| 摘要 |
<p>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.</p> |
