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    Method of making high-elongation apertured nonwoven web
    3.
    发明授权
    Method of making high-elongation apertured nonwoven web 有权
    制造高伸长率无孔纤维网的方法

    公开(公告)号：US08968614B2

    公开(公告)日：2015-03-03

    申请号：US11321347

    申请日：2005-12-29

    申请人： Fred N. Desai ,  Hiroshi Nakahata ,  John J. Curro ,  Douglas H. Benson

    发明人： Fred N. Desai ,  Hiroshi Nakahata ,  John J. Curro ,  Douglas H. Benson

    IPC分类号： B29C55/14 ,  A61F13/512 ,  D04H1/54 ,  D06C3/00 ,  A61F13/513

    CPC分类号： A61F13/512 ,  A61F2013/51322 ,  B29C55/146 ,  D04H1/5405 ,  D04H1/541 ,  D04H1/559 ,  D04H1/56 ,  D06C3/00 ,  Y10T428/24273 ,  Y10T428/24322

    摘要： An extensible apertured nonwoven web, and a method for making such an apertured nonwoven web. In one embodiment the method comprises the steps of providing an apertured nonwoven web, incrementally stretching it in a direction substantially parallel to the cross machine direction, and applying tension in the machine direction such that the web width after applying tension is less than the web width after incremental stretching. In another embodiment the method comprises the steps of providing a nonwoven web; weakening the nonwoven web at a plurality of locations to create a plurality of weakened, melt-stabilized locations; applying a first tensioning force to the nonwoven web to cause the nonwoven web to rupture at the plurality of weakened, melt-stabilized locations creating a plurality of apertures in the nonwoven web coincident with the weakened, melt-stabilized locations, incrementally stretching the nonwoven web in a direction substantially parallel to the cross machine direction, and applying tension in the machine direction such that the web width after applying machine direction tension is less than the web width after incremental stretching. An apparatus for producing a web of the present invention by this method is also disclosed. The extensible apertured nonwoven web produced has a plurality of apertures each having a hole size greater than 2 mm2, and a hole aspect ratio less than 6, the nonwoven web having an open area greater than 15% and being capable of at least 70% extension in the cross machine direction at a loading of 10 g/cm.

    摘要翻译： 可扩展的有孔非织造纤网，以及制造这种有孔非织造纤维网的方法。 在一个实施例中，该方法包括以下步骤：提供有孔非织造纤维网，其在基本上平行于机器方向的方向上递增拉伸，并且在机器方向施加张力，使得施加张力之后的幅材宽度小于幅材宽度 增量拉伸后。 在另一个实施方案中，该方法包括提供非织造纤维网的步骤; 在多个位置处弱化非织造纤维网以产生多个弱化，熔融稳定的位置; 对所述非织造纤维网施加第一张紧力以使所述非织造纤维网在所述多个弱化的熔融稳定位置处破裂，从而在所述非织造纤维网中产生与所述弱化的熔融稳定位置重合的多个孔，增量地拉伸所述非织造纤维网 在大致平行于机器方向的方向上，并且沿机器方向施加张力，使得施加机器方向张力之后的卷材宽度小于增量拉伸之后的卷材宽度。 还公开了一种通过该方法制造本发明的网的装置。 所生产的可延伸的有孔非织造织物具有多个孔，每个孔具有大于2mm 2的孔尺寸，小于6的孔长径比，该非织造纤维网的开口面积大于15％并且能够至少延伸70％ 在十字机械方向上以10g / cm的载荷。

    Film, laminated sheet and methods of making same
    7.
    发明授权
    Film, laminated sheet and methods of making same 有权
    薄膜，层压板及其制造方法

    公开(公告)号：US06811643B2

    公开(公告)日：2004-11-02

    申请号：US10373256

    申请日：2003-02-24

    申请人： Larry Hughey McAmish ,  Kenneth L. Lilly

    发明人： Larry Hughey McAmish ,  Kenneth L. Lilly

    IPC分类号： B29C4706

    CPC分类号： B29C55/023 ,  B29C55/12 ,  B29C55/146 ,  B29C55/18 ,  B29K2105/04 ,  B32B37/153 ,  B32B38/0032 ,  B32B2038/0028 ,  B32B2305/026 ,  B32B2305/18 ,  B32B2305/30

    摘要： A method of making a microporous laminate sheet having a first film layer and a second layer. The first film layer includes a pore initiator and is bonded to the second layer in order to form a laminate sheet. The laminate sheet is then stretched using at least one CD intermeshing stretcher and at least one MDO stretching unit. Methods of making a microporous film is well as a microporous film laminate are also provided, along with an apparatus for stretching a film or laminate.

