Absorbent composites exhibiting swelling/deswelling properties
    2.
    发明授权
    Absorbent composites exhibiting swelling/deswelling properties 失效
    吸收性复合材料具有溶胀/消泡性能

    公开(公告)号:US06696618B2

    公开(公告)日:2004-02-24

    申请号:US10015936

    申请日:2001-12-12

    IPC分类号: A61F1315

    摘要: This invention relates to an absorbent composite which utilizes multifunctional superabsorbent materials to enhance distribution of fluids within the absorbent composite. More specifically, this invention relates to superabsorbent materials which swell and absorb fluids and also can deswell and release fluids into the surrounding absorbent composite and towards additional superabsorbent material. The superabsorbent materials of this invention deswell and release fluid by means of a triggering mechanism. Triggering mechanisms can include thermal, chemical, mechanical, electronic, magnetic, and radiation energies. Swelling and deswelling of the superabsorbent materials can be repeated for more than one cycle thereby improving fluid distribution. Multiple swelling and deswelling cycles allow multiple insults to be distributed throughout an absorbent composite, fully utilizing the absorbent capabilities of the full absorbent composite and minimizing leakage.

    摘要翻译: 本发明涉及一种利用多功能超吸收材料来增强吸收复合材料内流体分布的吸收复合材料。 更具体地,本发明涉及膨胀和吸收流体的超吸收材料,并且还可以将流体溶解并释放到周围的吸收性复合材料中并且朝向另外的超吸收材料释放。 本发明的超吸收材料通过触发机构去除和释放流体。 触发机制可以包括热,化学,机械,电子,磁和辐射能。 超吸收材料的溶胀和溶解可重复多于一个循环,从而改善流体分布。 多个溶胀和消泡循环允许多个侮辱分布在整个吸收性复合材料中,充分利用全吸收性复合材料的吸收能力和最小化渗漏。

    High stiffness absorbent polymers having improved absorbency rates and method for making the same
    3.
    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

    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。

    Layered absorbent structure
    6.
    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

    IPC分类号: B32B2712

    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。

    Heterogeneous surge material for absorbent articles
    8.
    发明授权
    Heterogeneous surge material for absorbent articles 失效
    用于吸收制品的异质浪涌材料

    公开(公告)号:US5820973A

    公开(公告)日:1998-10-13

    申请号:US754417

    申请日:1996-11-22

    IPC分类号: A61F13/15 B32B7/02

    摘要: There is provided a surge material for personal care products comprising a layered structure of at least one relatively high permeability layer on a top side toward a wearer and at least one relatively low permeability layer where the structure has a capillary tension range between about 1 and 5 cm with a differential capillary tension of at least about 1 cm from top to bottom. The surge material should have a high permeability layer with a permeability of at least 1000 Darcys and a low permeability layer with a permeability of less than 1000 Darcys. The surge material should also have a said high permeability layer which has a permeability of at least 250 Darcys greater than the low permeability layer. Such a layered structure should have a first insult run-off value of at most 30 ml from a 100 ml insult delivered at 20 ml/second. Such a surge material is useful in personal care products like diapers, training pants, absorbent underpants, adult incontinence products, feminine hygiene products and the like.

    摘要翻译: 提供了一种用于个人护理产品的浪涌材料,其包括在顶部朝向穿着者的至少一个相对高的渗透性层的层状结构和至少一个相对低的渗​​透性层,其中该结构的毛细管张力范围为约1至5 厘米,差异毛细血管张力从上到下至少约1厘米。 浪涌材料应具有渗透率至少为1000达西的高渗透性层和渗透率小于1000达西的低渗透性层。 浪涌材料还应该具有所述高透磁性层,其具有比低透过性层大至少250达西的渗透性。 这种层状结构应该具有从以20ml /秒递送的100毫升侮辱性最多30毫升的第一侮辱径流值。 这种浪涌材料可用于诸如尿布,训练裤,吸收性内裤,成人失禁产品,女性卫生用品等的个人护理产品。