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    Breathable composite sheet structure
    1.
    发明授权
    Breathable composite sheet structure 失效
    透气复合片材结构

    公开(公告)号：US06187696B1

    公开(公告)日：2001-02-13

    申请号：US08984613

    申请日：1997-12-03

    申请人： Hyun Sung Lim ,  J. Michael McKenna ,  George Joseph Ostapchenko ,  Shailaja R. Vaidya ,  John Joseph Curro ,  Gary Dean Lavon

    发明人： Hyun Sung Lim ,  J. Michael McKenna ,  George Joseph Ostapchenko ,  Shailaja R. Vaidya ,  John Joseph Curro ,  Gary Dean Lavon

    IPC分类号： B32B518

    CPC分类号： B32B27/12 ,  B32B5/18 ,  Y10T442/2148 ,  Y10T442/647 ,  Y10T442/649 ,  Y10T442/674 ,  Y10T442/675 ,  Y10T442/676

    摘要： A moisture vapor permeable, substantially liquid impermeable composite sheet material comprising a fibrous substrate and a moisture vapor permeable thermoplastic film layer. The moisture vapor permeable film has an average thickness of less than 25 microns, a peel strength of at least 0.1 N/cm, a dynamic fluid transmission of less than about 0.75 g/m2 when subjected to an impact energy of about 2400 joules/m2, a hydrostatic head of at least 60 cm, and a moisture vapor transmission rate, according to the desiccant method, of at least 2800 g/m2/24 hr. The moisture vapor permeable film is preferably comprised of at least about 50% by weight of polymer selected from the group of block copolyether esters, block copolyether amides, polyurethanes, polyvinyl alcohol, and combinations thereof. A method for making such a sheet material is also provided.

    摘要翻译： 一种水蒸气透过的，基本上液体不可渗透的复合材料片材，其包含纤维基材和透湿气体的热塑性薄膜层。 透湿膜的平均厚度小于25微米，剥离强度至少为0.1N / cm，当受到约2400焦耳/平方米的冲击能量时，动态流体传递小于约0.75g / m2 ，至少60cm的静水压头，根据干燥剂方法的水蒸气透过率至少为2800g / m 2/24小时。 透湿膜的水分优选为至少约50重量％的选自嵌段共聚醚酯，嵌段共聚醚酰胺，聚氨酯，聚乙烯醇及其组合的聚合物。 还提供了制造这种片材的方法。

    Polyoxymethylene compositions containing at least one encapsulated nucleant
    4.
    发明授权
    Polyoxymethylene compositions containing at least one encapsulated nucleant 失效
    含有至少一种包封的成核剂的聚甲醛组合物

    公开(公告)号：US5298537A

    公开(公告)日：1994-03-29

    申请号：US865880

    申请日：1992-04-09

    申请人： Shailaja R. Vaidya

    发明人： Shailaja R. Vaidya

    IPC分类号： C08K9/10 ,  C08L23/00 ,  C08L59/00

    CPC分类号： C08K9/10 ,  C08L59/00 ,  C08L23/00

    摘要： Incorporation of an encapsulated nucleant made from an encapsulant polymer and a nucleant, wherein the encapsulant polymer is selected from linear low density polyethylene, high density polyethylene, and polypropylene, into polyoxymethylene compositions results in a decrease in the center line porosity of polyoxymethylene extruded stock shape parts, without also reducing the rate of extrusion. The compositions are especially useful for extrusion into stock shape parts, such as rod, slab, sheet, and tube stock, which are used for machined parts (like artificial limbs and complex gears), die cut parts (like washers and gaskets), and control cable inners.

    摘要翻译： 将由密封剂聚合物和成核剂制成的包封的成核剂（其中密封剂聚合物选自线性低密度聚乙烯，高密度聚乙烯和聚丙烯）加入聚甲醛组合物中导致聚甲醛挤出原料形状的中心线孔隙率降低 零件，也不降低挤出速率。 这些组合物特别适用于挤压成用于加工部件（如假肢和复杂齿轮），模切部件（如垫圈和垫圈）的坯料形状部件，例如棒，板，板和管坯，以及 控制电缆内置。

    Breathable composite sheet structure and absorbent articles utilizing same
    7.
    发明授权
    Breathable composite sheet structure and absorbent articles utilizing same 失效
    透气复合片材结构和利用其的吸收制品

    公开(公告)号：US06677258B2

    公开(公告)日：2004-01-13

    申请号：US09194378

    申请日：1998-11-25

    申请人： Nora Liu Carroll ,  Hyun Sung Lim ,  George Joseph Ostapchenko ,  Shailaja R. Vaidya ,  J. Michael Mc Kenna ,  John Joseph Curro ,  Gary Dean Lavon ,  Richard L. Sparks

    发明人： Nora Liu Carroll ,  Hyun Sung Lim ,  George Joseph Ostapchenko ,  Shailaja R. Vaidya ,  J. Michael Mc Kenna ,  John Joseph Curro ,  Gary Dean Lavon ,  Richard L. Sparks

    IPC分类号： B32B2712

    CPC分类号： A61F13/5148 ,  A61F13/51462 ,  B32B27/12 ,  B32B2262/0253 ,  B32B2307/724 ,  B32B2535/00 ,  B32B2555/00 ,  D04H1/4291 ,  D04H1/4374 ,  Y10T442/674 ,  Y10T442/675 ,  Y10T442/678 ,  Y10T442/679