    摘要翻译： 一种制造具有第一膜层和第二层的微孔层压片的方法。 第一膜层包括孔引发剂，并且结合到第二层以形成层压片。 然后使用至少一个CD相互啮合的拉伸机和至少一个MDO拉伸单元拉伸层压片材。 还提供了制造微孔膜的方法以及用于拉伸膜或层压体的装置的微孔膜层压体。

    Film, laminated sheet and methods of making same
    8.
    发明申请
    Film, laminated sheet and methods of making same 有权
    薄膜，层压板及其制造方法

    公开(公告)号：US20030213549A1

    公开(公告)日：2003-11-20

    申请号：US10373256

    申请日：2003-02-24

    发明人： Larry Hughey McAmish ,  Kenneth L. Lilly

    IPC分类号： B29C047/00 ,  B29C067/20 ,  B32B031/00

    CPC分类号： B29C55/023 ,  B29C55/12 ,  B29C55/146 ,  B29C55/18 ,  B29K2105/04 ,  B32B37/153 ,  B32B38/0032 ,  B32B2038/0028 ,  B32B2305/026 ,  B32B2305/18 ,  B32B2305/30

    摘要： A method of making a microporous laminate sheet having a first film layer and a second layer. The first film layer includes a pore initiator and is bonded to the second layer in order to form a laminate sheet. The laminate sheet is then stretched using at least one CD intermeshing stretcher and at least one MDO stretching unit. Methods of making a microporous film is well as a microporous film laminate are also provided, along with an apparatus for stretching a film or laminate.

    摘要翻译： 一种制造具有第一膜层和第二层的微孔层压片的方法。 第一膜层包括孔引发剂，并且结合到第二层以形成层压片。 然后使用至少一个CD相互啮合的拉伸机和至少一个MDO拉伸单元拉伸层压片材。 还提供了制造微孔膜的方法以及用于拉伸膜或层压体的装置的微孔膜层压体。

    Process of making high-strength yarns
    9.
    发明授权
    Process of making high-strength yarns 失效
    制造高强度纱线的工艺

    公开(公告)号：US6054086A

    公开(公告)日：2000-04-25

    申请号：US617635

    申请日：1996-03-19

    申请人： Kazuhiko Kurihara ,  Hiroshi Yazawa

    发明人： Kazuhiko Kurihara ,  Hiroshi Yazawa

    IPC分类号： B29C55/14 ,  B29D28/00 ,  B32B37/14 ,  D01D5/42 ,  D01F6/04 ,  B29C47/06 ,  B29C55/08 ,  D01F8/06

    CPC分类号： B32B37/144 ,  B29C55/146 ,  B29D28/00 ,  B32B38/1816 ,  D01D5/426 ,  D01F6/04 ,  B29K2023/0683 ,  B29K2023/12

    摘要： An ultra-high molecular weight polyolefin having a viscosity average molecular weight of at least 500,000 is subjected to melt forming into a film, the thus obtained molten film or solid state film is transversely stretched while holding both the side edges of the film, the stretched film is longitudinally slitted into tapes, and then the thus obtained tapes are longitudinally stretched thereby to produce high-strength yarns easily. A number of slits are longitudinally or transversely made in films made of an ultra-high molecular weight polyolefin having a viscosity average molecular weight of at least 500,000 so that the films each take a meshy form when spread in the direction perpendicular to the slits, and the meshy form structures are stretched in the direction of the slits to prepare meshy webs having a high strength unidirectionally. At least one member selected from the thus prepared meshy webs is used as one nonwoven web, thereby producing a high-strength, web-crossed laminated nonwoven easily.

