Absorptive material
    9.
    发明授权
    Absorptive material 失效
    吸收材料

    公开(公告)号:US4666975A

    公开(公告)日:1987-05-19

    申请号:US707718

    申请日:1985-03-04

    CPC分类号: A61L15/60

    摘要: A polymer in the form of particles is water-insoluble and water-sellable, containing carboxyl or carboxylate groups. It has a physiological saline absorption quantity of 40 to 90 grams per one gram of the polymer, a physiological saline absorption rate of at least 8 ml per 0.3 gram of the polymer, a gel strength of 33 to 200 g/cm2 when it has been swollen to saturation with ion-exchange water. It is useful as an absorbent in a sanitary article.

    摘要翻译: 颗粒形式的聚合物是水不溶性和可水溶性的,含有羧基或羧酸酯基团。 每1g聚合物具有40至90克的生理盐水吸收量,每0.3克聚合物的生理盐水吸收速率至少为8毫升,凝胶强度为33至200克/平方厘米 用离子交换水溶胀至饱和。 它作为卫生用品中的吸收剂是有用的。

    Process for producing highly water absorptive polymer
    10.
    发明授权
    Process for producing highly water absorptive polymer 失效
    生产高吸水性聚合物的方法

    公开(公告)号:US4497930A

    公开(公告)日:1985-02-05

    申请号:US527134

    申请日:1983-08-26

    摘要: A highly water absorbent polymer having high resistance to salt solution is prepared by crosslinking a hyrophilic polymer or copolymer having carboxyl and/or carboxylate groups and water content of 10 to 40 wt. % with a crosslinking agent having at least two functional groups capable of reaction with said carboxyl and carboxylate group. An improved hydrophilic polymer is produced by polymerizing a monomer with a persulfate and a hydroperoxide as combined initiators. Another improved hydrophilic polymer is prepared by polymerizing a monomer with a persulfate and adding a hydroperoxide to the resulting polymer.

    摘要翻译: 通过交联具有羧基和/或羧酸酯基团的亲水性聚合物或共聚物,水含量为10〜40重量%,可制备高耐盐性溶液的高吸水性聚合物。 %的交联剂具有至少两个能够与所述羧基和羧酸酯基反应的官能团。 通过将单体与过硫酸盐和氢过氧化物作为组合的引发剂聚合来制备改进的亲水聚合物。 通过使单体与过硫酸盐聚合并向所得聚合物中加入氢过氧化物来制备另一种改进的亲水聚合物。