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    COPOLYMERMISCHUNG ENTHALTENDES DISPERGIERMITTEL
    9.
    发明公开
    COPOLYMERMISCHUNG ENTHALTENDES DISPERGIERMITTEL 有权

    公开(公告)号：EP2373738A1

    公开(公告)日：2011-10-12

    申请号：EP09756517.0

    申请日：2009-11-25

    申请人： Construction Research & Technology GmbH

    发明人： LORENZ, Klaus ,  VIERLE, Mario ,  ALBRECHT, Gerhard ,  WIMMER, Barbara ,  WAGNER, Petra ,  SCHOLZ, Christian

    IPC分类号： C08L29/10 ,  C08L33/02 ,  C08L35/08 ,  C04B24/26

    CPC分类号： C04B24/2647 ,  C04B24/2658 ,  C04B24/267 ,  C04B40/0039 ,  C04B2103/32 ,  C04B2103/408 ,  C08G65/2609 ,  C08L29/10 ,  C08L33/02 ,  C08L33/066 ,  C08L33/14 ,  C08L33/26 ,  C08L35/08 ,  C08L43/02 ,  C08L71/02 ,  C08L2205/02 ,  C08L2666/04 ,  C08L2666/22

    摘要： The invention relates to a polymer composition comprising 3 to 95 wt % of a copolymer H and 3 to 95 wt % of a copolymer K, wherein the copolymers H and K each have polyethermacromonomer structure units and acid monomer structure units that are each present in the copolymers H and K in a molar ratio of 1 : 20 to 1 : 1, and at least 20 mol % of all structure units of the copolymer H and at least 25 mol % of all structure units of the copolymer K are each present in the form of acid monomer structure units, the polyethermacromonomer structure units of the copolymers H and K each have at least 5 side chains comprising ether-oxygen atoms, the number of the ether-oxygen atoms per side chain of the polyethermacromonomer structure units of the copolymers H and K each vary such that the corresponding frequency distribution diagrams, in which the number of ether-oxygen atoms per side chain of a polyethermacromonomer structure unit is applied to the x-axis and the related frequencies for the copolymers H or K are applied to the y-axis, each comprise at least 2 maxima, the x-axis values of which each deviate from one another by more than 7 ether-oxygen atoms, wherein the frequency distribution diagrams of the copolymers H and K differ from one another insofar as the x-axis value of at least one maximum of the copolymer H deviates by more than 5 ether-oxygen atoms from the x-axis values of all maxima of the copolymer K and/or the arithmetically determined number of ether-oxygen atoms of the polyethermacromonomer structure units of the copolymers H and K deviate from one another by more than 5 ether-oxygen atoms.

    摘要翻译： 本发明涉及一种聚合物组合物，其包含3-95重量％的共聚物H和3-95重量％的共聚物K，其中共聚物H和K各自具有聚醚大分子单体结构单元和酸单体结构单元，其各自存在于 共聚物H和K以1:20至1:1的摩尔比存在，并且共聚物H的全部结构单元的至少20摩尔％和共聚物K的全部结构单元的至少25摩尔％分别以 形式的酸单体结构单元中，共聚物H和K的聚醚大分子单体结构单元各自具有至少5个包含醚 - 氧原子的侧链，共聚物H的聚醚大分子单体结构单元的每个侧链的醚 - 氧原子的数目 和K各自变化，使得相应的频率分布图（其中聚醚大分子单体结构单元的每个侧链的醚氧原子的数目被应用于x轴）和相关的copo频率 在Y轴上施加L型H或K，每个包含至少2个最大值，其x轴值彼此相差超过7个醚氧原子，其中共聚物H和H的频率分布图 K彼此不同，只要共聚物H的至少一个最大值的x轴值偏离共聚物K所有最大值的x轴值超过5个醚 - 氧原子和/或算术确定的数目 共聚物H和K的聚醚大分子单体结构单元的醚 - 氧原子彼此偏离超过5个醚 - 氧原子。

    SEMIKONTINUIERLICH BETRIEBENES VERFAHREN ZUR HERSTELLUNG VON COPOLYMEREN
    10.
    发明公开
    SEMIKONTINUIERLICH BETRIEBENES VERFAHREN ZUR HERSTELLUNG VON COPOLYMEREN 有权
    SEMI连续运行用于生产共聚物

    公开(公告)号：EP2257578A1

    公开(公告)日：2010-12-08

    申请号：EP09723023.9

    申请日：2009-02-10

    申请人： Construction Research & Technology GmbH

    发明人： ALBRECHT, Gerhard ,  LORENZ, Klaus ,  SCHOLZ, Christian ,  WAGNER, Petra

    IPC分类号： C08F220/04 ,  C08F220/26

    CPC分类号： C08F220/04 ,  C08F220/26

    摘要： The invention relates to a method for producing a copolymer in a semi-continuous operational mode in a polymerisation device containing a polymerisation reactor that is connected to a dosing device. An acid monomer, and a polyether macromonomer and water are respectively introduced into the dosing device and the polymerisation reactor, said acid monomer being fed into the polymerisation reactor from the dosing device, and prior to and/or during the feeding process of the acid monomer into the polymerisation reactor, a radical polymerisation initiator is introduced into the polymerisation reactor such that an aqueous medium is obtained in the polymerisation reactor, in which the acid monomer and polyether macromonomer are converted by radical polymerisation in order to form the copolymer. The polyether macromonomer introduced into the polymerisation reactor is converted by radical polymerisation to at least 70 Mol -%. An acid structure unit is produced by converting the acid monomer into the copolymer, said acid structure unit lowering the pH-value of the aqueous medium to a lower amount than that of the acid monomer. Dosing of the acid monomer occurs in the polymerisation reactor in such a manner that a polymerisation pH value is set in the aqueous medium and then, as many acid monomers per time unit are introduced into the polymerisation reactor until the conversion of 70 Mol-% of the polyether macromonomer introduced into the polymerisation reactor is reached, such that the difference in the pH-value in the aqueous medium and the initially set polymerisation-pH-value is at most ± 0,3.