公开(公告)号：US20030010710A1

公开(公告)日：2003-01-16

申请号：US10224264

申请日：2002-08-20

发明人： Edward C. Homonoff ,  John A. Davis ,  Stephen D. Copperwheat ,  Richard W. Mayo ,  Franklin D. Cean

IPC分类号： B01D039/16

CPC分类号： B01D39/163

摘要： A transmission fluid filter material and transmission filter produced therefrom comprising a gradient density composite felt which exhibits high particle removal efficiency at 40 micron diameter particle size and larger with exceptionally high dirt holding capacity and no significant increase in clean pressure drop. The upstream portion of the composite felt contains fine fibers that selectively remove first the fine particles while the downstream portion acts to sieve coarse particles and build a porous filter cake, thereby extending the useful life of the filter.

摘要翻译： 由其制造的透射流体过滤材料和透射过滤器包括梯度密度复合毡，其在40微米直径颗粒尺寸和更大的颗粒去除效率下具有高的除尘效率，并且具有非常高的污垢保持能力并且没有显着增加清洁的压降。 复合毡的上游部分含有细小的纤维，其首先选择性地除去细颗粒，同时下游部分用于筛选粗颗粒并形成多孔滤饼，从而延长过滤器的使用寿命。

公开(公告)号：US20020139099A1

公开(公告)日：2002-10-03

申请号：US10080615

申请日：2002-02-25

申请人： Filtrona Richmond, Inc.

发明人： Richard M. Berger

IPC分类号： B01D039/16

CPC分类号： D01D5/0985 ,  A24D3/064 ,  A24D3/08 ,  D01D4/02 ,  D01D5/082 ,  D01D5/34 ,  D04H1/54 ,  D04H1/56 ,  D04H3/02 ,  Y10S55/05 ,  Y10S55/39 ,  Y10S264/48

摘要： A fiber spinning device and process for manufacturing a web of fibers comprising a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bicomponent fibers can be alternated with monocomponent fibers formed of the same core polymer as used in the bicomponent fibers. Bicomponent fibers having a common core polymer and different sheath polymers can be extruded from alternate spinneret orifices in the same die plate. Multiple distribution plates are provided with surface grooves or depressions to direct polymer materials from independent sources to only selected spinneret openings in an array of spinneret openings while maintaining the polymers segregated from each other. Unique products formed from the improved mixed fiber technology are useful as high efficiency filters in various environments, coalescent filters, reservoirs for marking and writing instruments, wicks and other elements designed to hold and transfer liquids for medical and other applications, heat and moisture exchangers and other diverse fibrous matrices.

公开(公告)号：US20030034296A1

公开(公告)日：2003-02-20

申请号：US09932203

申请日：2001-08-17

发明人： Maurice H. Tremblay ,  Andrew B. Tremblay

IPC分类号： B01D039/16

CPC分类号： B01D39/16 ,  Y10T428/1362 ,  Y10T428/24595 ,  Y10T428/24603 ,  Y10T442/68

摘要： A method of continuously manufacturing tubular filter products includes rotating a mandrel in a first rotational direction, depositing nonwoven fibers on the mandrel to form a tube and continuously withdrawing the tube from the mandrel by engaging a peripheral surface of the tube with one or more detents extending radially from a surface of a roller. The roller rotates in a direction opposite the first rotational direction as the one or more detents engage the tube to a predetermined depth relative. For carrying out such a method, an apparatus includes a melt blowing die assembly for expelling melt blown fibers, a rotating mandrel arranged to receive the melt blown fibers from the melt blowing die assembly for allowing the melt blown fibers to accumulate in a body thereon and a rotating roll having a pattern of protruding detents. The roll is arranged so that at least some of the detents will come within a predetermined distance of the mandrel for contacting the melt blown fibers in a manner forcing the melt blown fibers accumulated on the mandrel to move in a direction parallel to the mandrel. A tubular filter product includes a plurality of melt blown fibers in a body defining an outer surface and an inner surface, the body defining a pattern of cavities between the outer surface and the inner surface.

