公开(公告)号：US08222477B2

公开(公告)日：2012-07-17

申请号：US12254434

申请日：2008-10-20

申请人： Michael M. Azad ,  Scott J. Smith ,  Mark Joy ,  Geoffrey Wyatt Blake ,  Michael S. Jarman

发明人： Michael M. Azad ,  Scott J. Smith ,  Mark Joy ,  Geoffrey Wyatt Blake ,  Michael S. Jarman

IPC分类号： A61F13/15

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聚合物的方法，所述方法包括以下步骤：（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 ）任选地一种或多种可与含羧基单体共聚的共聚单体，（d）中和剂以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。

公开(公告)号：US20100303869A1

公开(公告)日：2010-12-02

申请号：US12675578

申请日：2008-09-12

申请人： Michael M. Azad ,  James C. Robinson ,  Michael Young

发明人： Michael M. Azad ,  James C. Robinson ,  Michael Young

IPC分类号： A61K9/00 ,  A01N31/14 ,  A01P1/00

CPC分类号： A61L15/60 ,  A61L15/46 ,  A61L2300/202 ,  A61L2300/404 ,  A61L2300/606 ,  C08J3/245

摘要： Superabsorbents having a coating of an antimicrobial agent are produced by a process that comprises contacting the superabsorbent with a solution comprising the anti-microbial agent and a polyol concurrently with or immediately after contacting it with the surface-crosslinking agent and prior to the curing step that completes surface crosslinking, and/or contacting the superabsorbent with a solution comprising the anti-microbial agent and polyalkylene glycol of a molecular mass between 200 and 5 000 g/mol after completion of surface crosslinking.

摘要翻译： 具有抗微生物剂涂层的超吸收剂通过包括使超吸收剂与包含抗微生物剂和多元醇的溶液与表面交联剂同时或立即与表面交联剂接触并在固化步骤之前使其接触的方法制备， 在表面交联完成后，完成表面交联和/或使超吸收剂与包含分子量在200至5000g / mol之间的抗微生物剂和聚亚烷基二醇的溶液接触。