ORGANIC LIGHT EMITTING SYSTEMS
    1.
    发明申请
    ORGANIC LIGHT EMITTING SYSTEMS 审中-公开
    有机发光系统

    公开(公告)号:WO2009092671A3

    公开(公告)日:2009-10-08

    申请号:PCT/EP2009050494

    申请日:2009-01-16

    CPC classification number: C09K11/06 C07F15/0033 H05B33/14 H05B33/28

    Abstract: Novel electrophosphorescent copolymers of the composition [A1]x1, [A2]x2, [A3]x3, [A4]x4, [A5]x5 wherein the structural units A1, A2, A3, A4 and/or A5 are in blocks or at random, and the copolymer is linear or crosslinked, and A1 is an organic radical of a phosphorescent light emitting moiety; A2 is an organic radical providing host functionality; A3 is an organic radical providing electron transport functionality; A4 is an organic radical providing hole transport functionality; A5 is a radical derived from aliphatic or aromatic organic monomers; x1 is a number from 1 to about 1000; x2, x3, x4 and x5 independently are numbers from 0 to about 100 000, with the proviso that the sum (x1 + x2 + x3 + x4 + x5) is at least 5, especially greater than 9; are characterized in that A1 contains a metal benzotriazole complex moiety or A2 is selected from repeating unit(s) of the formulae (III), (IV), where the symbols are as defined in claim 1. The novel copolymers are useful as active materials e.g. in electroluminescent devices.

    Abstract translation: 组合物[A1] x1,[A2] x2,[A3] x3,[A4] x4,[A5] x5的新型电致磷光共聚物,其中结构单元A1,A2,A3,A4和/或A5是块或在 无规,共聚物是直链或交联的,A1是磷光发光部分的有机基团; A2是提供主体功能的有机基团; A3是提供电子传递功能的有机基团; A4是提供空穴传输功能的有机基团; A5是衍生自脂族或芳族有机单体的基团; x1是从1到约1000的数字; x2,x3,x4和x5独立地为0至约100000的数字,条件是(x1 + x2 + x3 + x4 + x5)之和至少为5,特别大于9; 其特征在于A1含有金属苯并三唑配合物部分或A2选自式(III),(IV)的重复单元,其中符号如权利要求1中所定义。新型共聚物可用作活性材料 例如 在电致发光器件中。

    Manufacture of esters
    2.
    发明专利

    公开(公告)号:AU2006314805B2

    公开(公告)日:2012-02-02

    申请号:AU2006314805

    申请日:2006-11-09

    Applicant: BASF SE

    Abstract: The invention relates to a process in which a compound RCOOR (I) is made by a transesterification reaction of an ester compound RCOOR (II) with an alcohol ROH (III) in the presence of a transesterification catalyst, wherein R is H or C alkyl or CH=CR-; R is C alkyl; R is selected from the group consisting of alkyl having at least 4 carbon atoms, cycloalkyl having at least 5 carbon atoms, aryl, aralkyl, alkaryl and amino alkyl; and R is -H or - C alkyl, wherein alcohol ROH (IV) is formed as a byproduct and in which said byproduct (IV) is removed by distillation in the presence of an entrainer, in which the entrainer is a compound that suppresses the formation of an azeotrope between compound (II) and byproduct (IV). The process can be useful in the preparation of esters such as dimethyl amino ethyl (meth) acrylate. The invention also provides a method of separating alcohols and esters. In a further form of the invention a process of preparing esters by a transesterification process is provided in which the transesterification catalyst is homogenous.

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