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    Breathable, multilayered, clothlike barrier
    6.
    发明授权
    Breathable, multilayered, clothlike barrier 失效
    透气，多层，布状屏障

    公开(公告)号：US4828556A

    公开(公告)日：1989-05-09

    申请号：US925332

    申请日：1986-10-31

    Applicant: Ralph V. Braun ,  Lance Garrett ,  Robert J. Phelan ,  Richard S. Yeo

    Inventor： Ralph V. Braun ,  Lance Garrett ,  Robert J. Phelan ,  Richard S. Yeo

    IPC: A61F13/15 ,  A61L15/24 ,  A61L15/42 ,  B32B5/26 ,  D04H13/00

    CPC classification number: A61F13/51462 ,  A61F13/51405 ,  A61F13/51478 ,  A61L15/24 ,  A61L15/425 ,  B32B27/08 ,  B32B27/12 ,  B32B27/306 ,  B32B5/022 ,  B32B5/22 ,  B32B5/26 ,  A61F2013/51417 ,  A61F2013/51423 ,  A61F2013/51441 ,  A61F2013/51443 ,  B32B2255/02 ,  B32B2262/0223 ,  B32B2262/0253 ,  B32B2307/724 ,  B32B2307/7265 ,  Y10S428/913

    Abstract: A breathable, multilayer, clothlike barrier especially suitable for use as an outer cover or baffle in such disposable absorbent articles as diapers, sanitary napkins, and incontinent pads, which barrier has at least three layers:A. a first layer which is a porous meltblown nonwoven web having a first side and a second side;B. a second layer joined to the first side of the first layer, which second layer is a continuous film of a poly(vinyl alcohol), in which:the film is not microporous in that it is substantially free of voids which connect the two surfaces of the film; andthe film has an average thickness of from about 3 to about 250 microns; andC. a third layer joined to either the second layer or the second side of the first layer, which third layer is a porous nonwoven web;wherein the first layer side of the second layer is intimately comingled with at least some of the fibers of the first side of the first layer, none of the pores at the surface of the first side of the first layer are so large as to significantly adversely affect the barrier properties of the barrier as a consequence of said comingling, and the barrier has a water vapor transmission rate at 37 degrees about fifty percent relative humidity of from about 100 to Celsius and about 5,000 g/m.sup.2 /24 hour and is impermeable to 0.9 percent by weight saline solution at about 21 degrees C. for a period of at least about one hour at a hydrostatic head of at least about 11.4 cm.

    Abstract translation: 一种透气的，多层的布状屏障，特别适用于这种一次性吸收制品中的外罩或挡板，如尿布，卫生巾和失禁垫，该屏障具有至少三层：A.第一层是多孔熔喷 具有第一侧和第二侧的非织造纤维网; B.连接到第一层的第一侧的第二层，该第二层是聚（乙烯醇）的连续膜，其中：该膜不是微孔的，因为它基本上不含连接两个 薄膜表面; 并且该膜的平均厚度为约3至约250微米; C.第三层，其连接到第一层的第二层或第二侧，该第三层是多孔非织造纤维网; 其中第二层的第一层侧与第一层的第一侧的至少一些纤维紧密地接合，第一层的第一侧的表面上的孔隙都不会大到不利地 影响屏障的屏障性能，因为屏障具有37度约50％相对湿度为约100摄氏度至约5,000克/平方米/ 24小时的水汽透过率，并且不透水 在约21℃下的0.9重量％盐水溶液在至少约11.4厘米的静水压头处至少约1小时。

    Membrane, e.g. for use in an ileostomy bag
    7.
    发明授权
    Membrane, e.g. for use in an ileostomy bag 失效
    膜，例如 用于回肠造口袋

    公开(公告)号：US5352316A

    公开(公告)日：1994-10-04

    申请号：US747086

    申请日：1991-08-19

    Applicant: Graham E. Steer

    Inventor： Graham E. Steer

    IPC: A61L26/00 ,  A61F5/441 ,  A61F13/15 ,  B01D19/00 ,  B01D69/10 ,  B01D71/26 ,  B01D71/54 ,  B32B31/00 ,  A61F5/44

    CPC classification number: A61F13/5146 ,  A61F13/51405 ,  A61F13/51476 ,  A61F5/441 ,  A61L28/0011 ,  A61L28/0053 ,  A61L28/0069 ,  B01D19/0031 ,  B01D69/10 ,  A61F2013/51415 ,  A61F2013/51417 ,  A61F2013/51427 ,  A61F2013/51431 ,  A61F2013/51439 ,  Y10T156/1056

