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    POLAR TOLANE LIQUID CRYSTALS
    3.
    发明申请
    POLAR TOLANE LIQUID CRYSTALS 审中-公开
    极地特拉烷液晶

    公开(公告)号：WO0220697A2

    公开(公告)日：2002-03-14

    申请号：PCT/US0127194

    申请日：2001-08-30

    Applicant: HRL LAB LLC ,  WU SHIN TSON ,  CHAI ZHENG ,  DALTON LARRY R

    Inventor： WU SHIN-TSON ,  CHAI ZHENG ,  DALTON LARRY R

    IPC: G02F1/13 ,  C09K19/18 ,  C09K19/30 ,  C09K19/34 ,  C09K19/42 ,  C09K19/00

    CPC classification number: C09K19/3059 ,  C09K19/18 ,  C09K19/3402 ,  C09K2019/186 ,  C09K2019/3422

    Abstract: A new class of liquid crystal compounds is based on tolane and bis-tolane structures: (I), in which X is a polar group such as F (fluoro), CN (cyano), OCF3 (trifluoromethoxy), or NCS (isothiocyanate) at least one of the pairs of sites Y1 and Y2, Z1 and Z2, and for the bis-tolane derivatives, A1 and A2 are fluoro groups. T1 for the tolane derivatives is always a triple bond. For the bis-tolane derivatives, T1 and T2 are either both triple bonds or one of the two groups is a double bond with and the other remains a triple bond. Rn or Rm may be an alkyl group having the general formula CnH2n+1, an alkenyl group having the general formula CnH2n-1, an alkoxy group having the general formula OCnH2n+1, or an alkenoxy group having the general formula -OCnH2n-1. Additionally, for the tolane compounds, Rn may be a cyclohexyl substituent: (II), or a dioxane substituent: (III), in which Rx is an alkyl group having the general formula general formula CxH2x+1, an alkenyl group having the general formula CxH2x-1, an alkoxy group having the general formula OCxH2x+1, or an alkenoxy group having the general formula OCxH2x-1. These compounds exhibit useful nematic ranges and melting points. Also disclosed are eutectic mixtures including these compounds.

    Abstract translation: （I），其中X是极性基团，例如F（氟），CN（氰基），OCF3（三氟甲氧基）或NCS（异硫氰酸酯）等。 至少一对位点Y1和Y2，Z1和Z2中的至少一对，并且对于二齿ニ烯衍生物A1和A2是氟基团。 三齿derivatives衍生物的T1总是三键。 对于双二苯甲酮衍生物，T1和T2既可以是三键，也可以是两个基团中的一个与双键形成双键，另一个则为三键。 Rn或Rm可以是具有通式CnH2n + 1的烷基，具有通式CnH2n-1的烯基，具有通式OCnH2n + 1的烷氧基或具有通式-OCnH2n-1的烯氧基 。 此外，对于二苯乙炔化合物，R 11可以是环己基取代基：（II）或二恶烷取代基：（III）其中R x是具有通式通式C x H 2x + 1的烷基，具有通式 式CxH2x-1，具有通式OCxH2x + 1的烷氧基或具有通式OCxH2x-1的烯氧基。 这些化合物表现出有用的向列型范围和熔点。 还公开了包含这些化合物的低共熔混合物。

    POLAR DIPHENYLDIACETYLENE LIQUID CRYSTALS
    4.
    发明申请
    POLAR DIPHENYLDIACETYLENE LIQUID CRYSTALS 审中-公开
    极性二苯乙烯液体液晶

    公开(公告)号：WO0160946A3

    公开(公告)日：2002-02-07

    申请号：PCT/US0034403

    申请日：2000-12-18

    Applicant: HRL LAB LLC ,  UNIV KENT STATE OHIO ,  WU SHIN TSON ,  NUBERT MARY

    Inventor： WU SHIN-TSON ,  NUBERT MARY

    IPC: C07C25/24 ,  C09K19/18 ,  C07C22/08 ,  C07C25/18 ,  C07C43/225 ,  C07C255/50

    CPC classification number: C09K19/18 ,  C07C25/24 ,  C09K2019/186

    Abstract: A new class of asymmetric polar diphenyldiacetylene liquid crystal compounds and method for preparation are disclosed. The new class of liquid crystal compounds comprises the basic structure (5), wherein R1 is an alkenyl group having the general formula (C2H2n), X is a cyano group, a fluoro group, CF3, OCF3, or a chloro group, Y1 is unsubstituted, a fluoro group, a chloro group or a methyl group, Y2 is unsubstituted, a fluoro group, a chloro group, or a methyl group, Z1 is unsubstituted, a fluoro group, or a methyl group, and Z2 is unsubstituted, a fluoro group, or a methyl group. The compounds disclosed exhibit high birefringence, low rotational viscosity, and have unexpectedly broad nematic ranges. Also disclosed are eutectic mixtures comprising at least one polar diphenyldiacetylene having the general structure described above. The eutectic mixtures also have unexpectedly broad nematic ranges.

    Abstract translation: 公开了一类新型的非对称极性二苯基二乙炔液晶化合物及其制备方法。 新型液晶化合物包括碱性结构（5），其中R1是具有通式（C2H2n）的烯基，X是氰基，氟基，CF3，OCF3或氯基，Y1是 未取代的，氟基，氯基或甲基，Y2为未取代的，氟基，氯基或甲基，Z1为未取代的，氟基或甲基，Z2为未取代的， 氟基或甲基。 所公开的化合物表现出高双折射，低旋转粘度，并且具有出乎意料的宽向列范围。 还公开了包含至少一种具有上述通式结构的极性二苯基二乙炔的共晶混合物。 共晶混合物也具有出乎意料的宽向列范围。

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