶和吡啶,R1和R2独立地选自烷基,烷氧基,炔基,硫代烷基,Br,CN,SCN,NCS,全氟烷基,全氟烷氧基和氢,X选自C 3,C,COO和C 3 B C,m为0或1,n为0或1,其中m为1,n为0,其中m为0;条件是其中A为萘基,n为1,m为0,B为 选自甲基化苯基,溴化苯基,噻吩,嘧啶和吡啶;并且进一步规定,其中A为萘基,X为C 3 C 10,m为1,n为1,则B为噻吩,嘧啶和吡啶。 是适于包含在利用液晶材料的预过滤特性的器件中的液晶化合物 各向同性相并由式(II)描述:R3-J-(Y)对(Z)qR 4,其中J选自萘基,氟化萘基,溴化萘基,Z选自苯基,甲基化苯基,溴化苯基 ,氟化苯基,噻吩,嘧啶和吡啶,R1和R2独立地选自烷基,烷氧基,炔基,硫代烷基,Br,CN,SCN,NCS,全氟烷基,全氟烷氧基和氢,Y选自C = C,COO和C = C,p为0或1,q为0或1,其中p为1,q为0,其中p为0。
    • 7. 发明授权
    • Liquid crystal polymers
    • 液晶聚合物
    • US5773179A
    • 1998-06-30
    • US894616
    • 1997-10-22
    • Georg H. R. MehlJohn W. GoodbyDavid Lacey
    • Georg H. R. MehlJohn W. GoodbyDavid Lacey
    • G02F1/13C08G63/181C08G63/672C08G63/68C08G63/685C08K5/03C08K5/101C08K5/315C08K5/3462C08L67/02C09K19/38C09K19/42C09K19/44C09K19/46G11B7/24C09K19/00B32B27/06C08G65/38
    • C09K19/3838C08G63/6856C09K19/42C09K19/46Y10T428/31786
    • Materials of formula (I) are provided, wherein X.sub.1 -X.sub.5 are independently selected from H, F, Cl, NO.sub.2, CF.sub.3, OR, R, SR, .paren open-st.CO-- or .paren open-st.CO-- where R is C.sub.1-15 branched or straight chain alkyl; provided that one of X.sub.1 -X.sub.5 is selected from .paren open-st.CO-- or .paren open-st.OC--; p is at least 2; W=single bond, phenyl, fluorinated phenyl, .dbd., .tbd., cyclohexyl, thiophene, CO, OC; T.sub.1, T.sub.2, T.sub.3, T.sub.4 are independently selected from H, F, Cl, NO.sub.2, CF.sub.3, OR, R, SR, where R is C.sub.1-15 branched or straight chain alkyl; g=0 or 1; X is selected from CO.sub.2 and OOC; n is selected from 1-5; m is selected from 1-20, Y is selected from O, S, CH.sub.2, CO.sub.2, OOC; Q is CH.sub.2 and when m is greater than 1 then non-adjacent CH.sub.2 groups may be substituted by O or S; rings A, B and C are independently selected from phenyl, cyclohexyl and pyrimidine and may be independently of each other substituted with at least one of Cl or F; linking groups A and B may be selected from single bond CO.sub.2, OOC provided that if ring B is not present then at least one of A or B is a single bond; Z is selected from CN, F, Cl, NO.sub.2, R, OR, CO.sub.2 R, CF.sub.3, OOCR, NCS, SCN, where R=straight chain or branched chain alkyl and may include from 1-16 carbon atoms and including where one or more non-adjacent CH.sub.2 groups may be substituted by CH(CN), CH(CF.sub.3), CH(Cl), CH(CH.sub.3) in chiral or non-chiral form.
    • PCT No.PCT / GB96 / 03121 Sec。 371日期1997年10月22日第 102(e)日期1997年10月22日PCT 1996年12月18日PCT PCT。 公开号WO97 / 23541 日期1997年7月3日提供式(I)的材料,其中X1-X5独立地选自H,F,Cl,NO2,CF3,OR,R,SR,+545CO-或+545CO-,其中R是 C1-15支链或直链烷基; 条件是X1-X5中的一个选自+545个CO-或+545个OC-; p至少为2; W =单键,苯基,氟化苯基,=,3BOND,环己基,噻吩,CO,OC; T 1,T 2,T 3,T 4独立地选自H,F,Cl,NO 2,CF 3,OR,R,SR,其中R是C 1-15支链或直链烷基; g = 0或1; X选自CO2和OOC; n选自1-5; m选自1-20,Y选自O,S,CH 2,CO 2,OOC; Q是CH 2,当m大于1时,不相邻的CH 2基可被O或S取代; 环A,B和C独立地选自苯基,环己基和嘧啶,并且可以彼此独立地被Cl或F中的至少一个取代; 连接基团A和B可以选自单键CO 2,OOC,条件是如果环B不存在,则A或B中的至少一个是单键; Z选自CN,F,Cl,NO 2,R,OR,CO 2 R,CF 3,OOCR,NCS,SCN,其中R =直链或支链烷基,并且可以包括1-16个碳原子,并且包括其中一个或多个 不相邻的CH 2基团可以被手性或非手性形式的CH(CN),CH(CF 3),CH(Cl),CH(CH 3)取代。
    • 8. 发明申请
    • LIQUID CRYSTAL COMPOUNDS
    • 液晶化合物
    • US20110141418A1
    • 2011-06-16
    • US13056924
    • 2009-07-29
    • Joanne E. EnnisJohn W. GoodbyRachel P. TuffinIan C. Sage
    • Joanne E. EnnisJohn W. GoodbyRachel P. TuffinIan C. Sage
    • G02F1/1337C07C321/00C07C69/74
    • C09K19/28C09K19/3087C09K2019/0407
    • The present invention relates to improved liquid crystal compounds which contain a mesogenic core which comprises a group of sub-formula (i) wherein R3 and R4 are independently selected from hydrogen, halogen or CF3, provided at least one of R3 or R4 is selected from halogen or CF3. The sub-formula (i) group may be located at any position within the mesogenic core of the liquid crystal compound, either at the terminus of the liquid crystal core or alternatively substantially in the middle of the liquid crystal core. The compounds of the invention provide compounds which when added to LC mixtures provide increasing birefringence, lowering of melting points, lowering clearing points, and lowering viscosities. These compounds and mixtures may fmd particular use in imaging or display media, such as monitors or televisions.
    • 本发明涉及含有介晶核的改进的液晶化合物,其包含其中R 3和R 4独立地选自氢,卤素或CF 3的亚式(ⅰ)基团,只要R3或R4中的至少一个选自: 卤素或CF 3。 子式(i)基团可以位于液晶化合物的介晶核心内的任何位置,无论是在液晶核心的末端还是基本上在液晶核心的中间。 本发明的化合物提供了当加入LC混合物时提供增加的双折射,降低熔点,降低清除点和降低粘度的化合物。 这些化合物和混合物可能特别用于成像或显示介质,如显示器或电视机。