MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR
    11.
    发明申请

    公开(公告)号:WO2008076472A3

    公开(公告)日:2008-06-26

    申请号:PCT/US2007/073647

    申请日:2007-07-17

    Abstract: A molded respirator is made from a monocomponent monolayer nonwoven web of continuous charged monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that have been bonded to form a coherent and handleable web which further may be softened while retaining orientation and fiber structure. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer.

    PLEATED FILTER WITH MONOLAYER MONOCOMPONENT MELTSPUN MEDIA
    14.
    发明申请
    PLEATED FILTER WITH MONOLAYER MONOCOMPONENT MELTSPUN MEDIA 审中-公开
    PLEATED过滤器与单色单声道墨尔本媒体

    公开(公告)号:WO2008016788A1

    公开(公告)日:2008-02-07

    申请号:PCT/US2007/073882

    申请日:2007-07-19

    Abstract: A pleated filter is made from a monocomponent monolayer nonwoven web of continuous monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that are bonded to form a coherent and handleable web having a Gurley Stiffness of at least 100 mg and which further may be softened while retaining orientation and fiber structure. Rows of pleats are formed in the nonwoven web, and the web is cut to a desired size and shape to provide a pleated filter element containing a self-supporting porous monocomponent monolayer matrix of fibers bonded to one another at at least some points of fiber intersection and having an average initial submicron efficiency of at least 15 % at a 1.52 meters/sec face velocity. The filter element is deformation resistant without requiring stiffening layers, bicomponent fibers, adhesive or other reinforcement in the filter media layer.

    Abstract translation: 打褶过滤器由相同聚合物组合物的连续单组分熔融部分结晶和部分无定形纤维的单组分单层非织造纤维网制成,所述纤维被结合以形成具有至少100mg的古利刚度的相干和可处理的纤维网,并且还可以 在保持取向和纤维结构的同时软化。 褶皱线形成在非织造纤维网中,并将纤维网切割成所需的尺寸和形状,以提供褶皱过滤元件,其包含在纤维交叉点的至少某些点处彼此粘合的纤维的自支撑多孔单组分单层基质 并且以1.52米/秒的面速度具有至少15%的平均初始亚微米效率。 过滤元件是抗变形的,而不需要过滤介质层中的加强层,双组分纤维,粘合剂或其他增强材料。

    MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR
    19.
    发明公开
    MOLDED MONOCOMPONENT MONOLAYER RESPIRATOR 有权
    ONE PIECE形单层口罩

    公开(公告)号:EP2049203A2

    公开(公告)日:2009-04-22

    申请号:EP07871007.6

    申请日:2007-07-17

    Abstract: A molded respirator is made from a monocomponent monolayer nonwoven web of continuous charged monocomponent meltspun partially crystalline and partially amorphous oriented fibers of the same polymeric composition that have been bonded to form a coherent and handleable web which further may be softened while retaining orientation and fiber structure. The respirator is a cup-shaped porous monocomponent monolayer matrix whose matrix fibers are bonded to one another at at least some points of fiber intersection. The matrix has a King Stiffness greater than 1 N. The respirator may be formed without requiring stiffening layers, bicomponent fibers, or other reinforcement in the filter media layer.

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