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    Patents

    Composite Material for Absorbent Article, and Method for Manufacturing Thereof:

    U.S. Patent No. 9,603,756

    05.31.17
    Akihiro Kimura, Kanonji, Japan; Hiroyuki Muto, Toyohashi, Japan; Norio Hakiri, Toyohashi, Japan; Hideyo Yoshikawa, Toyohashi, Japan; Atsunori Matsuda, Toyohashi, Japan; and Go Kawamura, Toyohashi, Japan.
    Assigned to Unicharm Corporation, Ehime, Japan.

    Filed: 11/4/14
    Issued: 3/28/17

    A composite material for an absorbent article, comprising a substrate material having a surface which is positively or negatively electrostatically charged in a predetermined solvent selected from a non-polar organic solvent, a polar organic solvent, and a mixed solvent of a polar organic solvent and water, and a water absorbent material adsorbed thereon by electrostatic interaction, having a surface which is electrostatically charged to an electric charge opposite to that of the surface of the substrate material, wherein the substrate material comprises a fibrous base material or resinous base material and a polyelectrolyte layer provided in a surface layer thereof, and/or, the water absorbent material has a water absorbent particulate base material or water absorbent fibrous base material and a polyelectrolyte layer provided in a surface layer thereof.
    Related Searches
    • manufacturing
    • absorbent
    • Unicharm
    • japan
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    Related Patents

    • Absorbent Article Having a Fastening System:

      U.S. Patent No. 9,615,980
      05.31.17

    • Diapers Having a Zoned Non-Attachable Back Sheet and Methods of Manufacturing the Same:

      U.S. Patent No. 9,615,979
      05.31.17

    • Open-Type Disposable Diaper with Crotch Stretch Unit:

      U.S. Patent No. 9,592,164
      05.04.17


    • Method and Apparatus for Changing the Orientation of an Absorbent Article:

      U.S. Patent No. 9,572,723
      03.27.17

    • Disposable Diaper:

      U.S. Patent No. 9,566,199
      03.27.17

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