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    • 4. 发明申请
    • METHOD OF MANUFACTURING POLYMER PARTICLES OF INDETERMINATE FORM
    • 制备聚合物颗粒的方法
    • WO1994020543A1
    • 1994-09-15
    • PCT/JP1994000295
    • 1994-02-24
    • KAO CORPORATIONMIYANAGA, SeiichiINA, YoshimitsuMINAMI, TakahideAMIYA, Takayuki
    • KAO CORPORATION
    • C08F02/32
    • C08F2/32A61L15/00A61L15/48
    • This invention provides a method of manufacturing polymer particles of indeterminate form, characterized in that a cationic surface active agent or an amphoteric surface active agent is present as a dispersant when a water-soluble polymerizable monomer is polymerized by using an inert hydrophobic organic solvent and an aqueous solution of the water-soluble polymerizable monomer. According to the manufacturing method of the present invention, polymer particles of indeterminate form useful as a water absorbing resin having a low apparent specific gravity, a high water absorption degree including a high initial water absorption rate, a high gas-permeability, a high liquid-permeability and a high post-water-absorption gel strength, and, especially, as a water absorbing resin for the production of an absorption body for a sanitary material contacting a human body, such as a sanitary napkin, a paper diaper, shorts for adults, a tampon and sanitary cotton can be obtained by a simple operation with a high productivity and on a mass-production basis.
    • 本发明提供一种制备不确定形式的聚合物颗粒的方法,其特征在于当通过使用惰性疏水性有机溶剂聚合水溶性可聚合单体时,阳离子表面活性剂或两性表面活性剂作为分散剂存在, 水溶性聚合性单体的水溶液。 根据本发明的制造方法,可以使用作为具有低表观比重的吸水性树脂的不确定形式的聚合物颗粒,包括高初始吸水率,高透气性,高液体的高吸水度 特别是用于生产卫生材料与人体接触的吸收体的吸水树脂,例如卫生巾,纸尿布,短裤等。 成人,棉塞和卫生棉可以通过简单的操作以高生产率和批量生产获得。