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    Stabilized aqueous polymer compositions
    2.
    发明授权
    Stabilized aqueous polymer compositions 有权
    稳定的含水聚合物组合物

    公开(公告)号：US07842741B2

    公开(公告)日：2010-11-30

    申请号：US12321552

    申请日：2009-01-22

    申请人： Friedrich Engelhardt ,  Christian Bremer ,  Anja Obermüller ,  Joachim Christian

    发明人： Friedrich Engelhardt ,  Christian Bremer ,  Anja Obermüller ,  Joachim Christian

    IPC分类号： C08K5/00

    CPC分类号： C09K8/685 ,  C08K5/0091 ,  C08K5/46

    摘要： The aqueous polymer composition comprises a water soluble polymer having a molar weight of at least 104 Daltons and comprising functional groups which may form complexes with metal ions. The aqueous polymer compositions of this invention are stabilized against thermal or other degradation processes by addition of a phenothiazine compound to allow their use even under harsh conditions.

    摘要翻译： 含水聚合物组合物包含摩尔重量至少为104道尔顿的水溶性聚合物，并且包含可与金属离子形成络合物的官能团。 本发明的水性聚合物组合物通过加入吩噻嗪化合物来稳定，防止热或其它降解过程，以使其即使在恶劣条件下也能使用。

    Stabilized aqueous polymer compositions
    4.
    发明申请
    Stabilized aqueous polymer compositions 有权
    稳定的含水聚合物组合物

    公开(公告)号：US20090192055A1

    公开(公告)日：2009-07-30

    申请号：US12321552

    申请日：2009-01-22

    申请人： Friedrich Engelhardt ,  Christian Bremer ,  Anja Obermuller ,  Joachim Christian

    发明人： Friedrich Engelhardt ,  Christian Bremer ,  Anja Obermuller ,  Joachim Christian

    IPC分类号： C09K8/68

    CPC分类号： C09K8/685 ,  C08K5/0091 ,  C08K5/46

    摘要： The aqueous polymer composition comprises a water soluble polymer having a molar weight of at least 104 Daltons and comprising functional groups which may form complexes with metal ions. The aqueous polymer compositions of this invention are stabilized against thermal or other degradation processes by addition of a phenothiazine compound to allow their use even under harsh conditions.

    摘要翻译： 含水聚合物组合物包含摩尔重量至少为104道尔顿的水溶性聚合物，并且包含可与金属离子形成络合物的官能团。 本发明的水性聚合物组合物通过加入吩噻嗪化合物来稳定，防止热或其它降解过程，以使其即使在恶劣条件下也能使用。

    Hydrophilic hydrogels with a high swelling capacity and method for producing and using them
    6.
    发明授权
    Hydrophilic hydrogels with a high swelling capacity and method for producing and using them 失效
    具有高溶胀能力的亲水性水凝胶及其制造和使用方法

    公开(公告)号：US06602950B1

    公开(公告)日：2003-08-05

    申请号：US09806944

    申请日：2001-04-06

    申请人： Joachim Dentler ,  Rüdiger Funk ,  Norbert Herfert ,  Mariola Wanior ,  Friedrich Engelhardt

    发明人： Joachim Dentler ,  Rüdiger Funk ,  Norbert Herfert ,  Mariola Wanior ,  Friedrich Engelhardt

    IPC分类号： A61L1524

    CPC分类号： C08F283/06 ,  A61L15/60 ,  C08F8/00 ,  C08F251/00 ,  C08F283/02 ,  Y10S524/916 ,  Y10S526/932 ,  Y10S604/904 ,  C08F283/00

    摘要： A hydrophilic, highly swellable hydrogel based on (co)polymerized monomers or based on graft (co)polymers and prepared by a) free-radically (co)polymerizing one-or more hydrophilic monomers or graft (co)polymerizing one or more hydrophilic monomers onto a grafting base, the average degree of neutralization of the acid-functional monomers being from 0 to 40 mol %, b) comminuting the acidic hydrogel, c) neutralizing the acidic hydrogel to an ultimate degree of neutralization of 50-85 mol % by adding a neutralizing agent, d) drying, grinding and sieving the hydrogel particles characterized by a centrifuge retention and a vertical absorption swell height, each having a specified minimum.value, coupled with an extractables content having a specified maximum value or a centrifuge retention and a vertical absorption swell height, each having a specified minimum value and an extractables content having a specified maximum value.

    摘要翻译： 基于（共）聚合单体或基于接枝（共）聚合物的亲水性，高度可溶胀的水凝胶，并通过自由基（共）聚合一种或多种亲水单体或将一种或多种亲水性单体接枝（共）聚合到 接枝碱，酸官能单体的平均中和度为0〜40摩尔％，b）粉碎酸性水凝胶，c）通过加入酸性水凝胶中和酸性水凝胶至50-85摩尔％的最终中和度 中和剂，d）干燥，研磨和筛分水凝胶颗粒，其特征在于离心机保留和垂直吸收膨胀高度，每个具有特定的最小值，加上具有特定最大值的可提取物含量或离心机保留和垂直吸收 每个具有指定的最小值的膨胀高度，以及具有指定的最大值的可提取物内容。

    Hydrophilic swellable graft copolymers, their preparation and use
    8.
    发明授权
    Hydrophilic swellable graft copolymers, their preparation and use 失效
    亲水性可溶胀接枝共聚物，其制备和用途

    公开(公告)号：US5011892A

    公开(公告)日：1991-04-30

    申请号：US498722

    申请日：1990-03-26

    申请人： Friedrich Engelhardt ,  Ulrich Riegel

    发明人： Friedrich Engelhardt ,  Ulrich Riegel

    IPC分类号： A61F13/53 ,  A61F13/49 ,  A61L15/60 ,  C08F283/06 ,  C08F290/06

    CPC分类号： C08F283/06 ,  A61L15/60

    摘要： The present invention relates to hydrophilic, swellable graft copolymers composed, in random distribution, of 0.5 to 20% by weight of radicals of the general formula I ##STR1## 79 to 99% by weight of radicals containing an acidic group, of the general formula II ##STR2## and 0.1 to 2% by weight of crosslinking structures which are derived from monomers having at least two olefinically unsaturated double bonds, where the radicals X, Y, R.sup.1 to R.sup.4 and n have the meanings given in claim 1, and which are used as absorbents for water and aqueous solutions.

    摘要翻译： 本发明涉及亲水性，可溶胀的接枝共聚物，其以随机分布的形式含有0.5-20％（重量）的通式Ⅰ（I）的基团为79-99％（重量）含酸性基团的基团， 衍生自具有至少两个烯属不饱和双键的单体的交联结构的通式II（II）和0.1至2重量％的交联结构，其中基团X，Y，R 1至R 4和n具有给定的含义 在权利要求1中，其用作水和水溶液的吸收剂。