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    (Meth)acrylate polymers for improving the viscosity index
    5.
    发明授权
    (Meth)acrylate polymers for improving the viscosity index 有权
    （甲基）丙烯酸酯聚合物，用于改善粘度指数

    公开(公告)号：US09200233B2

    公开(公告)日：2015-12-01

    申请号：US13511031

    申请日：2010-12-08

    申请人： Rene Koschabek ,  Sandra Kuenzel ,  Markus Weber ,  Thorsten Bartels ,  Christoph Wincierz

    发明人： Rene Koschabek ,  Sandra Kuenzel ,  Markus Weber ,  Thorsten Bartels ,  Christoph Wincierz

    IPC分类号： C10M145/14 ,  C08F220/18 ,  C08F220/28 ,  C10M169/04

    CPC分类号： C10M145/14 ,  C08F220/18 ,  C08F220/28 ,  C10M169/041 ,  C10M2209/084 ,  C10M2209/1033 ,  C10M2209/1075 ,  C10N2220/021 ,  C10N2230/02 ,  C10N2230/041 ,  C10M2217/028

    摘要： The invention relates to a (meth)acrylate polymer for improving the viscosity index, which comprises a) from 5 to 60 wt % of repeating units that are derived from (meth)acrylates of formula (I), where R represents hydrogen or methyl and R1 is an alkyl radical having from 1 to 6 carbon atoms, b) from 5 to 80 wt % of repeating units that are derived from (meth)acrylates of formula (II), where R is hydrogen or methyl and R2 is an alkyl radical having from 7 to 30 carbon atoms, and c) from 15 to 90 wt % of repeating units that are derived from (meth)acrylates of formula (III), where R is hydrogen or methyl, n is an integer in the range of 2 to 500 and A is C2-C4 alkylene and R3 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms. The invention further relates to novel lubricating oil compositions, to a method for producing the above-mentioned (meth)acrylate polymers and to the use thereof for improving the viscosity index of lubricating oil compositions that comprise at least one polar base oil.

    摘要翻译： 本发明涉及用于改善粘度指数的（甲基）丙烯酸酯聚合物，其包含a）5-60重量％的衍生自式（I）的（甲基）丙烯酸酯的重复单元，其中R表示氢或甲基，和 R1是具有1至6个碳原子的烷基，b）5至80重量％的衍生自式（II）的（甲基）丙烯酸酯的重复单元，其中R是氢或甲基，R 2是烷基 具有7至30个碳原子，和c）15至90重量％的衍生自式（III）的（甲基）丙烯酸酯的重复单元，其中R是氢或甲基，n是2的整数 至500，A为C 2 -C 4亚烷基且R 3为氢原子或具有1至4个碳原子的烷基。 本发明还涉及新型润滑油组合物，用于制备上述（甲基）丙烯酸酯聚合物的方法及其用于改善包含至少一种极性基础油的润滑油组合物的粘度指数的用途。

    (METH)ACRYLATE POLYMERS FOR IMPROVING THE VISCOSITY INDEX
    6.
    发明申请
    (METH)ACRYLATE POLYMERS FOR IMPROVING THE VISCOSITY INDEX 有权
    （METH）丙烯酸酯聚合物改善粘度指数

    公开(公告)号：US20120302476A1

    公开(公告)日：2012-11-29

    申请号：US13511031

    申请日：2010-12-08

    申请人： Rene Koschabek ,  Sandra Kuenzel ,  Markus Weber ,  Thorsten Bartels ,  Christoph Wincierz

    发明人： Rene Koschabek ,  Sandra Kuenzel ,  Markus Weber ,  Thorsten Bartels ,  Christoph Wincierz

    IPC分类号： C08F220/28 ,  C08F2/00 ,  C08F226/10 ,  C10M145/14 ,  C08F226/02 ,  C08F226/06

    CPC分类号： C10M145/14 ,  C08F220/18 ,  C08F220/28 ,  C10M169/041 ,  C10M2209/084 ,  C10M2209/1033 ,  C10M2209/1075 ,  C10N2220/021 ,  C10N2230/02 ,  C10N2230/041 ,  C10M2217/028

    摘要： The invention relates to a (meth)acrylate polymer for improving the viscosity index, which comprises a) from 5 to 60 wt % of repeating units that are derived from (meth)acrylates of formula (I), where R represents hydrogen or methyl and R1 is an alkyl radical having from 1 to 6 carbon atoms, b) from 5 to 80 wt % of repeating units that are derived from (meth)acrylates of formula (II), where R is hydrogen or methyl and R2 is an alkyl radical having from 7 to 30 carbon atoms, and c) from 15 to 90 wt % of repeating units that are derived from (meth)acrylates of formula (III), where R is hydrogen or methyl, n is an integer in the range of 2 to 500 and A is C2-C4 alkylene and R3 is a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms. The invention further relates to novel lubricating oil compositions, to a method for producing the above-mentioned (meth)acrylate polymers and to the use thereof for improving the viscosity index of lubricating oil compositions that comprise at least one polar base oil.

    摘要翻译： 本发明涉及用于改善粘度指数的（甲基）丙烯酸酯聚合物，其包含a）5-60重量％的衍生自式（I）的（甲基）丙烯酸酯的重复单元，其中R表示氢或甲基，和 R1是具有1至6个碳原子的烷基，b）5至80重量％的衍生自式（II）的（甲基）丙烯酸酯的重复单元，其中R是氢或甲基，R 2是烷基 具有7至30个碳原子，和c）15至90重量％的衍生自式（III）的（甲基）丙烯酸酯的重复单元，其中R是氢或甲基，n是2的整数 至500，A为C 2 -C 4亚烷基且R 3为氢原子或具有1至4个碳原子的烷基。 本发明还涉及新型润滑油组合物，用于制备上述（甲基）丙烯酸酯聚合物的方法及其用于改善包含至少一种极性基础油的润滑油组合物的粘度指数的用途。

    Stabilization of thermolysin in aqueous solution
    8.
    发明授权
    Stabilization of thermolysin in aqueous solution 有权
    溶菌酶在水溶液中的稳定化

    公开(公告)号：US09045743B2

    公开(公告)日：2015-06-02

    申请号：US13488824

    申请日：2012-06-05

    申请人： Werner Hoelke ,  Johann-Peter Thalhofer ,  Antje Liehre ,  Markus Weber

    发明人： Werner Hoelke ,  Johann-Peter Thalhofer ,  Antje Liehre ,  Markus Weber

    IPC分类号： C12N9/54 ,  C12N9/96

    CPC分类号： C12N9/54 ,  C12N9/96 ,  C12Y304/24027

    摘要： The present invention deals with the proteolytic enzyme thermolysin which tends to be unstable in aqueous solution. The invention provides methods and compositions to enhance the stability of dissolved thermolysin in aqueous solution. Thermolysin, crude thermolysin or a lyophilizate containing thermolysin and one or more salts, is contacted with an aqueous buffer with a low salt concentration and a first solution is formed. Subsequently, a further salt in solid form is added and dissociated, thereby forming a second solution comprising thermolysin in a stabilized form.

    摘要翻译： 本发明涉及在水溶液中趋于不稳定的蛋白水解酶嗜热溶菌酶。 本发明提供了增加溶解的嗜热溶菌酶在水溶液中的稳定性的方法和组合物。 将嗜热菌蛋白酶，粗嗜热菌蛋白酶或含有嗜热菌蛋白酶和一种或多种盐的冻干物与低盐浓度的水性缓冲液接触，形成第一溶液。 随后，加入固体形式的另外的盐并解离，由此形成稳定形式的包含嗜热菌蛋白酶的第二溶液。