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    Layered absorbent structure
    3.
    发明授权
    Layered absorbent structure 有权
    分层吸收结构

    公开(公告)号：US06383960B1

    公开(公告)日：2002-05-07

    申请号：US09519045

    申请日：2000-03-03

    申请人： Rob David Everett ,  Thomas Gerald Bolwerk ,  Richard Norris Dodge, II ,  Violet May Grube ,  Yong Li ,  Debra Jean McDowall ,  Shannon Kathleen Melius ,  Lawrence Howell Sawyer ,  David Louis Zenker ,  Xiaomin Zhang ,  Sylvia Bandy Little ,  Billie Jean Matthews ,  Sridhar Ranganathan ,  Stanley Michael Gryskiewicz ,  Kuo-Shu Edward Chang

    发明人： Rob David Everett ,  Thomas Gerald Bolwerk ,  Richard Norris Dodge, II ,  Violet May Grube ,  Yong Li ,  Debra Jean McDowall ,  Shannon Kathleen Melius ,  Lawrence Howell Sawyer ,  David Louis Zenker ,  Xiaomin Zhang ,  Sylvia Bandy Little ,  Billie Jean Matthews ,  Sridhar Ranganathan ,  Stanley Michael Gryskiewicz ,  Kuo-Shu Edward Chang

    IPC分类号： B32B2712

    CPC分类号： A61F13/535 ,  A61F2013/530481 ,  A61F2013/5355 ,  Y10T442/481 ,  Y10T442/659 ,  Y10T442/668 ,  Y10T442/674 ,  Y10T442/693 ,  Y10T442/695

    摘要： A distinctive absorbent article includes an absorbent core having multiple absorbent layers, wherein the absorbent layers interact in such a manner which preferentially locates absorbed liquid in an appointed, high saturation wicking layer. The localization of the liquid within this wicking layer increases the potential of this layer to move liquid through capillary action due to the higher saturation level and increased amount of liquid available. The intake capability of the absorbent system is maintained or improved over current systems by keeping a second layer of the absorbent system at low saturation levels through as many insults of the product as possible, while providing optimum intake performance through appropriate control of the composite properties. The low saturation in this layer provides void volume for the incoming insult as well, as a high permeability, thus increasing the intake rate of the absorbent system as a whole, but the structure of the low saturation layer is also balanced to provide an appropriately high level of capillary tension to provide enough control of the liquid to stop leakage from occurring. This low saturation layer is used in addition to a surge material and provides intake functionality in addition to that provided by the surge material. In particular aspects of the invention, the body side layer of the absorbent core does not extend over the entire surface of the overall absorbent core, therefore is not used as the high saturation, wicking layer, but as the intake layer. This arrangement also allows the intake layer to be in direct contact with the incoming liquid, therefore allowing for more immediate access and improved intake function.

    摘要翻译： 独特的吸收制品包括具有多个吸收层的吸收芯，其中吸收层以这样的方式相互作用，其优先将吸收的液体定位在指定的高饱和芯吸层中。 液体在该芯吸层内的定位增加了该层由于较高的饱和水平和可用的液体量的增加而使液体通过毛细作用移动的潜力。 吸收系统的吸入能力通过目前的系统维持或改善，通过尽可能多的产品损伤将吸收体系的第二层保持在低饱和度水平，同时通过适当地控制复合材料特性来提供最佳的进气性能。 该层中的低饱和度也为进入的侮辱提供空隙体积，作为高渗透性，从而增加吸收系统整体的吸入速率，但是低饱和层的结构也是平衡的，以提供适当高的 毛细血管张力水平提供足够的液体控制以阻止发生渗漏。 除了浪涌材料之外，还使用这种低饱和层，除了由浪涌材料提供的外，还提供吸入功能。 在本发明的特定方面，吸收芯的身体侧层不延伸在整个吸收芯的整个表面上，因此不用作高饱和度芯吸层，而是用作吸入层。 这种布置还允许进气层与进入的液体直接接触，因此允许更快速的进入和改进的进气功能。

    High stiffness absorbent polymers having improved absorbency rates and method for making the same
    7.
    发明授权
    High stiffness absorbent polymers having improved absorbency rates and method for making the same 失效
    具有改善的吸收率的高刚性吸收性聚合物及其制造方法

