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    METHOD FOR MAKING SHAPED FILTRATION ARTICLES
    1.
    发明申请
    METHOD FOR MAKING SHAPED FILTRATION ARTICLES 有权
    制作形状过滤文章的方法

    公开(公告)号：US20090315224A1

    公开(公告)日：2009-12-24

    申请号：US12375494

    申请日：2007-07-17

    申请人： Seyed A. Angadjivand ,  Marvin E. Jones ,  James E. Springett ,  James E. Springett ,  John M. Brandner ,  Timothy J. Lindquist

    发明人： Seyed A. Angadjivand ,  Marvin E. Jones ,  James E. Springett ,  James E. Springett ,  John M. Brandner ,  Timothy J. Lindquist

    IPC分类号： B29C39/00 ,  B29C59/00

    CPC分类号： B01D39/163 ,  B01D46/0001 ,  B01D46/521

    摘要： Shaped filtration articles are made from a monocomponent nonwoven web formed by flowing first and second fiber-forming materials of the same polymeric composition through first and second die cavities in respective fluid communication with first and second sets of orifices in a meltblowing die tip. The first fiber-forming material flows at a lesser flow rate or viscosity through the first die cavity and first set of orifices to form a set of smaller size filaments and the second fiber-forming material flows at a greater flow rate or viscosity through the second die cavity and second set of orifices to form a set of larger size filaments. The collected nonwoven web contains a meltblown bimodal mass fraction/fiber size mixture of intermingled continuous microfibers and larger size fibers of the same polymeric composition.

    摘要翻译： 形成的过滤制品由单组分非织造织物制成，所述单组分非织造纤维网通过在熔吹模头中与第一和第二组孔流体连通地通过第一和第二模具腔流动相同聚合物组合物的第一和第二纤维形成材料而形成。 第一纤维形成材料以较小的流速或粘度通过第一模腔和第一组孔流动以形成一组较小尺寸的细丝，并且第二纤维形成材料以较大的流速或粘度流过第二纤维形成材料 模腔和第二组孔以形成一组较大尺寸的细丝。 收集的非织造纤维网含有相同聚合物组合物的混合连续微纤维和较大尺寸纤维的熔喷双峰质量分数/纤维尺寸混合物。

    Method for making shaped filtration articles
    2.
    发明授权
    Method for making shaped filtration articles 有权
    成型过滤制品的制造方法

    公开(公告)号：US08029723B2

    公开(公告)日：2011-10-04

    申请号：US12375494

    申请日：2007-07-17

    申请人： Seyed A. Angadjivand ,  Marvin E. Jones ,  James E. Springett ,  John M. Brandner ,  Timothy J. Lindquist

    发明人： Seyed A. Angadjivand ,  Marvin E. Jones ,  James E. Springett ,  John M. Brandner ,  Timothy J. Lindquist

    IPC分类号： D01D5/098 ,  D04H3/03 ,  D04H3/16 ,  D06M10/02 ,  H05B7/00

    CPC分类号： B01D39/163 ,  B01D46/0001 ,  B01D46/521

    摘要： Shaped filtration articles are made from a monocomponent nonwoven web formed by flowing first and second fiber-forming materials of the same polymeric composition through first and second die cavities in respective fluid communication with first and second sets of orifices in a meltblowing die tip. The first fiber-forming material flows at a lesser flow rate or viscosity through the first die cavity and first set of orifices to form a set of smaller size filaments and the second fiber-forming material flows at a greater flow rate or viscosity through the second die cavity and second set of orifices to form a set of larger size filaments. The collected nonwoven web contains a meltblown bimodal mass fraction/fiber size mixture of intermingled continuous microfibers and larger size fibers of the same polymeric composition.

    摘要翻译： 形成的过滤制品由单组分非织造织物制成，所述单组分非织造纤维网通过在熔吹模头中与第一和第二组孔流体连通地通过第一和第二模具腔流动相同聚合物组合物的第一和第二纤维形成材料而形成。 第一纤维形成材料以较小的流速或粘度通过第一模腔和第一组孔流动以形成一组较小尺寸的细丝，并且第二纤维形成材料以更大的流速或粘度流过第二纤维形成材料 模腔和第二组孔以形成一组较大尺寸的细丝。 收集的非织造纤维网含有相同聚合物组合物的混合连续微纤维和较大尺寸纤维的熔喷双峰质量分数/纤维尺寸混合物。

    MONOCOMPONENT MONOLAYER MELTBLOWN WEB AND MELTBLOWING APPARATUS
    3.
    发明申请
    MONOCOMPONENT MONOLAYER MELTBLOWN WEB AND MELTBLOWING APPARATUS 有权
    单声道单声道麦克风和麦克风设备

    公开(公告)号：US20100201041A1

    公开(公告)日：2010-08-12

    申请号：US12765533

    申请日：2010-04-22

    申请人： John M. Brandner ,  William J. Kopecky ,  Seyed A. Angadjivand ,  James E. Springett ,  Timothy J. Lindquist

    发明人： John M. Brandner ,  William J. Kopecky ,  Seyed A. Angadjivand ,  James E. Springett ,  Timothy J. Lindquist