    Abstract: A method of making a gas-permeable liquid-impermeable membrane includes the steps of perforating a film of linear low density polyethylene (or other suitable polyolefin) in such a way as to yield an array of holes each having an average diameter of approximately 350, microns and then solution coating the needled film with a porous polyurethane material having pores of a pore size of 1 to 10 microns.Such a film is advantageously embodied in an ileostomy bag, and is fixed to a bag wall thereof in a location to prevent faecal material contacting the bag filter, by a heat or RF welding operation by which the polyolefin is welded to the bag wall which carries the filter. In use, the polyurethane is exposed to the bag contents, and permits gases to pass but prevents any liquid reaching the filter.

    Abstract translation: 制造透气液体不可渗透膜的方法包括以下步骤：使线性低密度聚乙烯（或其它合适的聚烯烃）的膜穿孔，以产生平均直径为约350的孔阵列， 然后用孔径为1至10微米的孔的多孔聚氨酯材料溶液涂布针刺膜。 这种膜有利地体现在回肠造口袋中，并且通过热或RF焊接操作被固定到位于其中以防止粪便物质接触袋式过滤器的位置的位置，通过该操作将聚烯烃焊接到携带有袋的袋壁 过滤器。 在使用中，聚氨酯暴露于袋内容物，并允许气体通过，但防止任何液体到达过滤器。

    Tearable anti-rash diaper construction
    8.
    发明授权
    Tearable anti-rash diaper construction 失效
    可撕式防疹尿布结构

    公开(公告)号：US5137525A

    公开(公告)日：1992-08-11

    申请号：US619396

    申请日：1990-11-29

    Applicant: Jacob A. Glassman

    Inventor： Jacob A. Glassman

    IPC: A61F13/15

    CPC classification number: A61F13/5146 ,  A61F13/51458 ,  A61F13/51484 ,  A61F13/539 ,  A61F13/84 ,  A61F2013/51415 ,  A61F2013/51417 ,  A61F2013/51421 ,  A61F2013/51468 ,  A61F2013/5149

    Abstract: An anti-rash, tearable baby diaper of improved construction is disclosed which includes a layer of absorbent material covered by a layer of an impervious or breathable material which is prepared to allow tearing of the outer layer along lines or curves. The outer layer is substantially unattached to the inner layer or is rupturably unattachable to the outer layer. Upon tearing of the outer layer of material, relatively large yawning gaps or openings are created to allow exposure of the inner absorbent material. The torn areas allow trapped, hot air to escape and the absorbent material to dry, cool, and maintain a reduced temperature in order to prevent "baby diaper rash."

    Abstract translation: 公开了一种改进结构的抗皮疹，可撕裂的婴儿尿布，其包括由不透水或透气材料层覆盖的吸收材料层，其准备允许外层沿线或曲线撕裂。 外层基本上不与内层连接，或者不可剥离地外层。 在撕裂材料的外层时，产生相对大的打呵欠的间隙或开口以允许内部吸收材料暴露。 被撕裂的区域允许被困的热空气逸出，吸收材料干燥，冷却并保持降低的温度，以防止“婴儿尿布疹”。

    Durable and reusable incontinent underpads
    9.
    发明授权
    Durable and reusable incontinent underpads 失效
    耐用且可重复使用的失禁内垫

    公开(公告)号：US5085653A

    公开(公告)日：1992-02-04

    申请号：US625150

    申请日：1990-12-10

    Applicant: Harry Levy

    Inventor： Harry Levy

    IPC: A61F13/15

    CPC classification number: A61F13/49003 ,  A61F2013/51139 ,  A61F2013/51417 ,  A61F2013/51449 ,  A61F2013/53035

    Abstract: The durable and reusable incontinent underpads of the invention are 4-layer fabrics, incorporating a first layer of woven or knit fabric, a second layer of non-woven felt, a third layer of polyurethane film, and a fourth layer of woven or knit fabric. The first and second layers are quilted together--as by stitching, or otherwise--to form a fluid absorbing portion for the underpad. The third and fourth layers are laminated together with a urethane adhesive to form a leakage preventing portion for the pad. The second and third layers are also laminated together with the urethene adhesive to complete the underpad constructions.

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