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    Process for preparing stable, finely divided polymer dispersions
    7.
    发明授权
    Process for preparing stable, finely divided polymer dispersions 失效
    制备稳定，细分散的聚合物分散体的方法

    公开(公告)号：US6103786A

    公开(公告)日：2000-08-15

    申请号：US28941

    申请日：1998-02-24

    申请人： Martin Hoch ,  Rainer Elbert ,  Bernd Klinksiek

    发明人： Martin Hoch ,  Rainer Elbert ,  Bernd Klinksiek

    IPC分类号： C08J3/09 ,  C08J3/03 ,  C08J3/07 ,  C08J3/00 ,  C07C41/40 ,  C08F2/32

    CPC分类号： C08J3/07 ,  Y10S516/925 ,  Y10S526/932

    摘要： Stable polymer dispersions with polymer particle sizes of 0.1 to 10 .mu.m are prepared by dissolving a water-in-oil emulsion, comprising a polymer dissolved in an organic solvent which is immiscible with water (organic phase) and an aqueous phase, wherein the viscosity of the organic phase is 1.0 to 20,000 mPas (measured at 25.degree. C.), the surface tension between organic and aqueous phase is 0.01 to 30 mN/m, the particle size of the water emulsified in the organic phase is 0.2 to 50 .mu.m and the ratio by volume of organic phase to aqueous phase is in the range 80:20 to 20:80, subjecting this emulsion to a shear process at a shear power of 1.times.10.sup.3 to 1.times.10.sup.8 Watts per cm.sup.3, wherein the water-in-oil emulsion is converted into an oil-in-water emulsion.

    摘要翻译： 通过将包含溶解在与水（有机相）和水相不混溶的有机溶剂中的聚合物的油包水乳液溶解在一起，制备聚合物粒径为0.1-10μm的稳定的聚合物分散体，其中粘度 有机相的含量为1.0〜20,000mPas（25℃测定），有机相和水相的表面张力为0.01〜30mN / m，有机相中乳化的水的粒径为0.2〜50μm m，并且有机相与水相的体积比在80:20至20:80的范围内，以1×10 3至1×10 8瓦/ cm 3的剪切力使该乳液经受剪切过程，其中油包水 将乳液转化成水包油乳液。