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8 条记录 (耗时 0.012 秒)

    PROCESS FOR PRODUCTION OF SUPERABSORBENT POLYMER GEL WITH SUPERABSORBENT POLYMER FINES
    1.
    发明公开
    PROCESS FOR PRODUCTION OF SUPERABSORBENT POLYMER GEL WITH SUPERABSORBENT POLYMER FINES 有权
    用于生产超吸收性聚合物凝胶与再循环SUPERABSORBIERDEN POLYMERFEINSTTEILCHEN

    公开(公告)号：EP2340265A1

    公开(公告)日：2011-07-06

    申请号：EP09736905.2

    申请日：2009-10-13

    申请人： Evonik Stockhausen, LLC

    发明人： TIAN, Gonglu ,  SMITH, Scott J. ,  PATE-LINTON, Janet

    IPC分类号： C08F265/04 ,  C08F265/06 ,  C08L51/00 ,  C08J3/00 ,  C08L101/02 ,  A61L15/60

    CPC分类号： B01J20/26 ,  C08F265/04 ,  C08F265/06 ,  C08L51/003 ,  C08L2666/02 ,  C08L2666/04

    摘要： A process is described for recycling superabsorbent polymer fines into a process that includes treating the superabsorbent polymer fines with caustic and a polymerization step for making the superabsorbent polymer gel. The process requires treating the superabsorbent polymer fines with a caustic, followed by mixture with polymerizable monomer solution, and polymerizing the mixture of the superabsorbent polymer fines and monomer to form the aqueous fluid absorbent polymer. In the process, the fines are incorporated into the new polymer gel and become indistinguishable there from. The gel may then be comminuted into a particulate dried and then separated into a portion having a desired minimum particle size in a fines portion having less than the desired size. The particulate may then be coated with a surface crosslinking agent and surface additives and heated for surface conversion.

    PARTICULATE SUPERABSORBENT POLYMER HAVING A CAPACITY INCREASE
    4.
    发明公开
    PARTICULATE SUPERABSORBENT POLYMER HAVING A CAPACITY INCREASE 有权
    粒子状，超吸收性聚合物，具有容量增加

    公开(公告)号：EP2566901A1

    公开(公告)日：2013-03-13

    申请号：EP11719935

    申请日：2011-04-29

    申请人： EVONIK STOCKHAUSEN LLC

    发明人： TIAN GONGLU ,  BERGMAN DAVID L JR ,  SHI YARU

    IPC分类号： C08F230/08 ,  A61F13/15 ,  C08F220/06

    CPC分类号： A61L15/26 ,  B01J20/26 ,  C08F220/06 ,  C08F230/08 ,  Y10T428/249991

    摘要： The present invention relates to a particulate superabsorbent polymer comprising a monomer and an internal crosslinker agent wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2 g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising an internal crosslinker agent comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si—O bond. The present invention further relates to an absorbent article that includes such particulate superabsorbent polymers.

    SUPERABSORBENT POLYMER CONTAINING CLAY, PARTICULATE, AND METHOD OF MAKING SAME
    5.
    发明公开
    SUPERABSORBENT POLYMER CONTAINING CLAY, PARTICULATE, AND METHOD OF MAKING SAME 有权
    SUPERSAUGFÄHIGESPOLYMER MIT TON，SCHWEBSTOFFTEILCHEN UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2334344A1

    公开(公告)日：2011-06-22

    申请号：EP09736904.5

    申请日：2009-10-13

    申请人： Evonik Stockhausen, LLC

    发明人： AZAD, Michael M. ,  SMITH, Scott J. ,  JOY, Mark ,  BLAKE, Geoffrey Wyatt ,  JARMAN, Michael S.

    IPC分类号： A61L15/60 ,  C08J3/075 ,  C08J3/12 ,  C08J3/21 ,  C08K3/34 ,  C08L101/14 ,  C08L33/06

    CPC分类号： A61L15/60 ,  A61F13/53 ,  A61L15/18 ,  A61L15/24 ,  A61L15/46 ,  C08J3/12 ,  C08J3/128 ,  C08J2300/14 ,  Y10T428/2982

    摘要： A process for the preparation of superabsorbent polymer containing clay, the process including the steps of (I) polymerizing a polymerization mixture comprising: (a) one or more ethylenically unsaturated carboxyl-containing monomers, (b) one or more crosslinking agents, (c) optionally one or more comonomers copolymerizable with the carboxyl-containing monomer, (d) neutralizing agent to partially neutralize the polymer to from about 50% to about 99%, by weight, and (e) a polymerization medium, to form a crosslinked partially neutralized hydrogel, (II) admixing a clay with the crosslinked partially neutralized hydrogel to form partially neutralized superabsorbent polymer-clay hydrogel; (III) drying the crosslinked partially neutralized hydrogel at a temperature from about 190° C. to about 210° C. and for a time period of from about 15 minutes to about 120 minutes, and (IV) comminuting the dried partially neutralized superabsorbent polymer-clay hydrogel to particles.

