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公开(公告)号：US09162406B2
公开(公告)日：2015-10-20
申请号：US13695463
申请日：2011-04-25
CPC分类号： B29D11/00788 , B29C47/0021 , B29C47/065 , B29C47/145 , B29C47/56 , B29C47/702 , B29C47/707 , B29C2947/92704 , B29C2947/92904 , B29L2007/008 , B29L2009/00 , B32B27/06 , B32B27/08 , B32B2307/40 , B32B2307/516 , B32B2307/518 , B32B2307/732 , Y10T156/1712
摘要： A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another.
摘要翻译： 包括第一分组创建器的馈送块，其形成包括第一多个聚合物层的第一分组，所述第一多个层包括至少四个第一单独的聚合物层; 以及第二分组创建器，其形成包括第二多个聚合层的第二分组，所述第二多个层包括至少四个第二单独的聚合物层，其中所述第一和第二分组创建者被配置为使得对于每个分组创建者， 大致同时形成多个聚合物层的单个聚合物层。 馈送块可以包括分组组合器，其接收并组合第一和第二主分组以形成多层流。 在一些示例中，在彼此组合之前，第一和第二主要分组中的至少一个可以在横向方向上扩展。
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公开(公告)号：US20130011506A1
公开(公告)日：2013-01-10
申请号：US13635940
申请日：2011-03-03
IPC分类号： B29C47/06
CPC分类号： B29C55/023 , B29C48/08 , B29C48/21 , B29C48/30 , B29C48/305 , B29C48/307 , B29C48/49 , B29C48/76 , B29C48/91 , B29C48/914 , B29C48/9165 , B29C55/143 , B29K2995/0018 , B29K2995/0053 , B29L2009/00 , B29L2031/7644
摘要： Generally, the present description relates to a feedblock and a multilayer film die for creating polymeric multilayered films. The feedblock includes a stack of many layers of thin metal plates having flow profile cutouts, to create alternating layers of polymer.
摘要翻译： 通常，本说明书涉及用于产生聚合物多层膜的进料块和多层膜模头。 进料块包括具有流动剖面切口的多层薄金属板的叠层，以产生交替的聚合物层。
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3.发明授权公开(公告)号：US07695660B2
公开(公告)日：2010-04-13
申请号：US11085281
申请日：2005-03-21
IPC分类号： D01D5/08
CPC分类号： D04H3/16 , D01D5/0985 , D04H3/14 , Y10T428/24802 , Y10T442/608 , Y10T442/609 , Y10T442/61 , Y10T442/614 , Y10T442/625 , Y10T442/637 , Y10T442/652 , Y10T442/69
摘要： Nonwoven fibrous webs comprise fibers of uniform diameter that vary in morphology along their length. The variation provides longitudinal segments that exhibit distinctive softening characteristics during a bonding operation. Some segments soften under the conditions of the bonding operation and bond to other fibers of the web, and other segments are passive during the bonding operation. Webs as described can be formed by a method that comprises a) extruding filaments of fiber-forming material; b) directing the filaments through a processing chamber in which the filaments are subjected to longitudinal stress; c) subjecting the filaments to turbulent flow conditions after they exit the processing chamber; and d) collecting the processed filaments; the temperature of the filaments being controlled so that at least some of the filaments solidify while in the turbulent field.
摘要翻译： 非织造纤维织物包括沿其长度形态变化的具有均匀直径的纤维。 该变化提供在接合操作期间表现出特征性软化特性的纵向段。 一些段在接合操作的条件下软化并粘合到幅材的其它纤维上，并且其它段在接合操作期间是无源的。 所描述的网可以通过以下方法形成：a）挤出纤维形成材料的长丝; b）将长丝引导通过其中长丝受到纵向应力的处理室; c）在它们离开处理室之后对其进行湍流条件; 和d）收集经加工的长丝; 灯丝的温度被控制，使得至少一些灯丝在湍流场中固化。
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公开(公告)号：US07591058B2
公开(公告)日：2009-09-22
申请号：US11762942
申请日：2007-06-14
申请人： Michael R. Berrigan , Anne N. De Rovere , William T. Fay , Jerald W. Hall, Jr. , Pamela A. Percha
发明人： Michael R. Berrigan , Anne N. De Rovere , William T. Fay , Jerald W. Hall, Jr. , Pamela A. Percha
CPC分类号： D04H3/16 , D01D5/0985 , Y10T29/49 , Y10T29/49801 , Y10T442/607 , Y10T442/608 , Y10T442/625 , Y10T442/69 , Y10T442/692 , Y10T442/697 , Y10T442/699
摘要： Nonwoven fibrous webs including amorphous polymeric fibers with improved and/or more convenient bondability are disclosed. The nonwoven fibrous webs may include only amorphous polymeric fibers or they may include additional components in addition to amorphous polymeric fibers. The amorphous polymeric fibers within the web may be autogeneously bonded or autogeneously bondable. The amorphous polymeric fibers may be characterized as varying in morphology over the length of continuous fibers so as to provide longitudinal segments that differ from one another in softening characteristics during a selected bonding operation.