摘要翻译： 连续制造管状过滤器产品的方法包括在第一旋转方向上旋转心轴，将非织造纤维沉积在心轴上以形成管并且通过使管的外周表面与一个或多个棘爪延伸而连续地从心轴中取出管 从辊的表面径向延伸。 当一个或多个棘爪将管接合到预定深度相对时，辊沿着与第一旋转方向相反的方向旋转。 为了实施这种方法，一种装置包括用于排出熔喷纤维的熔喷模具组件，旋转芯棒，其布置成从熔喷模具组件接收熔喷纤维，以使熔喷纤维在其上堆积， 具有突出棘爪图案的旋转辊。 轧辊被布置成使得至少一些棘爪将落入心轴的预定距离内，以使得熔融吹塑纤维以使得聚集在心轴上的熔喷纤维沿平行于心轴的方向移动的方式接触。 管状过滤器产品包括限定外表面和内表面的主体中的多个熔喷纤维，该主体在外表面和内表面之间限定空腔图案。

公开(公告)号：US20020134063A1

公开(公告)日：2002-09-26

申请号：US10080551

申请日：2002-02-25

申请人： Filtrona Richmond, Inc.

发明人： Richard M. Berger

IPC分类号： B01D039/16

CPC分类号： D01D5/0985 ,  A24D3/064 ,  A24D3/08 ,  D01D4/02 ,  D01D5/082 ,  D01D5/34 ,  D04H1/54 ,  D04H1/56 ,  D04H3/02 ,  Y10S55/05 ,  Y10S55/39 ,  Y10S264/48

摘要： A fiber spinning device and process for manufacturing a web of fibers comprising a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bicomponent fibers can be alternated with monocomponent fibers formed of the same core polymer as used in the bicomponent fibers. Bicomponent fibers having a common core polymer and different sheath polymers can be extruded from alternate spinneret orifices in the same die plate. Multiple distribution plates are provided with surface grooves or depressions to direct polymer materials from independent sources to only selected spinneret openings in an array of spinneret openings while maintaining the polymers segregated from each other. Unique products formed from the improved mixed fiber technology are useful as high efficiency filters in various environments, coalescent filters, reservoirs for marking and writing instruments, wicks and other elements designed to hold and transfer liquids for medical and other applications, heat and moisture exchangers and other diverse fibrous matrices.

公开(公告)号：US20040172930A1

公开(公告)日：2004-09-09

申请号：US10379467

申请日：2003-03-03

发明人： Ledu Q. Nguyen

IPC分类号： B01D039/16

CPC分类号： F02M35/024 ,  B01D29/012 ,  B01D29/016 ,  B01D39/1623 ,  B01D46/0001 ,  B01D46/10 ,  B01D46/521 ,  B01D2239/0622 ,  B01D2239/069 ,  B01D2239/10 ,  D04H1/56 ,  D04H1/72 ,  D04H3/03 ,  D04H3/07 ,  D04H3/16 ,  F02M35/02 ,  Y10S55/05 ,  Y10S264/48

摘要： The present invention involves using a melt-blowing process to make a filter medium defining pores having a pore size of between 3 and 12 microns. The filter medium is made of a thermoplastic polymer and is adapted for use in an internal combustion engine air filter. A profile is used in the melt-blowing process to mold melt blown fibers into the filter medium.

摘要翻译： 本发明涉及使用熔喷法来制备具有孔径在3和12微米之间的孔的过滤介质。 过滤介质由热塑性聚合物制成，适用于内燃机空气过滤器。 在熔喷过程中使用型材将熔喷纤维模制成过滤介质。

公开(公告)号：US20040144716A1

公开(公告)日：2004-07-29

申请号：US10475973

申请日：2003-10-27

发明人： Masaki Kobayashi ,  Hirokazu Suzuki

IPC分类号： B01D039/16

CPC分类号： B01D39/163 ,  B01D39/1623 ,  F16H57/0404 ,  F16H57/0452 ,  Y10T442/2902

摘要： A filter element (30) which has a filtering medium (31) formed by ruffling a fiber sheet and a resin frame (32) surrounding the perimeter of the filtering medium (31); and a filtering medium (31) which comprises a fiber sheet comprising a heat-resistant fiber having a melting temperature or a carbonization temperature of 300null C. or higher. As the heat-resistant fiber, use can be made of a meta-type or para-type wholly aromatic polyamide fiber, a wholly aromatic polyester fiber, a polyphenylene sulfide fiber, or a polyamideimide fiber. As a fiber constituting the fiber sheet except the heat-resistant fiber, use can be made of a fiber having a softening point of 150null C. or higher such as a polyamide based fiber, a polyester based fiber, an acrylic fiber, or a vinylon fiber. Preferably, the heat-resistant fiber accounts for 3 mass % or more of the fiber sheet The filtering medium is suppressed in the reduction of bursting strength during use and causes no substantial problems in practical use.