    摘要翻译： 一种制备含有粘土的超吸收性聚合物的方法，该方法包括以下步骤：（I）聚合混合物，其包含：（a）一种或多种烯属不饱和羧酸单体，（b）一种或多种交联剂，（c ）任选的一种或多种可与含羧基单体共聚的共聚单体，（d）中和剂将聚合物部分中和至约50％至约99％（重量），和（e）聚合介质，以形成部分交联 中和的水凝胶，（II）将粘土与交联的部分中和的水凝胶混合以形成部分中和的超吸收聚合物 - 粘土水凝胶; （III）在约190℃至约210℃的温度下干燥交联的部分中和的水凝胶，并且持续约15分钟至约120分钟的时间段，和（IV）粉碎干燥的部分中和的超吸收聚合物 将水凝胶粘贴到颗粒上。

    WATER-ABSORBING POLYSACCHARIDE AND METHOD FOR PRODUCING THE SAME
    6.
    发明公开
    WATER-ABSORBING POLYSACCHARIDE AND METHOD FOR PRODUCING THE SAME 有权
    WERSERABSORBIERENDES POLYSACCHARID UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2350133A1

    公开(公告)日：2011-08-03

    申请号：EP09744133.1

    申请日：2009-10-28

    申请人： Evonik Stockhausen, LLC

    发明人： TIAN, Gonglu ,  YANG, Xinyuan ,  SMITH, Scott J.

    IPC分类号： C08B15/00 ,  C08L1/28 ,  C08J3/24

    CPC分类号： B01J20/28016 ,  B01J20/3212 ,  C08B15/005 ,  C08J3/075 ,  C08J3/245 ,  C08L1/286

    摘要： A process for producing a polysaccharide superabsorbent particulate including the process steps of bringing into contact a polysaccharide with a polyphosphate or a polyphosphoric acid as crosslinking agent in the presence of water to form a polysaccharide gel drying the polysaccharide gel, comminuting the dried polysaccharide gel to form polysaccharide superabsorbent polymer particles, coating the particles with a polyphosphate or polyphosphoric acid, crosslinking the coated particles, and surface treating the particulate with a metal multivalent salt or an acid. The invention further relates to a polysaccharide superabsorbent polymer particulate obtainable by this process, a water-absorbent polysaccharide, a composite, a process for producing a composite, a composite produced by this process, the use of the polysaccharide superabsorbent particulates or of the composites as well as the use of polyphosphates.

    摘要翻译： 一种多糖超吸收性粒子的制造方法，包括使多糖与多磷酸或多磷酸作为交联剂在水存在下接触的方法，以形成干燥多糖凝胶的多糖凝胶，粉碎干燥的多糖凝胶形成 多糖超吸收聚合物颗粒，用多磷酸盐或多磷酸涂覆颗粒，交联涂覆的颗粒，并用金属多价盐或酸表面处理颗粒。 本发明还涉及通过该方法获得的多糖超吸收性聚合物颗粒，吸水多糖，复合材料，复合材料的制备方法，通过该方法制备的复合材料，多糖超吸收性颗粒或复合材料的用途为 以及使用多磷酸盐。

    ABSORBENT MATERIALS AND ARTICLES
    7.
    发明授权
    ABSORBENT MATERIALS AND ARTICLES 有权
    吸收材料和物品

    公开(公告)号：EP1654014B1

    公开(公告)日：2010-12-29

    申请号：EP04801842.8

    申请日：2004-04-02

    申请人： Evonik Stockhausen, LLC

    发明人： QIN, Jian ,  ZHANG, Xiaomin ,  MILLER, Debra, Ann

    IPC分类号： A61L15/60

    CPC分类号： A61L15/60 ,  Y10S522/909

    摘要： An absorbent material formed at least in part of a cross-linked polymer. The absorbent material has a centrifuge retention capacity as determined by a Centrifuge Retention Capacity Test of at least about 20 g/g and a gel bed permeability under load as determined by a Gel Bed Permeability Under Load Test of at least about 200x10-9 cm2 or a free swell gel bed permeability as determined by a Free Swell Gel Bed Permeability Test of at least about 2,500x10-9 cm2. The cross-linked polymer may comprise either at least about 75 weight percent anionic polymer or at least about 75 weight percent cationic polymer. In one embodiment, the cross-linked polymer is surface treated with a water soluble non-cross-linked polymer having a potential for becoming charged opposite that of the cross-linked polymer.