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7 条记录 (耗时 0.024 秒)

    Use of an apparatus for adding at least one additive to a reactor interior
    1.
    发明授权
    Use of an apparatus for adding at least one additive to a reactor interior 有权
    使用将至少一种添加剂添加到反应器内部的装置

    公开(公告)号：US08206027B2

    公开(公告)日：2012-06-26

    申请号：US11994138

    申请日：2006-07-03

    申请人： Annemarie Hillebrecht ,  Uwe Stüven ,  Leo Van Miert ,  Dominicus van Esbroeck ,  Bernd Brian ,  Siegfried Chszaniecki

    发明人： Annemarie Hillebrecht ,  Uwe Stüven ,  Leo Van Miert ,  Dominicus van Esbroeck ,  Bernd Brian ,  Siegfried Chszaniecki

    IPC分类号： B01F13/00

    CPC分类号： C08F2/01 ,  B01J8/003 ,  B01J8/0045 ,  B01J2208/00752 ,  B01J2208/00769

    摘要： The invention relates to the use of an apparatus for adding at least one solid or viscous liquid additive, or an additive dispersed in solvent, to a reactor interior of a reactor for preparing crosslinked, finely divided polymers by copolymerizing (a) water-soluble, monoethylenically unsaturated monomers and (b) from 0.001 to 5 mol %, based on the monomers (a), of monomers comprising at least two polymerizable groups, (c) from 0 to 20 mol %, based on the monomers (a), of water-insoluble monoethylenically unsaturated monomers, where the apparatus comprises at least one screw for conveying the at least one additive and the at least one screw ends in an addition orifice substantially flush with the inner wall of the reactor interior.

    摘要翻译： 本发明涉及一种用于将至少一种固体或粘稠液体添加剂或分散在溶剂中的添加剂添加到用于制备交联的细碎聚合物的反应器内部的装置的用途，其通过以下方式共聚合（a）水溶性， 单烯属不饱和单体和（b）基于单体（a）0.001至5摩尔％的包含至少两个可聚合基团的单体，（c）基于单体（a）的0至20摩尔％ 水不溶性单烯属不饱和单体，其中该装置包括用于将至少一种添加剂输送的至少一个螺杆和至少一个与反应器内部的内壁齐平的添加孔的螺杆端。

    Cross-linked, water-swellable polymer and method for producing the same
    5.
    发明授权
    Cross-linked, water-swellable polymer and method for producing the same 失效
    交联的水溶胀性聚合物及其制造方法

    公开(公告)号：US07393908B2

    公开(公告)日：2008-07-01

    申请号：US10399185

    申请日：2001-10-17

    申请人： Wilfried Heide ,  Stefan Wickel ,  Thomas Daniel ,  Uwe Stüven

    发明人： Wilfried Heide ,  Stefan Wickel ,  Thomas Daniel ,  Uwe Stüven

    IPC分类号： C08F236/20 ,  C08F220/04 ,  C08F220/08 ,  C08F220/54

    CPC分类号： C08F220/56 ,  C08F220/04

    摘要： The invention relates to a cross-linked, water-swellable polymer that contains polymerized into it moieties of a) water-soluble, monoethylenically unsaturated monomers, and b) 0.001 to 5 mole % based on the monomers a) of a cross-linking combination, b1) a frist cross-linking agent with at least two (meth)acrylic ester moieties in the molecule and b2) a second cross-linking agent with at least two (meth)allyloxy moieties in the molecule, the molar ratio of b1) to b2) ranging from 0.7:1 to 10:1. The polymer according to the invention has a balanced property profile as regards absorptivity, gel strength, absorption speed and extractable componenents and can be advantageously produced by a continuous method.

    摘要翻译： 本发明涉及交联的水溶胀性聚合物，其包含聚合成a）水溶性单烯属不饱和单体的部分，和b）基于单体a）交联组合物的0.001至5摩尔％ ，b1）分子中具有至少两个（甲基）丙烯酸酯部分的第一交联剂，和b2）分子中具有至少两个（甲基）烯丙氧基部分的第二交联剂，b1）的摩尔比， 至b2）范围为0.7：1至10：1。 根据本发明的聚合物在吸收性，凝胶强度，吸收速度和可萃取成分方面具有平衡的性能特征，并且可以有利地通过连续方法制备。

    Process for modifying hydrophilic polymers
    7.
    发明授权
    Process for modifying hydrophilic polymers 失效
    改性亲水聚合物的方法

    公开(公告)号：US06300423B1

    公开(公告)日：2001-10-09

    申请号：US08231985

    申请日：1994-04-21

    申请人： Friedrich Engelhardt ,  Uwe Stüven ,  Manfred Mayer

    发明人： Friedrich Engelhardt ,  Uwe Stüven ,  Manfred Mayer

    IPC分类号： C08F832

    CPC分类号： B01F3/1207 ,  C08J3/203

    摘要： The present invention relates to a process for modifying hydrophilic polymers by mixing with a modifier, characterized in that the pulverulent polymer and the modifier are introduced continuously into a vertical, cylindrical mixer, mixed at a power of from 1,000 to 5,000 Wh/m3 of powder by means of rotating blades at a blade rate of from 100 to 300 s−1 at a residence time of 1-10 seconds, during which the powder is passed through zones having energy dissipation densities of 300-600 W/l of mixer volume.

    摘要翻译： 本发明涉及一种通过与改性剂混合来改性亲水性聚合物的方法，其特征在于将粉状聚合物和改性剂连续引入垂直的圆柱形混合器中，以1,000至5,000Wh / m3粉末的功率混合 通过在1-10秒的停留时间以100-300秒-1的叶片速率旋转叶片，在此期间粉末通过具有300-600W / l混合器体积的能量消散密度的区域。