    IPC分类号： B29C67/00

    CPC分类号： D04H3/02 ,  B01D39/1623 ,  B01D2239/064 ,  D01D5/082 ,  D01D5/0985 ,  D01F6/06 ,  D04H1/56 ,  Y10T442/60 ,  Y10T442/608 ,  Y10T442/614 ,  Y10T442/619 ,  Y10T442/68 ,  Y10T442/681

    摘要： A porous monocomponent nonwoven web contains a bimodal mass fraction/fiber size mixture of intermingled continuous microfibers and larger size fibers of the same polymeric composition. There are at least five times as many microfibers as larger size fibers, and a histogram of the mass fraction of fibers vs. fiber size exhibits a larger size fiber mode greater than 10 μm. The web may be made by flowing fiber-forming material through a die cavity having larger size orifices and at least five times as many smaller size orifices to form filaments, attenuating the filaments into fibers and collecting the attenuated fibers to form the nonwoven web. The web is especially well suited to the manufacture of self-supporting three dimensional articles such as molded cup-shaped respirators and pleated air filters.

    摘要翻译： 多孔单组分非织造纤维网含有相同聚合物组合物的混合连续微纤维和较大尺寸纤维的双峰质量分数/纤维尺寸混合物。 与较大尺寸纤维相比，至少有五倍的微纤维，纤维质量分数与纤维尺寸的直方图显示出大于10μm的较大尺寸纤维模式。 纤维网可以通过使纤维形成材料流过具有较大尺寸孔的模腔并且至少五倍于更小尺寸的孔以形成长丝，将长丝衰减成纤维并收集减弱的纤维以形成非织造纤维网而制成。 纤维网特别适用于制造自支撑三维制品，例如模制的杯形呼吸器和打褶空气过滤器。

    PLEATED FILTER WITH BIMODAL MONOLAYER MONOCOMPONENT MEDIA
    5.
    发明申请
    PLEATED FILTER WITH BIMODAL MONOLAYER MONOCOMPONENT MEDIA 有权
    带双向单声道单声道介质的滤色片

    公开(公告)号：US20080022643A1

    公开(公告)日：2008-01-31

    申请号：US11461307

    申请日：2006-07-31

    申请人： Andrew R. Fox ,  John D. Stelter ,  Seyed A. Angadjivand ,  Timothy J. Lindquist ,  John M. Brandner ,  James E. Springett

    发明人： Andrew R. Fox ,  John D. Stelter ,  Seyed A. Angadjivand ,  Timothy J. Lindquist ,  John M. Brandner ,  James E. Springett

    IPC分类号： B01D46/00

    CPC分类号： B01D46/521 ,  B01D39/163 ,  B01D2239/064 ,  D04H3/14 ,  D04H3/16 ,  Y10T156/1015 ,  Y10T156/108 ,  Y10T442/68

    摘要： A pleated filter is made from a monocomponent monolayer nonwoven web containing a bimodal mass fraction/fiber size mixture of intermingled larger size and smaller size continuous monocomponent polymeric fibers of the same polymeric composition. Rows of pleats are formed in the nonwoven web, and the pleated web is cut to a desired size and shape to provide a 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 or other reinforcing measures in the filter media layer.

    摘要翻译： 褶皱过滤器由单组分单层非织造纤维网制成，其含有相同聚合物组合物的混合较大尺寸和较小尺寸连续单组分聚合物纤维的双峰质量分数/纤维尺寸混合物。 褶皱线形成在非织造纤维网中，并且打褶的纤维网被切割成所需的尺寸和形状，以提供过滤元件，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，不需要过滤介质层中的加强层，双组分纤维或其他增强措施。

    Pleated filter with bimodal monolayer monocomponent media
    6.
    发明授权
    Pleated filter with bimodal monolayer monocomponent media 有权
    带双峰单层单组分的褶皱过滤器

    公开(公告)号：US08372175B2

    公开(公告)日：2013-02-12

    申请号：US12789053

    申请日：2010-05-27

    申请人： Andrew R. Fox ,  John D. Stelter ,  Seyed A. Angadjivand ,  Timothy J. Lindquist ,  John M. Brandner ,  James E. Springett

    发明人： Andrew R. Fox ,  John D. Stelter ,  Seyed A. Angadjivand ,  Timothy J. Lindquist ,  John M. Brandner ,  James E. Springett

    IPC分类号： B01D46/00

    CPC分类号： B01D46/521 ,  B01D39/163 ,  B01D2239/064 ,  D04H3/14 ,  D04H3/16 ,  Y10T156/1015 ,  Y10T156/108 ,  Y10T442/68

    摘要： A pleated filter is made from a monocomponent monolayer nonwoven web containing a bimodal mass fraction/fiber size mixture of intermingled larger size and smaller size continuous monocomponent polymeric fibers of the same polymeric composition. Rows of pleats are formed in the nonwoven web, and the pleated web is cut to a desired size and shape to provide a filter element containing a self-supporting porous monocomponent monolayer matrix of fibers bonded to one another 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 or other reinforcing measures in the filter media layer.

    摘要翻译： 褶皱过滤器由单组分单层非织造纤维网制成，其含有相同聚合物组合物的混合较大尺寸和较小尺寸连续单组分聚合物纤维的双峰质量分数/纤维尺寸混合物。 褶皱线形成在非织造纤维网中，并且打褶的纤维网被切割成所需的尺寸和形状，以提供过滤元件，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，不需要过滤介质层中的加强层，双组分纤维或其他增强措施。