摘要翻译： 1.一种过滤元件（30），其具有通过使纤维片起皱而形成的过滤介质（31）和围绕所述过滤介质（31）的周边的树脂框架（32）。 以及包含具有熔融温度或碳化温度为300℃以上的耐热纤维的纤维片材的过滤介质（31）。 作为耐热纤维，可以使用间位型或对位型全芳香族聚酰胺纤维，全芳香族聚酯纤维，聚苯硫醚纤维或聚酰胺酰亚胺纤维。 作为构成除了耐热纤维以外的纤维片的纤维，可以使用软化点为150℃以上的纤维，例如聚酰胺类纤维，聚酯类纤维，丙烯酸类纤维，或 维纶纤维。 优选的是，耐热纤维占纤维片的3质量％以上在使用过程中，抑制了过滤介质的破裂强度的降低，在实际应用中没有实质性的问题。

公开(公告)号：US20020158007A1

公开(公告)日：2002-10-31

申请号：US09842702

申请日：2001-04-27

发明人： Ju-Lin Li

IPC分类号： B01D039/16

CPC分类号： C02F1/283 ,  C02F1/003 ,  C02F1/285 ,  C02F1/288 ,  C02F2201/006

摘要： A water-purifying filter has a tubular body portion being entirely coated with a polypropylene coating portion during a manufacturing process thereof. The polypropylene coating portion includes a first coating layer bonded to an inner circumferential surface of the tubular body portion when the first coating layer is still viscid, and a second coating layer sprayed onto an outer circumferential surface and two annular end surfaces of the tubular body portion to connect to two ends of the first coating layer. Two ends of the tubular body portion that has been coated by the polypropylene coating portion are sprayed with a waterproof material to form two watertight layers thereat to ensure water to pass both the tubular body portion and the polypropylene coating portion and be filtered and purified twice. The water-purifying filter with such structure does not need costs for storing and assembling separate polypropylene coating and end caps and can therefore be provided at lower cost.

摘要翻译： 水净化过滤器在其制造过程中具有整体涂覆有聚丙烯涂覆部分的管状主体部分。 聚丙烯涂层部分包括当第一涂层仍然是粘性时结合到管状体部分的内圆周表面上的第一涂层，以及喷射到管状体部分的外圆周表面和两个环形端表面上的第二涂层 以连接到第一涂层的两端。 被聚丙烯涂覆部分涂覆的管状本体部分的两端用防水材料喷涂以在其上形成两个水密层，以确保水通过管状主体部分和聚丙烯涂覆部分两者，并被过滤和净化两次。 具有这种结构的净水过滤器不需要用于存储和组装单独的聚丙烯涂层和端盖的成本，因此可以以较低的成本提供。

公开(公告)号：US20020121194A1

公开(公告)日：2002-09-05

申请号：US09990072

申请日：2001-11-21

发明人： Holger Buchwald ,  Karl-Heinz Morweiser ,  Klaus Veeser

IPC分类号： B01D039/16

CPC分类号： D04H1/74 ,  B01D39/163 ,  B32B5/26 ,  B32B27/02 ,  B32B27/32 ,  B32B37/0076 ,  B32B2305/20 ,  B32B2307/204 ,  B32B2307/718 ,  D04H1/4291 ,  D04H1/43 ,  D04H1/4382 ,  D04H1/48 ,  D04H1/492 ,  D04H1/498 ,  D04H1/54 ,  D04H1/541 ,  D04H1/544 ,  D04H1/548 ,  D04H1/555 ,  D04H1/559 ,  D04H1/56 ,  D04H1/72 ,  D04H13/00 ,  Y10S55/02 ,  Y10S55/05 ,  Y10S55/39 ,  Y10S264/48 ,  Y10T442/684

摘要： A process for the manufacture of a triboelectrically charged nonwoven, wherein a fiber blend made of polyacrylnitrile fibers with a titer of null1.7 dtex and of polyolefine fibers with a titer of null1.7 dtex is freed from lubricating agents and antistatic agents by washing, is dried down to a moisture content of

