会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明申请
    • POLAR TOLANE LIQUID CRYSTALS
    • 极地特拉烷液晶
    • WO0220697A2
    • 2002-03-14
    • PCT/US0127194
    • 2001-08-30
    • HRL LAB LLCWU SHIN TSONCHAI ZHENGDALTON LARRY R
    • WU SHIN-TSONCHAI ZHENGDALTON LARRY R
    • G02F1/13C09K19/18C09K19/30C09K19/34C09K19/42C09K19/00
    • C09K19/3059C09K19/18C09K19/3402C09K2019/186C09K2019/3422
    • 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.
    • (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。