    公开(公告)号：US06939914B2

    公开(公告)日：2005-09-06

    申请号：US10291237

    申请日：2002-11-08

    申请人： Jian Qin ,  Richard Norris Dodge, II ,  Sridhar Ranganathan ,  Cathleen M. Uttecht ,  Xiaomin Zhang

    发明人： Jian Qin ,  Richard Norris Dodge, II ,  Sridhar Ranganathan ,  Cathleen M. Uttecht ,  Xiaomin Zhang

    IPC分类号： A61F13/15 ,  A61L15/60 ,  C08J3/12 ,  C08F2/16

    CPC分类号： C08J3/12 ,  A61F2013/530569 ,  A61F2013/530729 ,  A61L15/60 ,  C08J2300/14

    摘要： Superabsorbent polymer materials are provided including absorbent polymers having a fast vortex time, desirably about 10 seconds or less, and a stiffness index of at least about 0.7, as determined by test procedures described herein. The absorbent polymers can be modified to obtain a faster vortex time by a method including providing an absorbent polymer having a first vortex time, absorbing water with the absorbent polymer, freeze-drying the swollen absorbent polymer to remove at least a portion of the absorbed water, and obtaining a modified absorbent polymer having a second vortex time. The ratio of the first vortex time to the second vortex time is at least about 5, and desirably the modified absorbent polymer has a stiffness index of at least about 0.7.

    摘要翻译： 提供超吸收性聚合物材料，其包括通过本文所述的测试程序测定的具有快速涡旋时间，优选约10秒或更短的刚性指数至少约0.7的吸收性聚合物。 吸收性聚合物可以通过包括提供具有第一涡旋时间的吸收性聚合物，吸收性聚合物吸收水，将溶胀的吸收性聚合物冷冻干燥以除去至少一部分吸收的水的方法进行改性以获得更快的涡流时间 得到具有第二涡流时间的改性吸收性聚合物。 第一涡流时间与第二涡流时间的比率为至少约5，并且理想地，改性吸收性聚合物的刚度指数为至少约0.7。

    Absorbent materials having improved absorbent properties
    8.
    发明授权
    Absorbent materials having improved absorbent properties 有权
    具有改善的吸收性能的吸收材料

    公开(公告)号：US06706944B2

    公开(公告)日：2004-03-16

    申请号：US10017465

    申请日：2001-12-14

    申请人： Jian Qin ,  Xiaomin Zhang ,  Sridhar Ranganathan ,  Yong Li

    发明人： Jian Qin ,  Xiaomin Zhang ,  Sridhar Ranganathan ,  Yong Li

    IPC分类号： A61F1315

    CPC分类号： A61F13/531 ,  A61F13/15626 ,  A61L15/425 ,  A61L15/60 ,  B29C67/202 ,  Y10T428/24405

    摘要： An absorbent fibrous foam composite comprising a fluid intake capacity of at least 15 g/g, a vertical wicking distance of at least 10 cm, and an absorbency under zero load of at least 15 g/g. The absorbent fibrous foam composite comprising a water insoluble fibrous material and a superabsorbent material. The absorbent fibrous foam composite made by forming a slurry of water, a water-insoluble fiber, and a binding agent. A water-swellable, water-insoluble superabsorbent material is added to the slurry and the temperature is lowered until the water freezes. The frozen water is then removed by sublimation process and an absorbent fibrous foam recovered. The Gelation Time, which represents a fluid absorption rate of superabsorbent during the preparation, is critical to preparing uniform absorbent freeze-dried foams and can be adjusted by various mixing conditions and physical and chemical superabsorbent treatments.

    摘要翻译： 一种吸收性纤维泡沫复合材料，其包含至少15g / g的流体吸入容量，至少10cm的垂直芯吸距离和至少15g / g的零载荷下的吸收性。 吸水纤维泡沫复合材料包含水不溶性纤维材料和超吸收材料。 通过形成水，水不溶性纤维和粘合剂的浆料制成的吸收性纤维状泡沫复合体。 将水溶胀性水不溶性超吸收材料加入到浆料中，并降低温度直到水冻结。 然后通过升华过程除去冷冻水并回收吸收性纤维状泡沫。 表示制备过程中超吸收剂的液体吸收速率的凝胶时间对于制备均匀的吸收性冻干泡沫是至关重要的，并且可以通过各种混合条件和物理和化学超吸收剂处理来调节。