Absorbent article containing a crosslinked elastic film
    8.
    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

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

    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
    10.
    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

    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。