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41 条记录 (耗时 0.026 秒)

    Absorbent article containing a crosslinked elastic film
    7.
    发明授权
    Absorbent article containing a crosslinked elastic film 有权
    含有交联弹性膜的吸收制品

    公开(公告)号：US07910795B2

    公开(公告)日：2011-03-22

    申请号：US11716406

    申请日：2007-03-09

    申请人： Oomman P. Thomas ,  C. Allen Smith ,  James Austin

    发明人： Oomman P. Thomas ,  C. Allen Smith ,  James Austin

    IPC分类号： C08F2/46 ,  C08J3/28 ,  A61L15/00

    CPC分类号： B32B27/12 ,  A61F13/45 ,  Y10T428/249921 ,  Y10T428/25 ,  Y10T428/31 ,  Y10T428/31855

    摘要： A technique for imparting latent elasticity to components of an absorbent article is provided. More specifically, a latent elastic film that contains a crosslinkable semi-crystalline polyolefin is initially incorporated into an absorbent article. The film is not highly elastic prior to crosslinking and is thus dimensionally stable. Consequently, the film need not be maintained in a mechanically stretched condition during attachment to other components of the absorbent article, which provides for greater freedom in the location and manner in which the components are attached together. Once incorporated into the absorbent article, the semi-crystalline polyolefin is crosslinked to form a three-dimensional network having elastic memory. The film may also be heat activated, either through crosslinking or an additional step, to cause the film to shrink and further improve its stretch characteristics.

    摘要翻译： 提供了一种用于赋予吸收制品的组分的潜在弹性的技术。 更具体地说，包含可交联的半结晶聚烯烃的潜在的弹性薄膜最初并入吸收性物品中。 该膜在交联之前不具有高弹性，因此尺寸稳定。 因此，在附着到吸收制品的其它部件时，膜不需要保持在机械拉伸的状态，这提供了在部件和部件附接在一起的更大的自由度。 一旦结合到吸收制品中，半结晶聚烯烃被交联以形成具有弹性记忆的三维网络。 膜也可以通过交联或附加步骤被热活化，以使膜收缩并进一步改善其拉伸特性。

    Elastomeric materials
    9.
    发明授权
    Elastomeric materials 有权
    弹性材料

    公开(公告)号：US07476447B2

    公开(公告)日：2009-01-13

    申请号：US10335255

    申请日：2002-12-31

    申请人： Oomman P. Thomas

    发明人： Oomman P. Thomas

    IPC分类号： B32B27/08

    CPC分类号： D04H1/4382 ,  D04H1/4291 ,  D04H1/4374 ,  D04H1/56 ,  D04H1/593 ,  Y10T428/31909 ,  Y10T442/637 ,  Y10T442/674 ,  Y10T442/68 ,  Y10T442/681

    摘要： The present invention is directed to improved elastic materials. More specifically, the present invention is directed to low basis weight elastic webs, such as elastic films and elastomeric fibrous meltblown or spunbond webs which may include elastomeric fibers and/or elastomeric continuous filaments. The present invention is also directed to laminate structures which include the elastic webs. The elastic webs include an elastomeric block copolymer and a polyolefin wax, and do not include a tackifier. The low basis weight elastic webs of the present invention may display tension values upon elongation equal to or greater than the tension values of previously known elastic webs of greater basis weight. The elastic laminate structures of the present invention comprise at least one layer an elastic web adhesively bonded to one or more other webs, such as, for instance a woven or nonwoven web. The elastic laminate structures made in accordance with the invention have shown remarkably good uniformity, hand, bulk, strength and elastic properties while decreasing the required amount of raw materials. In addition, the individual layers of the disclosed laminate structure may shown improved compatibility with each other and may display improved bonding between layers.

    摘要翻译： 本发明涉及改进的弹性材料。 更具体地，本发明涉及低基重弹性纤维网，例如弹性膜和弹性体纤维熔喷或纺粘纤维网，其可以包括弹性体纤维和/或弹性连续长丝。 本发明还涉及包括弹性纤维网的层压结构。 弹性纤维网包括弹性体嵌段共聚物和聚烯烃蜡，并且不包括增粘剂。 本发明的低基重弹性纤维网可以在伸长率时显示张力值等于或大于先前已知的具有较大基重的弹性腹板的张力值。 本发明的弹性层压结构包括至少一层弹性纤维网，该弹性纤维网粘合地粘合到一个或多个其它纤维网上，例如织造或无纺纤维网。 根据本发明制造的弹性层压结构在减少所需量的原料的同时显示出非常好的均匀性，手感，体积，强度和弹性性能。 此外，所公开的层压结构的各个层可以显示彼此的改善的相容性，并且可以显示层之间的改善的粘结。

    Apparatus and methods for making crosslinked elastic laminates
    10.
    发明授权
    Apparatus and methods for making crosslinked elastic laminates 有权
    制造交联弹性层压材料的装置和方法

    公开(公告)号：US07384491B2

    公开(公告)日：2008-06-10

    申请号：US11218313

    申请日：2005-09-01

    申请人： James R. Fitts, Jr. ,  Christopher A. Laslie ,  Oomman P. Thomas ,  Howard M. Welch

    发明人： James R. Fitts, Jr. ,  Christopher A. Laslie ,  Oomman P. Thomas ,  Howard M. Welch

    IPC分类号： B29C70/52 ,  B29C47/36 ,  B65H81/00 ,  B32B27/02 ,  D04H3/16 ,  B29C65/02 ,  B29C65/72

    CPC分类号： B32B38/0036 ,  B32B37/153 ,  B32B37/203 ,  B32B38/1858 ,  B32B2310/0831 ,  B32B2310/0887 ,  B32B2555/02

    摘要： An apparatus for making an elastic laminate including a crosslinked elastic layer formed of an elastic copolymer includes a die for extruding a layer of crosslinkable elastic copolymer, at least one roll for conveying the elastic layer, a supply source for providing at least one nonwoven web, a lamination nip for laminating at least one nonwoven web to the elastic layer, a processing unit for crosslinking the elastic layer and a winder for collecting the elastic laminate. The crosslinkable elastic copolymer may be a crosslinkable elastic styrenic block copolymer, a crosslinkable semi-crystalline polyolefin plastomer, or a crosslinkable propylene-ethylene copolymer. The crosslinkable elastic layer may be extruded in the form of a plurality of parallel filaments such as by a filament die. The processing unit may be positioned between the at least one roll and the lamination nip or may be positioned between the lamination nip and the winder. The processing unit may have an open or a closed configuration and may be an electron beam processing unit.

    摘要翻译： 一种用于制造包括由弹性共聚物形成的交联弹性层的弹性层压材料的装置包括用于挤出可交联弹性共聚物层的模具，用于输送弹性层的至少一个辊，用于提供至少一个非织造纤维网的供应源， 用于将至少一个非织造纤维网层压到弹性层的层压辊隙，用于使弹性层交联的处理单元和用于收集弹性层压板的卷绕机。 可交联弹性共聚物可以是交联性弹性苯乙烯嵌段共聚物，交联性半结晶聚烯烃塑性体，或交联性丙烯 - 乙烯共聚物。 可交联弹性层可以以多个平行长丝的形式挤出，例如通过丝模。 处理单元可以位于至少一个辊和层压辊隙之间​​，或者可以位于层压辊隙和卷绕机之间。 处理单元可以具有打开或闭合配置，并且可以是电子束处理单元。