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    • 32. 发明授权
    • Method for forming an apertured web
    • 用于形成多孔网的方法
    • US06551436B1
    • 2003-04-22
    • US09806889
    • 2001-04-05
    • Andreas FlohrGeorg Pescher
    • Andreas FlohrGeorg Pescher
    • D06C2700
    • A61F13/15731B26F1/24Y10T156/1054Y10T156/1056Y10T156/1057Y10T156/1084Y10T156/1085Y10T156/1304Y10T156/1309Y10T156/1313Y10T156/1378Y10T225/30Y10T225/371
    • A method for forming an apertured web which may be used as a topsheet on a disposable absorbent article, such as a diaper. The web (240) is fed in as machine direction through a first nip (250) formed by a pair of rollers one of the rollers having a smooth outer surface and the other roller having an outer surface with a plurality of projections extending from it's outer surface. At least one of the rollers of the first nip (250) is heated. The first nip (250) apertures the web with a plurality of apertures each having a fused perimeter. The web (240) is then cooled to solidify the fused perimeter of the apertures. The web (240) is then fed through a second nip (280) formed by a pair of rollers to break the solidified fused perimeter of the apertures. One of the rollers of the second nip (280) has an outer surface with a plurality of grooves.
    • 用于形成可用作一次性吸收制品(例如尿布)上的顶片的多孔纤维网的方法。 纸幅(240)通过由一对辊形成的第一辊隙(250)沿着机器方向进给,其中一个辊具有光滑的外表面,另一个辊具有外表面,该外表面具有从其外表面延伸的多个突起 表面。 加热第一压区(250)中的至少一个辊。 第一压区(250)利用多个具有熔融周长的孔使幅材开孔。 然后将网(240)冷却以固化孔的熔融周长。 纸幅(240)然后通过由一对辊形成的第二辊隙(280)进给,以破坏孔的凝固的熔融周长。 第二压区(280)的一个辊具有带有多个槽的外表面。
    • 39. 发明授权
    • Superabsorbent polymer particles comprising functionalizers and method of making them
    • 包含官能团的超吸收聚合物颗粒及其制备方法
    • US07655830B2
    • 2010-02-02
    • US11198081
    • 2005-08-05
    • Andreas FlohrTorsten Lindner
    • Andreas FlohrTorsten Lindner
    • A61F13/15
    • C08F265/04C08L51/003Y10T428/249986C08L2666/02
    • The present invention relates to superabsorbent polymer particles having functionalizers covalently bound to the surface of precursor superabsorbent polymer particles.The functionalizers of the present invention comprise a grafting unit with a radiation activatable group and a functional unit covalently bound to the grafting unit. The grafting unit is bound to an aliphatic C—H group comprised at the surface of the precursor superabsorbent polymer particle. The functional unit comprises chemical structures which are not present in the precursor superabsorbent polymer particle. These functional units add an additional function to the precursor suberabsorbent polymer particle or modifying an existing function of the precursor superabsorbent polymer particle.Moreover, the invention relates to a process for making these superabsorbent polymer particles.
    • 本发明涉及具有与前体超吸收性聚合物颗粒的表面共价结合的官能化物的超吸收性聚合物颗粒。 本发明的功能化剂包括具有可辐射活化基团和与接枝单元共价结合的官能单元的接枝单元。 接枝单元与包含在前体超吸收聚合物颗粒表面的脂族C-H基团结合。 功能单元包括不存在于前体超吸收聚合物颗粒中的化学结构。 这些功能单元向前体抗氧化剂聚合物颗粒添加附加功能或改变前体超吸收聚合物颗粒的现有功能。 此外,本发明涉及制备这些超吸收性聚合物颗粒的方法。