中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

2 records (took 0.029 seconds)

    POLAR TOLANE LIQUID CRYSTALS
    2.
    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。

Patent Agency Ranking