摘要翻译： 公开了包括具有改善的和/或更方便的粘合性的无定形聚合物纤维的非织造纤维网。 非织造纤维网可以仅包括无定形聚合物纤维，或者它们除了无定形聚合物纤维之外还可以包括另外的组分。 纤维网内的无定形聚合物纤维可以是自粘结的或可自动结合的。 无定形聚合物纤维的特征可以是连续纤维长度上的形态变化，从而在选择的粘合操作期间提供在软化特性中彼此不同的纵向段。
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公开(公告)号：US06607624B2
公开(公告)日：2003-08-19
申请号：US09835904
申请日：2001-04-16
IPC分类号： D04H302
CPC分类号： D04H3/16 , D01D5/0985 , D04H3/02 , Y10T442/60 , Y10T442/614
摘要： A new fiber-forming method, and related apparatus, are taught in which extruded filaments of fiber-forming material are directed through a processing chamber that is defined by two parallel walls, at least one of which is instantaneously movable toward and away from the other wall; preferably both walls are instantaneously movable toward and away from one another. Movement means provide instantaneous movement to the at least one movable wall. In one embodiment, the movement means comprises biasing means for resiliently biasing the wall toward the other wall. Movement of the wall toward and away from the other wall is sufficiently easy and rapid that the wall will move away from the other wall in response to increases in pressure within the chamber but will be quickly returned to its original position by the biasing means upon resumption of the original pressure within the chamber. In another embodiment the movement means comprises oscillating means for oscillating the wall at a rapid rate. The invention also provides new nonwoven webs, which comprise a collected mass of fibers that includes fibers randomly interrupted by isolated fiber segments that comprise oriented polymer chains but differ in morphology from the main portion of the fiber.
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公开(公告)号：US20110272849A1
公开(公告)日：2011-11-10
申请号：US13102089
申请日：2011-05-06
CPC分类号： B29D11/00788 , B29C47/0021 , B29C47/065 , B29C47/145 , B29C47/56 , B29C47/702 , B29C47/707 , B29C2947/92704 , B29C2947/92904 , B29L2007/008 , B29L2009/00 , B32B27/06 , B32B27/08 , B32B2307/40 , B32B2307/516 , B32B2307/518 , B32B2307/732 , Y10T156/1712
摘要： A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another.
摘要翻译： 包括第一分组创建器的馈送块，其形成包括第一多个聚合物层的第一分组，所述第一多个层包括至少四个第一单独的聚合物层; 以及第二分组创建器，其形成包括第二多个聚合层的第二分组，所述第二多个层包括至少四个第二单独的聚合物层，其中所述第一和第二分组创建者被配置为使得对于每个分组创建者， 大致同时形成多个聚合物层的单个聚合物层。 馈送块可以包括分组组合器，其接收并组合第一和第二主分组以形成多层流。 在一些示例中，在彼此组合之前，第一和第二主要分组中的至少一个可以在横向方向上扩展。
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公开(公告)号：US20110272832A1
公开(公告)日：2011-11-10
申请号：US13102326
申请日：2011-05-06
CPC分类号： B29C47/707 , B29C47/0021 , B29C47/065 , B29C47/145 , B29C47/56
摘要： A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another.
摘要翻译： 包括第一分组创建器的馈送块，其形成包括第一多个聚合物层的第一分组，所述第一多个层包括至少四个第一单独的聚合物层; 以及第二分组创建器，其形成包括第二多个聚合层的第二分组，所述第二多个层包括至少四个第二单独的聚合物层，其中所述第一和第二分组创建者被配置为使得对于每个分组创建者， 大致同时形成多个聚合物层的单个聚合物层。 馈送块可以包括分组组合器，其接收并组合第一和第二主分组以形成多层流。 在一些示例中，在彼此组合之前，第一和第二主要分组中的至少一个可以在横向方向上扩展。
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公开(公告)号：US20110185903A1
公开(公告)日：2011-08-04
申请号：US13085848
申请日：2011-04-13
申请人： Andrew R. Fox , John D. Stelter , Seyed A. Angadjivand , William T. Fay , Michael R. Berrigan , Douglas C. Sundet
发明人： Andrew R. Fox , John D. Stelter , Seyed A. Angadjivand , William T. Fay , Michael R. Berrigan , Douglas C. Sundet
CPC分类号： B01D46/521 , B01D39/163 , D04H3/005 , D04H3/14 , D04H3/16 , Y10T156/1015
摘要： 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 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.