    摘要翻译： 将粘均分子量至少为500,000的超高分子量聚烯烃熔融成膜，将所得到的熔融膜或固态膜横向拉伸，同时保持膜的两侧边缘，拉伸 薄膜纵向纵切成条带，然后由此获得的带材纵向拉伸，从而容易地生产高强度纱线。 在由粘均分子量至少为500,000的超高分子量聚烯烃制成的薄膜中纵向或纵向地制造多个狭缝，使得当在垂直于狭缝的方向上分散时，薄膜各自呈现网状，并且 将网状结构体沿狭缝的方向拉伸，以制备单向高强度的网状网。 选自如此制备的网状纤维网中的至少一个用作一个非织造纤维网，由此容易地制备高强度，网状交叉的层压非织造织物。

    Fluoroplastic apertured film fabric, structures employing same and method of making same
    10.
    发明授权
    Fluoroplastic apertured film fabric, structures employing same and method of making same 失效
    氟塑料多孔膜织物，采用其的结构及其制造方法

    公开(公告)号：US5776343A

    公开(公告)日：1998-07-07

    申请号：US510723

    申请日：1995-08-03

    申请人： D. Timothy Cullen ,  Edward E. Hovis ,  Joseph V. Marra

    发明人： D. Timothy Cullen ,  Edward E. Hovis ,  Joseph V. Marra

    IPC分类号： B01D39/16 ,  B01D63/14 ,  B01D67/00 ,  B01D71/32 ,  B26D7/14 ,  B26F1/24 ,  B26F3/00 ,  B29C43/22 ,  B29C47/00 ,  B29C55/14 ,  B29C59/02 ,  B29C59/04 ,  B32B3/10

    CPC分类号： B32B3/10 ,  B01D39/1692 ,  B01D63/14 ,  B01D67/0025 ,  B01D67/0027 ,  B01D69/12 ,  B01D71/32 ,  B26D7/14 ,  B26F1/24 ,  B26F3/002 ,  B29C43/222 ,  B29C47/0019 ,  B29C47/0021 ,  B29C55/146 ,  B29C59/022 ,  B01D2323/08 ,  B01D2325/04 ,  B01D2325/08 ,  B01D2325/20 ,  B01D2325/30 ,  B29C47/00 ,  B29C47/0033 ,  B29C59/04 ,  B29K2027/12 ,  B29L2009/00 ,  B29L2031/737 ,  Y10S264/48 ,  Y10T156/1039 ,  Y10T156/1041

    摘要： An apertured film extruded from a crystalline, thermoplastic, extrudable fluoroplastic material. The film includes spaced-apart strand segments defining apertures therebetween and has at least 10 strand segments per inch. The film has a thickness of 2-12 mils and a Frazier air permeability number in the range of 200-2,000. The invention includes a process for preparing an apertured thermoplastic film by a single-sided embossing method. The process includes the steps of extruding in the machine direction, a film of a molten, crystalline, thermoplastic, extrudable, fluoroplastic material. The molten extruded film is passed in the machine direction through the nip of two metal rollers. One of the rollers has a substantially smooth surface, having a convex configuration as viewed from a direction substantially parallel to the axis of the roll, such that the diameter in the center of the roll is in the range of 8-12 mils greater than the diameter at the ends of the roller for a 40 inch roller. The other roller includes a plurality of discrete, raised projections disposed in a pattern. Each of the projections terminates in a distal end. The ends are separated from each other and are completely surrounded by continuous surface regions located proximate of the distal ends. A sufficient pressure is applied at the nip to cause a plurality of small apertures and/or thin areas to be formed in the extruded film in substantially the same pattern as the pattern of discrete, raised projections of the other of the rollers. The film is stretched in both the cross-machine direction and in the machine direction to increase the open area of the apertures and cause the thin areas to open into apertures. The invention also includes a laminated structure.

    摘要翻译： 从结晶，热塑性，可挤出的氟塑料材料挤出的多孔薄膜。 胶片包括间隔开的股线段，在其间限定孔，并且每英寸具有至少10股线段。 该薄膜的厚度为2-12密耳，Frazier透气度数在200-2,000范围内。 本发明包括通过单面压印方法制备多孔热塑性薄膜的方法。 该方法包括在机器方向挤出熔融的，结晶的，热塑性的，可挤出的氟塑料材料的薄膜的步骤。 熔融挤压膜沿机器方向通过两个金属辊的辊隙。 辊中的一个具有基本上光滑的表面，从基本上平行于辊的轴线的方向观察时具有凸形结构，使得辊中心的直径在8-12密耳的范围内比 在40英寸滚筒的辊的端部的直径。 另一个辊子包括以图案设置的多个离散的凸起突起。 每个突起终止在远端。 端部彼此分离并且被位于远端附近的连续表面区域完全包围。 在辊隙处施加足够的压力以使挤出膜中形成多个小孔和/或薄区域，其形状与其他辊的分离的凸起突起的图案基本相同。 该薄膜在横向和纵向都被拉伸以增加孔的开口面积，并使薄的区域打开到孔中。 本发明还包括层压结构。