摘要翻译： 一种制造摩擦带电非织造材料的方法，其中由滴定度<= 1.7分特的聚丙烯腈纤维制成的纤维混合物和滴定度为<= 1.7分特的聚烯烃纤维通过洗涤免除润滑剂和抗静电剂， 干燥至水分含量<1重量％，并将其梳理在纵向或随机化的卡片上，以每单位面积单位为15-80克/平方米的质量为摩擦带电的纤维网。 通过两个同时运行的辊和转移辊将该幅材取出，使得幅材在机器方向上放置在输送机上，并且直接粘合在粘合装置内，未粘合的纸幅通过1至3个转印点转发 。

公开(公告)号：US20020116910A1

公开(公告)日：2002-08-29

申请号：US10080616

申请日：2002-02-25

申请人： Filtrona Richmond, Inc.

发明人： Richard M. Berger

IPC分类号： B01D039/16

CPC分类号： D01D5/0985 ,  A24D3/064 ,  A24D3/08 ,  D01D4/02 ,  D01D5/082 ,  D01D5/34 ,  D04H1/54 ,  D04H1/56 ,  D04H3/02 ,  Y10S55/05 ,  Y10S55/39 ,  Y10S264/48

摘要： A fiber spinning device and process for manufacturing a web of fibers comprising a homogeneous mixture of fibers of different characteristics. Monocomponent fibers of different polymers can be extruded side-by-side from the same die system. Sheath/core bicomponent fibers can be alternated with monocomponent fibers formed of the same core polymer as used in the bicomponent fibers. Bicomponent fibers having a common core polymer and different sheath polymers can be extruded from alternate spinneret orifices in the same die plate. Multiple distribution plates are provided with surface grooves or depressions to direct polymer materials from independent sources to only selected spinneret openings in an array of spinneret openings while maintaining the polymers segregated from each other. Unique products formed from the improved mixed fiber technology are useful as high efficiency filters in various environments, coalescent filters, reservoirs for marking and writing instruments, wicks and other elements designed to hold and transfer liquids for medical and other applications, heat and moisture exchangers and other diverse fibrous matrices.

摘要翻译： 一种纤维纺丝装置和用于制造纤维网的方法，其包括具有不同特性的纤维的均匀混合物。 不同聚合物的单组分纤维可以从相同的模具系统并排挤出。 护套/芯双组分纤维可以与由双组分纤维中使用的相同芯聚合物形成的单组分纤维交替。 具有共同的芯聚合物和不同的鞘聚合物的双组分纤维可以在相同的模板中从另外的喷丝板孔挤出。 多个分配板设置有表面凹槽或凹陷，以将聚合物材料从独立的来源引导到喷丝头开口阵列中的选定的喷丝孔，同时保持聚合物彼此分离。 由改进的混合纤维技术形成的独特产品可用作各种环境中的高效过滤器，聚结过滤器，用于标记和书写工具的储存器，灯芯和其他用于保存和转移用于医疗和其他应用的液体的元件，热交换器和湿气交换器 其他各种纤维基质。

公开(公告)号：US20040035095A1

公开(公告)日：2004-02-26

申请号：US10386887

申请日：2003-03-12

申请人： HOLLINGSWORTH & VOSE COMPANY

发明人： David Thomas Healey

IPC分类号： B01D046/00 ,  B01D039/16

CPC分类号： B01D39/1623 ,  Y10S55/05 ,  Y10S55/39 ,  Y10S264/48 ,  Y10T428/249962 ,  Y10T428/249964 ,  Y10T428/249978 ,  Y10T428/268 ,  Y10T428/2904 ,  Y10T428/2913 ,  Y10T428/2929

摘要： A filter media comprising a synthetic microfiber polymer fine fiber web wherein the diameter of the fibers is between about 0.8 to about 1.5 microns. The filter media is acceptable for use in ASHRAE applications. Constructions with a low DP backing, support or prefilter layers of coarse fiber provide large area filter webs of high efficiency and a stable and high threshold value of alpha above eleven.

摘要翻译： 一种包含合成微纤维聚合物细纤维网的过滤介质，其中纤维的直径在约0.8至约1.5微米之间。 过滤介质可用于ASHRAE应用。 具有低DP背衬，支撑或预过滤层的粗纤维的结构提供高效率的大面积过滤网，并且具有高于11的α的稳定和高阈值。