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    CHOLESTERISCHE PHASEN BILDENDE POLYMERE, VERFAHREN ZU DEREN HERSTELLUNG SOWIE VERWENDUNG
    4.
    发明公开
    CHOLESTERISCHE PHASEN BILDENDE POLYMERE, VERFAHREN ZU DEREN HERSTELLUNG SOWIE VERWENDUNG 失效
    胆甾相精细高分子，方法的生产和使用

    公开(公告)号：EP0856025A1

    公开(公告)日：1998-08-05

    申请号：EP96937201.0

    申请日：1996-10-18

    申请人： Hoechst Research & Technology Deutschland GmbH & Co. KG

    发明人： KREUDER, Willi ,  SCHÖNFELD, Axel ,  CALUNDANN, Gordon

    IPC分类号： C08J5 ,  B29C45 ,  B29C47 ,  C08G12 ,  C08G63 ,  C08G69 ,  C08G73 ,  C09B67 ,  C09D5 ,  C09D161 ,  C09D167 ,  C09D177 ,  C09K19 ,  D01F6

    CPC分类号： C09K19/3809 ,  C08G63/60 ,  C08G63/66 ,  C08L2205/12 ,  C09B67/0098 ,  C09D5/36 ,  C09K19/00 ,  Y10T428/10 ,  Y10T428/1041 ,  Y10T428/29 ,  Y10T428/2967 ,  Y10T428/2969 ,  Y10T428/31786

    摘要： The invention concerns cholesteric phase-forming polymers, a process for their preparation and their use. Cholesteric phase-forming polymers and oligomers according to the invention substantially comprise as molecular units: A. at least one duofunctional chiral molecular unit comprising at least one cyclic structural element which is different from the monosubstituted p-phenylene group; B. at least one duofunctional achiral or racemic molecular unit which comprises at least one cyclic structural element containing at least four ring members; and C. at least one duofunctional molecular unit which can optionally be chiral or achiral and cyclic or acyclic and is different from the molecular units A and B actually used. The molecular units are connected by ester groups with (C=O)= and O-C=O, carbonic ester with O-(C=O)-O, amide groups CONH, N-substituted amide CONR, cyclic imide with six ring members, azomethines CH=N and CR=N. The groups R, which may be identical or different, can be C1-C22 alkyl, aryl, aralkyl and the non-cyclic portion can be linear or branched if the group is non-cyclic or if a combination with a non-cyclic group is present, and linear, branched and/or cyclic groups can optionally comprise at least one heteroatom which is different from C and H, and/or can optionally be substituted or even heteroatom-substituted. The substituent can in particular also carry one or a plurality of halogens, provided that the molecular unit A is not derived exclusively from camphoric acid. The polymers and oligomers according to the invention are obtained by replacing between 0.01 and 50 mol % of one or a plurality of the monomers corresponding to the molecular units B and/or C by monomers producing the chiral units A according to the invention in the prescription formula of any (nematic) liquid crystal polymer (LCP). The cholesteric phase-forming polymers and oligomers according to the invention are suitable as moulding compound granulates for further processing in known shaping processes, e.g. injection moulding. They can also be processed to form pigments for iridescent paints.

    POLYMERE MIT TRIARYLAMIN-EINHEITEN ALS ELEKTROLUMINESZENZMATERIALIEN
    5.
    发明公开
    POLYMERE MIT TRIARYLAMIN-EINHEITEN ALS ELEKTROLUMINESZENZMATERIALIEN 失效
    三芳基胺与单元作为电致发光聚合物

    公开(公告)号：EP0848739A1

    公开(公告)日：1998-06-24

    申请号：EP96930152.0

    申请日：1996-09-03

    申请人： Hoechst Research & Technology Deutschland GmbH & Co. KG

    发明人： KREUDER, Willi ,  HÖRHOLD, Hans-Heinrich ,  ROST, Henning

    IPC分类号： C09K11 ,  H05B33

    CPC分类号： H01L51/0036 ,  C09K11/06 ,  H01L51/005 ,  H05B33/14

    摘要： The invention concerns an electroluminescent material including one or more polymers containing structural units of the formula (I) in which the symbols and indices have the following meanings: Ar?1, Ar2, Ar3, Ar4, Ar5 and Ar6¿, which may be the same or different, are mononuclear and/or polynuclear aryl and/or heteroaryl groups which may be crosslinked by one or more bridges, and/or condensed, and which may also be substituted, Ar?1, Ar3, Ar5 and Ar6¿ being linked to the chain by two bonds and Ar?2 and Ar4¿ by one bond; R1 is H, a hydrocarbon group with 1 to 22 carbon atoms which may be substituted, preferably with F, and may also contain hetero atoms, preferably O, or Ar7 which, independently of Ar?1 to Ar6¿, has the same meaning as Ar?1 to Ar6¿; n is 0, 1 or 2. The properties of the electroluminescent material proposed include a low electroluminescence onset voltage and high efficiency, even though the polymers are not conjugated systems.