利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

145 条记录 (耗时 0.029 秒)

    Process for the preparation of silicon-dioxide-containing polymer beads
    72.
    发明申请
    Process for the preparation of silicon-dioxide-containing polymer beads 审中-公开
    制备含二氧化硅的聚合物珠粒的方法

    公开(公告)号：US20050245664A1

    公开(公告)日：2005-11-03

    申请号：US11108962

    申请日：2005-04-19

    申请人： Wolfgang Podszun ,  Reinhold Klipper ,  Rudolf Wagner

    发明人： Wolfgang Podszun ,  Reinhold Klipper ,  Rudolf Wagner

    IPC分类号： C08F112/08 ,  C08F212/08 ,  C08F212/36 ,  B29C71/02 ,  C08K3/34

    CPC分类号： C08F112/08 ,  C08F2/10 ,  C08F2/44

    摘要： The present invention relates to a process for the preparation of silicon-dioxide-containing polymer beads by producing a mixture of styrene, crosslinker, finely divided surface-modified silicon dioxide, free-radical initiator and, if appropriate, inert agent and curing the resultant mixture in aqueous phase at elevated temperature to give a polymer bead, the silicon-dioxide-containing polymer beads themselves, and also uses thereof.

    摘要翻译： 本发明涉及通过制备苯乙烯，交联剂，细分散的表面改性二氧化硅，自由基引发剂和（如果合适的话）惰性剂的混合物制备含二氧化硅的聚合物珠粒的方法，并固化所得物 在高温下在水相中混合，得到聚合物珠粒，含二氧化硅的聚合物珠粒本身，以及其用途。

    Production of monodisperse spherical polymers using seed polymers with a comb structure
    76.
    发明授权
    Production of monodisperse spherical polymers using seed polymers with a comb structure 有权
    使用具有梳结构的种子聚合物生产单分散球形聚合物

    公开(公告)号：US06291553B1

    公开(公告)日：2001-09-18

    申请号：US09419413

    申请日：1999-10-15

    申请人： David Bryan Harrison ,  Wolfgang Podszun ,  Frank Louwet

    发明人： David Bryan Harrison ,  Wolfgang Podszun ,  Frank Louwet

    IPC分类号： C08F29100

    CPC分类号： C08F291/00 ,  B29C64/00 ,  B29C67/04 ,  B41M5/5254 ,  C08F265/04 ,  G02F1/13392

    摘要： Producing spherical polymers having a weight-averaged average particle diameter of 1 to 50 &mgr;m using a seed/feed process comprising the following steps: a) suspension of a monodisperse spherical seed in an aqueous phase, b) addition of at least one monomer and an initiator, c) polymerization of the monomer, of which there is at least one, wherein the seed consists of a polymer having a comb structure, gives rise to products having a particularly narrow grain size distribution.

    摘要翻译： 使用种子/进料方法生产重均粒径为1-50μm的球形聚合物，其包括以下步骤：a）将单分散球形种子悬浮于水相中，b）加入至少一种单体和 引发剂，c）其中存在至少一种的单体的聚合，其中种子由具有梳结构的聚合物组成，产生具有特别窄的粒度分布的产物。

    Process for the preparation of microencapsulated polymers
    77.
    发明授权
    Process for the preparation of microencapsulated polymers 失效
    微囊化聚合物的制备方法

    公开(公告)号：US06251314B1

    公开(公告)日：2001-06-26

    申请号：US09326745

    申请日：1999-06-04

    申请人： Olaf Halle ,  Werner Strüver ,  David Bryan Harrison ,  Wolfgang Podszun

    发明人： Olaf Halle ,  Werner Strüver ,  David Bryan Harrison ,  Wolfgang Podszun

    IPC分类号： B01J1302

    CPC分类号： C08F2/18

    摘要： The present invention relates to a process for the preparation of microencapsulated polymers having a high surface smoothness, a soluble fraction of less than 6%, and a swelling index of between 1.3 and 9 by polymerizing a microencapsulated monomer mixture suspended in an aqueous phase containing at least one hydroxyaromatic compound as polymerization inhibitor, wherein the microencapsulated monomer mixture contains (a) 34 to 99.7% by weight of a monomer having one polymerizable C═C double bond, (b) 0.1 to 15% by weight of a crosslinking agent having at least 2 polymerizable C═C double bonds, (c) 0.2 to 1.0% by weight of at least one aliphatic peroxyester as polymerization initiator, and (d) 0 to 50% by weight of additives, the percentages being based on the sum of the components (a) to (c).

    摘要翻译： 本发明涉及一种制备具有高表面平滑度，可溶性分数小于6％，溶胀指数在1.3和9之间的微囊化聚合物的方法，该方法是将悬浮在含有 至少一种羟基芳族化合物作为聚合抑制剂，其中所述微胶囊化单体混合物含有（a）34-99.7重量％的具有一个可聚合C = C双键的单体，（b）0.1-15重量％的交联剂，其具有 至少2个可聚合的C = C双键，（c）0.2-1.0重量％的至少一种脂族过氧酯作为聚合引发剂，和（d）0-50重量％的添加剂，百分比基于 组分（a）至（c）。