利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.027 秒)

    Process for the continuous production of superabsorbent polymers from pan emulsions
    6.
    发明授权
    Process for the continuous production of superabsorbent polymers from pan emulsions 失效
    从泛乳液连续生产超吸收性聚合物的方法

    公开(公告)号：US5728774A

    公开(公告)日：1998-03-17

    申请号：US771575

    申请日：1996-12-20

    申请人： Gunter Sackmann ,  Sergej Schapowalow ,  Martin Ullrich ,  Helmut Brod

    发明人： Gunter Sackmann ,  Sergej Schapowalow ,  Martin Ullrich ,  Helmut Brod

    IPC分类号： C08F8/12 ,  C08F20/00 ,  C08F20/44 ,  H01B3/44 ,  C08F220/44 ,  C08F220/56

    CPC分类号： H01B3/448 ,  C08F8/44 ,  C08F2800/20 ,  C08F2810/20

    摘要： A process for the continuous production of superabsorbent polymers, characterised in that aqueous emulsions of uncross-linked and cross-linked polyacrylonitrile homopolymers and/or copolymers, the polyacrylonitrile concentrations in the reaction mixture being from 10 to 45 w.t. %, are hydrolysed with aqueous alkali hydroxide solutions at 50.degree. to 100.degree. C. in a continuously operating reactor suitable for carrying out highly viscous reactions, and that from the highly viscous gels formed the products in the form of superabsorbent powders are continuously precipitated by means of continuous precipitation using low-boiling monoalcohols, and the use thereof in sanitary articles, as water-storing materials in agriculture or for sheathing electrical cables.

    摘要翻译： 用于连续生产超吸收性聚合物的方法，其特征在于，未交联和交联的聚丙烯腈均聚物和/或共聚物的水乳液，反应混合物中的聚丙烯腈浓度为10至45w.t. ％，在适用于进行高粘度反应的连续操作的反应器中，在50至100℃下用碱金属氢氧化物水溶液水解，并且由高粘度凝胶形成的超吸收性粉末形式的产物通过 使用低沸点一元醇连续沉淀的方法，以及在卫生制品中的用途，作为农业中的储水材料或护套电缆。

    Mixer having a centrally disposed helical or anchor agitator and eccentrically disposed screw or blade agitator
    10.
    发明授权
    Mixer having a centrally disposed helical or anchor agitator and eccentrically disposed screw or blade agitator 失效
    搅拌机具有中心设置的螺旋或锚定搅拌器和偏心设置的螺杆或叶片搅拌器

    公开(公告)号：US07871193B2

    公开(公告)日：2011-01-18

    申请号：US11572146

    申请日：2005-07-02

    申请人： Helmut Brod ,  Stefanie Köhler ,  Reinhold Rose

    发明人： Helmut Brod ,  Stefanie Köhler ,  Reinhold Rose

    IPC分类号： B01F7/24

    CPC分类号： B01F7/241 ,  B01F3/10 ,  B01F7/00416 ,  B01F7/00433 ,  B01F7/1665 ,  B01F2215/0409 ,  B01F2215/0422

    摘要： A mixer having improved axial and radial mixing which retains good mixing time even during large viscosity changes, comprising a housing with at least one helical or anchor agitator located centrally in the housing in combination with at least one eccentrically arranged screw or blade agitator, preferably in mutual engagement, the combination of a helical agitator and a screw agitator enabling a much shorter mixing time as compared to a mixer having only a helical agitator without a screw agitator.

    摘要翻译： 一种具有改进的轴向和径向混合的混合器，即使在大的粘度变化期间也保持良好的混合时间，包括具有位于壳体中心的至少一个螺旋或锚定搅拌器的壳体，与至少一个偏心布置的螺杆或叶片搅拌器组合，优选地 相互接合，螺旋搅拌器和螺旋搅拌器的组合，与仅具有螺旋式搅拌器而不使用螺杆搅拌器的混合器相比，可实现短得多的混合时间。