    摘要： A breathable composite sheet material, a method for making such a sheet material, and an absorbent article utilizing the sheet material are provided. The composite sheet material is comprised of a thermoplastic film adhered directly to a fibrous substrate. The thermoplastic film comprises at least 50% by weight of a polymer material from the group of block copolyether esters, block copolyether amides and polyurethanes. The substrate comprises a fibrous web of at least 50% by weight of polyolefin polymersynthetic fibers. The composite sheet exhibits a peel strength of at least 0.1 N/cm, a dynamic fluid transmission of less than about 0.75 g/m2 when subjected to an impact energy of about 2400 joules/m2, and a moisture vapor transmission rate, according to the dessiccant method, of at least 1500 g/m2/2 hr. The absorbent article comprises: (a) a topsheet; (b) a backsheet; and (c) an absorbent core located between the topsheet and the backsheet; wherein the backsheet comprises the non-porous, substantially fluid impermeable moisture vapor permeable composite sheet material described above. The composite sheet material is oriented such that the film layer of the composite sheet material faces toward the absorbent core. The absorbent article may comprise a disposable diaper.

    摘要翻译： 提供透气性复合片材材料，制造这种片状材料的方法和利用片材的吸收制品。 复合片材由直接附着在纤维基材上的热塑性薄膜构成。 热塑性膜包含至少50重量％的来自嵌段共聚醚酯，嵌段共聚醚酰胺和聚氨酯的聚合物材料。 基材包含至少50重量％的聚烯烃聚合物纤维的纤维网。 当经受约2400焦耳/平方米的冲击能量时，复合片材具有至少0.1N / cm的剥离强度，小于约0.75g / m 2的动态流体透过率，以及湿气 传输速率，根据干燥方法，至少1500g / m 2/2小时。 吸收性物品包括：（a）顶片; （b）底片; 和（c）位于顶片和底片之间的吸收芯; 其中所述底片包括上述无孔，基本上流体不透水蒸气透过的复合片材。 复合片材的取向使得复合片材的薄膜层朝向吸收芯。 吸收制品可以包括一次性尿布。

    Absorbent articles exhibiting improved internal environmental conditions
    8.
    发明授权
    Absorbent articles exhibiting improved internal environmental conditions 失效
    表现出改善的内部环境条件的吸收制品

    公开(公告)号：US5938648A

    公开(公告)日：1999-08-17

    申请号：US984463

    申请日：1997-12-03

    申请人： Gary Dean LaVon ,  Hyun Sung Lim ,  J. Michael McKenna ,  George Joseph Ostapchenko ,  Shailaja R. Vaidya ,  Theodora Beck ,  John Joseph Curro

    发明人： Gary Dean LaVon ,  Hyun Sung Lim ,  J. Michael McKenna ,  George Joseph Ostapchenko ,  Shailaja R. Vaidya ,  Theodora Beck ,  John Joseph Curro

    IPC分类号： A61F13/49 ,  A61F5/44 ,  A61F13/15 ,  A61F13/514 ,  A61L15/24 ,  A61L15/26 ,  B32B5/16 ,  B32B27/12

    CPC分类号： A61F13/5148 ,  A61F13/15203 ,  A61F13/51462 ,  A61L15/24 ,  A61L15/26 ,  A61L15/42 ,  B32B5/16

    摘要： The present invention relates to absorbent articles such as diapers, adult incontinence garments, and feminine hygiene products. The present invention further relates to such absorbent articles having outer coverings designed to provide breathability and promote more healthy internal environmental conditions for the wearer. More specifically, the present invention provides an absorbent article comprising (a) a topsheet; (b) a backsheet; and (c) an absorbent core located between the topsheet and the backsheet; wherein the backsheet comprises a non-porous, substantially fluid impermeable, moisture vapor permeable composite sheet material. Preferably, the composite sheet material is oriented such that the film layer of the composite sheet material faces toward said absorbent core. Where the film layer of the composite sheet comprises a substantially hydrophilic elastomer film layer, the substantially hydrophilic elastomer film is preferably located in contact with the fibrous substrate. Where the film layer of the composite sheet comprises a multiple layer film with a substantially hydrophilic elastomer film layer and a substantially hydrophobic elastomer film, the substantially hydrophilic elastomer film is preferably located between the substantially hydrophobic elastomer film and the fibrous substrate. In another embodiment, the film layer may further comprise a third film layer comprising a substantially hydrophobic elastomer film located between the substantially hydrophilic elastomer film and the fibrous substrate. The absorbent article may comprise a disposable diaper.

    摘要翻译： 本发明涉及诸如尿布，成人失禁服装和女性卫生用品的吸收制品。 本发明还涉及这样的吸收制品，其具有设计成提供透气性并促进穿用者更健康的内部环境条件的外覆层。 更具体地，本发明提供一种吸收制品，其包括（a）顶片; （b）底片; 和（c）位于顶片和底片之间的吸收芯; 其中所述底片包括无孔，基本上流体不渗透，水分蒸汽可渗透的复合片材。 优选地，复合片材材料被定向成使得复合片材的膜层朝向所述吸收芯。 当复合片材的膜层包含基本上亲水的弹性体膜层时，基本上亲水的弹性体膜优选位于与纤维基材接触的位置。 当复合片材的膜层包含具有基本上亲水的弹性体膜层和基本疏水的弹性体膜的多层膜时，基本上亲水的弹性体膜优选位于基本上疏水的弹性体膜和纤维基材之间。 在另一个实施方案中，膜层可以进一步包括第三膜层，其包含位于基本上亲水的弹性体膜和纤维基质之间的基本疏水的弹性体膜。 吸收制品可以包括一次性尿布。