Absorbent polymer structure with improved retention capacity and permeability
    92.
    发明申请
    Absorbent polymer structure with improved retention capacity and permeability 有权
    具有改善保留能力和渗透性的吸收性聚合物结构

    公开(公告)号:US20060029782A1

    公开(公告)日:2006-02-09

    申请号:US10532280

    申请日:2003-10-24

    IPC分类号: B32B7/02

    摘要: A process for producing an absorbent polymer structure (Pa) by treating the outer portion of an untreated absorbent polymer structure (Pu1). The process includes the step of bringing the outer portion of the untreated absorbent polymer structure (Pu1) into contact with an aqueous solution including at least one chemical cross-linker and at least one inorganic compound in dispersed colloidal form. The process also includes the step of heating the absorbent polymer structure, of which the outer portion has been brought into contact with the aqueous solution, at a temperature within a range from about 40 to about 300° C., so that the outer portion of the absorbent polymer structure is more strongly cross-linked in comparison to the inner portion and the inorganic compound is at least partly immobilized in the outer portion of the absorbent polymer structure.

    摘要翻译: 通过处理未处理的吸收性聚合物结构(Pu1)的外部来制造吸收性聚合物结构(Pa)的方法。 该方法包括使未处理的吸收性聚合物结构(Pu1)的外部部分与包含至少一种化学交联剂和至少一种分散的胶体形式的无机化合物的水溶液接触的步骤。 该方法还包括在约40至约300℃的温度范围内加热其外部已经与水溶液接触的吸收性聚合物结构的步骤,使得外部部分 与内部部分相比,吸收性聚合物结构更强烈地交联,并且无机化合物至少部分地固定在吸收性聚合物结构体的外部。