Process for imparting water-and oil-repellent emulsion finish for cellulosic materials
    4.
    发明授权
    Process for imparting water-and oil-repellent emulsion finish for cellulosic materials 失效
    用于改进水性和油性乳液表面处理的细胞材料

    公开(公告)号:US3655435A

    公开(公告)日:1972-04-11

    申请号:US3655435D

    申请日:1969-05-27

    申请人: US AGRICULTURE

    摘要: A process is described for preparing a stable aqueous emulsion of a polymer derived from an alkyl perfluoralkanoate and an alkylenimine, employing 2.5-10 percent (based on total solvent weight) of a water-miscible polymer solvent, and special emulsifiers. When fibrous cellulosic materials are treated with such emulsions using about from 1 to about 10 weight percent (based on the total emulsion weight) of the fluorinated ester, the resultant treated materials are rendered durably oleophobic and slightly hydrophobic. These desirable properties may be imparted by a simple drying step without resorting to a high temperature cure step.

    摘要翻译: 描述了一种制备稳定的由全氟烷基烷烃烷基酯和亚烷基亚胺衍生的聚合物的水性乳液的方法,其采用水混溶性聚合物溶剂为2.5-10%(基于总溶剂重量)和特殊乳化剂。