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    Absorbent composite structure and method of making the same
    1.
    发明公开
    Absorbent composite structure and method of making the same 失效
    SaugfähigesVerbundmaterial und Verfahren zu seiner Herstellung

    公开(公告)号：EP0700672A1

    公开(公告)日：1996-03-13

    申请号：EP94114176.4

    申请日：1994-09-09

    Applicant: THE PROCTER & GAMBLE COMPANY

    Inventor： Plischke, Manfred Dr. ,  Schmidt, Mattias, Dr. ,  Rezai, Ebrahim, Famille Grand Okamoto No.202

    IPC: A61F13/15

    CPC classification number: A61F13/535 ,  A61F13/15203 ,  A61F2013/15373 ,  A61F2013/53051 ,  A61F2013/53054 ,  A61F2013/530554 ,  A61F2013/530576 ,  A61F2013/530598 ,  A61F2013/5307 ,  A61F2013/530766 ,  A61F2013/53791

    Abstract: The invention relates to an absorbent composite structure comprising a substrate having an upper and a lower surface and a plurality of hydrogel-forming polymer particles chemically bonded to at least one surface of the substrate (3), wherein the polymer particles (2) each comprise a plurality of cross-linked molecules (13=18). The substrate and the hydrogel-forming polymer particles are connected by a crosslinking agent capable of crosslinking the molecules of the particles. For at least a part of the structure the degree of inter particle cross-linking between the particles is sufficiently low that no inter-particle crosslinked macrostructures are formed of circumscribed dry volume larger than 10mm³.
    In this manner the particles are firmly attached to the substrate in both the dry and wet state, without negatively affecting the substrate's flexibility and while maintaining a desired permeability of the composite structure. The firm attachment of the particles to the substrate allows subjecting the substrate to a physical deformations, for instance to impart extensibility thereto, without the particles becoming detached.

    Abstract translation: 本发明涉及一种吸收复合结构，其包括具有上表面和下表面的基底和与基底（3）的至少一个表面化学键合的多个水凝胶形成聚合物颗粒，其中聚合物颗粒（2）各自包含 多个交联分子（13 = 18）。 底物和形成水凝胶的聚合物颗粒通过能够交联颗粒分子的交联剂连接。 对于结构的至少一部分，颗粒之间的颗粒间交联程度足够低，使得不具有大于10mm 3的外部干燥体积形成颗粒间交联的宏观结构。 以这种方式，颗粒在干燥和潮湿状态下牢固地附着到基底上，而不会不利地影响基底的柔性并且同时保持复合结构的期望的渗透性。 将颗粒牢固地附着在基材上，使基材经受物理变形，例如赋予其延展性，而不会使颗粒脱落。

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