摘要翻译： 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，并且将幅材切割成所需的尺寸和形状，以提供褶皱过滤元件，其包含纤维的至少一些点彼此结合的纤维的自支撑多孔单组分单层基质， 在1.52米/秒的面速下具有至少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。
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公开(公告)号：US20080038976A1
公开(公告)日：2008-02-14
申请号：US11461201
申请日：2006-07-31
CPC分类号： D04H3/16 , D04H3/00 , Y10T428/2481 , Y10T428/249953 , Y10T428/2913 , Y10T428/2969 , Y10T442/3325 , Y10T442/60 , Y10T442/614 , Y10T442/619 , Y10T442/626 , Y10T442/641 , Y10T442/68 , Y10T442/69
摘要： A method for making a bonded nonwoven fibrous web comprising 1) providing a nonwoven fibrous web that comprises oriented semicrystalline polymeric fibers, and 2) subjecting the web to a controlled heating and quenching operation that includes a) forcefully passing through the web a fluid heated to at least the onset melting temperature of said polymeric material for a time too short to wholly melt the fibers, and b) immediately quenching the web by forcefully passing through the web a fluid at a temperature at least 50° C. less than the Nominal Melting Point of the material of the fibers. The fibers of the treated web generally have i) an amorphous-characterized phase that exhibits repeatable softening (making the fibers softenable) and ii) a crystallite-characterized phase that reinforces the fiber structure during softening of the amorphous-characterized phase, whereby the fibers may be autogenously bonded while retaining orientation and fiber structure. Apparatus for carrying out the method can comprise 1) a conveyor for conveying a web to be treated, 2) a heater mounted adjacent a first side of the conveyor and comprising a) a chamber having a wall that faces the web, b) one or more conduits through which a heated gas can be introduced into the chamber under pressure and c) a slot in said chamber wall through which heated gas flows from the chamber onto a web on the conveyor, 3) a source of quenching gas downweb from the heater on the first side of the conveyor, the quenching gas having a temperature substantially less than that of the heated gas, 4) gas-withdrawal mean disposed on the second side of the conveyor opposite from the heater, the gas-withdrawal means having a portion in alignment with the slot so as to draw heated gas from the slot through the web and also a portion downweb from the slot in alignment with the source of quenching gas so as to draw the quenching gas through the web to quench the web. Flow restrictor means is preferably disposed on the second side of the conveyor in the path of at least one of the heated gas and the quenching gas so as to even the distribution of the gas through the web.
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10.发明授权Diesel particulate trap based on a mass of fibrous filter material formed with longitudinal tunnels filled with flexible strands 失效基于形成有填充有柔性线的纵向隧道的纤维过滤材料的质量的柴油颗粒捕集器
公开(公告)号：US5190571A
公开(公告)日：1993-03-02
申请号：US891642
申请日：1992-05-29
CPC分类号： B01D46/00 , B01D39/2082 , F01N3/0226 , F01N2330/10 , F02B3/06 , Y02T10/20 , Y10S55/30
摘要： A diesel particulate trap has a filtering element which is a mass of fibrous filter material that radially fills a tubular casing. The filtering element employs lofty yarn extending in straight lines in a repeating pattern, which lines of lofty yarn have been compacted to form a plurality of fibrous walls that intersect to form tunnels extending in the axial or longitudinal direction of the casing. Some of the tunnels are filled with plugs that afford structural integrity while others of the tunnels remain open. The ends of the filtering element are covered by endplates. Substantially one-half of the open tunnels are axially aligned with openings in the inlet endplate and with imperforate areas in the outlet endplate, and the other open tunnels are axially aligned with openings in the outlet endplate and with imperforate areas in the inlet endplate. Exhaust gases entering tunnels open to the inlet pass through the compact fibrous walls and exit through tunnels open to the outlet.
摘要翻译： 柴油颗粒捕集器具有过滤元件，其是径向填充管状壳体的纤维过滤材料的质量。 过滤元件采用以重复的图案在直线上延伸的高纬纱线，高纬纱线被压实成多个纤维壁，其相交以形成在壳体的轴向或纵向方向上延伸的隧道。 一些隧道充满了可以提供结构完整性的插头，而其他隧道仍保持开放。 过滤元件的端部被端板覆盖。 基本上一半的开放式隧道与入口端板中的开口和出口端板中的无孔区域轴向对准，而另一个开放式隧道与出口端板中的开口和入口端板中的无孔区域轴向对准。 进入入口的隧道的废气通过紧凑的纤维壁通过通向出口的通道的出口。
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