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    Latent elastic nonwoven composite
    21.
    发明申请
    Latent elastic nonwoven composite 有权
    潜在弹性非织造布复合材料

    公开(公告)号：US20080003910A1

    公开(公告)日：2008-01-03

    申请号：US11590683

    申请日：2006-10-31

    申请人： Janis Wilson Hughes ,  Tamara Lee Mace ,  Christian Sanders ,  Jose Siqueira

    发明人： Janis Wilson Hughes ,  Tamara Lee Mace ,  Christian Sanders ,  Jose Siqueira

    IPC分类号： D04H13/00

    CPC分类号： B32B37/144 ,  A61F13/15593 ,  A61F13/4902 ,  B29C47/0026 ,  B29C47/0033 ,  B29C47/0057 ,  B29C47/0059 ,  B29C47/009 ,  B29C2791/007 ,  B32B5/04 ,  B32B25/14 ,  B32B25/16 ,  B32B27/12 ,  B32B27/32 ,  B32B37/153 ,  B32B2038/0028 ,  B32B2305/20 ,  B32B2555/02 ,  Y10T442/60

    摘要： A nonwoven composite that exhibits latent elastic properties is provided. More specifically, latent elasticity may be imparted by blending a thermoplastic elastomer with a polyolefin that is capable of forming semi-crystalline domains among the amorphous elastomeric chains, and then forming a film from the blend. The film is then stretched in one or more directions to orient the amorphous elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the amorphous chains may be held in place by the relatively stiff semi-crystalline olefin domains. Subsequently, the stretched film may be activated (e.g., heated) to shrink the film and provide it with “latent” stretchability. For instance, the stretched film may be heated at or above the softening temperature of the polyolefin to soften the crystalline domains and allow the amorphous chains to return to their unoriented state. As a result of the present invention, the elastic film may be extended and recover from its unoriented state.

    摘要翻译： 提供了具有潜在的弹性特性的非织造复合体。 更具体地，可以通过将热塑性弹性体与能够在无定形弹性体链中形成半结晶域的聚烯烃共混，然后从共混物形成膜来赋予潜在的弹性。 然后将膜在一个或多个方向上拉伸以取向无定形弹性体链。 不期望受理论的限制，本发明人认为非晶链的取向状态可以通过相对硬的半结晶烯烃域保持在适当位置。 随后，拉伸的膜可以被激活（例如加热）以使膜收缩并提供“潜在的”拉伸性。 例如，拉伸的膜可以在聚烯烃的软化温度以上加热，以软化结晶域，并使非晶态链恢复到其未取向状态。 作为本发明的结果，弹性膜可以从其未取向状态延伸并恢复。

    Latent elastic nonwoven composite
    22.
    发明授权
    Latent elastic nonwoven composite 有权
    潜在弹性非织造布复合材料

    公开(公告)号：US07585382B2

    公开(公告)日：2009-09-08

    申请号：US11590683

    申请日：2006-10-31

    申请人： Janis Wilson Hughes ,  Tamara Lee Mace ,  Christian Sanders ,  Jose Siqueira

    发明人： Janis Wilson Hughes ,  Tamara Lee Mace ,  Christian Sanders ,  Jose Siqueira

    IPC分类号： B29C47/00 ,  A61F13/15 ,  B65H81/00 ,  B29C65/00 ,  B32B37/00

    CPC分类号： B32B37/144 ,  A61F13/15593 ,  A61F13/4902 ,  B29C47/0026 ,  B29C47/0033 ,  B29C47/0057 ,  B29C47/0059 ,  B29C47/009 ,  B29C2791/007 ,  B32B5/04 ,  B32B25/14 ,  B32B25/16 ,  B32B27/12 ,  B32B27/32 ,  B32B37/153 ,  B32B2038/0028 ,  B32B2305/20 ,  B32B2555/02 ,  Y10T442/60

    摘要： A nonwoven composite that exhibits latent elastic properties is provided. More specifically, latent elasticity may be imparted by blending a thermoplastic elastomer with a polyolefin that is capable of forming semi-crystalline domains among the amorphous elastomeric chains, and then forming a film from the blend. The film is then stretched in one or more directions to orient the amorphous elastomer chains. Without intending to be limited by theory, the present inventors believe that the oriented state of the amorphous chains may be held in place by the relatively stiff semi-crystalline olefin domains. Subsequently, the stretched film may be activated (e.g., heated) to shrink the film and provide it with “latent” stretchability. For instance, the stretched film may be heated at or above the softening temperature of the polyolefin to soften the crystalline domains and allow the amorphous chains to return to their unoriented state. As a result of the present invention, the elastic film may be extended and recover from its unoriented state.

    摘要翻译： 提供了具有潜在的弹性特性的非织造复合体。 更具体地，可以通过将热塑性弹性体与能够在无定形弹性体链中形成半结晶域的聚烯烃共混，然后从共混物形成膜来赋予潜在的弹性。 然后将膜在一个或多个方向上拉伸以取向无定形弹性体链。 不期望受理论的限制，本发明人认为非晶链的取向状态可以通过相对硬的半结晶烯烃域保持在适当位置。 随后，拉伸的膜可以被激活（例如加热）以使膜收缩并提供“潜在的”拉伸性。 例如，拉伸的膜可以在聚烯烃的软化温度以上加热，以软化结晶域，并使非晶态链恢复到其未取向状态。 作为本发明的结果，弹性膜可以从其未取向状态延伸并恢复。