公开(公告)号：US20220203278A1

公开(公告)日：2022-06-30

申请号：US17696872

申请日：2022-03-17

申请人： FUJIFILM Corporation

发明人： Yosuke NAKAGAWA ,  Yasuhisa SHIMODA ,  Kazuhide KANEMURA

IPC分类号： B01D39/18 ,  D04H1/425 ,  D04H1/728

摘要： A nonwoven fabric is formed of fibers of 0.10 μm or more and 5.00 μm or less. The nonwoven fabric includes a coarse layer portion and a dense layer portion. In the coarse layer portion, a void volume Pc is at least 90% and an average pore diameter Dc is in a range of 0.5 μm or more and 50 μm or less. In the dense layer portion, a void volume Pd is at least 70% and a relative standard deviation of pore diameter distribution is 20% or less.

公开(公告)号：US11351491B2

公开(公告)日：2022-06-07

申请号：US16668887

申请日：2019-10-30

申请人： KX Technologies LLC

发明人： Jinwen Wang ,  Meedia Kareem ,  Rezan Kareem ,  William Li ,  Bruce E. Taylor ,  Carol DeLandra ,  Frank A. Brigano

IPC分类号： D21H11/18 ,  D21H17/63 ,  D21H17/67 ,  D21H17/37 ,  D21H21/36 ,  D21F1/14 ,  B01D39/18 ,  C02F1/50 ,  C02F1/28 ,  B01D39/16 ,  C02F1/00 ,  C02F101/20

摘要： A filter media having lignite-derived activated carbon, polyacrylic acid (PAA), a commercially available copper-zinc alloy, and polydiallyldimethylammonium chloride (PolyDADMAC) or Luviquat®, which is Poly[(3-methyl-1-vinylimidazolium chloride)-co-(1-vinylpyrrolidone)], combined and used as suitable replacement for TOG bituminous coal-based activated carbon, silver, and PolyDADMAC. Functional groups in lignite-based activated carbon interact with the polyacrylic acid. Functional groups such as calcium, iron, or aluminum oxide/hydroxide of lignite-based activated carbon interact with PAA, and help hold the PolyDADMAC in place. The additional presence of a copper-zinc alloy enhances the filter anti-microbiological performance.

公开(公告)号：US20220118386A1

公开(公告)日：2022-04-21

申请号：US17562220

申请日：2021-12-27

申请人： Cummins Filtration IP, Inc.

发明人： Barry Mark VERDEGAN ,  Billy M. BATES ,  Mark T. WIECZOREK ,  Cliffton J. BURBRINK ,  Kevin C. SOUTH ,  Ismail C. BAGCI ,  Gregory W. HOVERSON ,  Zemin JIANG ,  Wassem ABDALLA ,  Joshua Ryan HENDRIXSON ,  Scott W. SCHWARTZ

IPC分类号： B01D36/00 ,  B01D25/26 ,  B01D27/04 ,  B01D29/07 ,  B01D39/08 ,  B01D39/12 ,  B01D39/16 ,  B01D39/18 ,  B01D39/20 ,  B01D46/52

摘要： A filter assembly comprises a filter housing defining an internal volume having an inner cross-section defining an inner cross-sectional distance, the filter housing having a base and a sidewall. A filter element is disposed within the internal volume. The filter element comprises a filter media pack at least a portion of which has an outer cross-section defining an outer cross-sectional distance that is substantially equal to the inner cross-sectional distance of the internal volume of the filter housing. A support structure is coupled to at least one longitudinal end of the filter media pack.

公开(公告)号：US11266935B2

公开(公告)日：2022-03-08

申请号：US16442480

申请日：2019-06-15

申请人： MANN+HUMMEL GmbH

发明人： Jens Neumann ,  Heiko Brosi

IPC分类号： B01D39/18 ,  B01D39/16

摘要： A filter medium has a substrate layer and a nanofiber layer arranged on the substrate layer. Adhesive fibers are laid onto the nanofiber layer and connect the nanofiber layer with the substrate layer. The nanofiber layer is located between the substrate layer and the adhesive fibers.

公开(公告)号：US20220023784A1

公开(公告)日：2022-01-27

申请号：US16936826

申请日：2020-07-23

申请人： Hollingsworth & Vose Company

发明人： Ibrahim Hassounah ,  Narendiran Vitchuli ,  Abdoulaye Doucouré ,  Sneha Swaminathan

IPC分类号： B01D39/16 ,  B01D39/18

摘要： Filter media comprising polyethersulfone, related components, and related methods are generally described.

公开(公告)号：US11185806B2

公开(公告)日：2021-11-30

申请号：US16261244

申请日：2019-01-29

申请人： AHLSTROM-MUNKSJÖ OYJ ,  DONALDSON COMPANY, INC.

发明人： Kevin R. Schouweiler ,  Kent Williamson ,  Kristin Amsden ,  Steven D. Schmeichel

IPC分类号： B01D39/16 ,  B01D39/18

摘要： A filtration media with improved filtration, strength, tear resistance and air permeability in the form of a relatively thin and lightweight wet-laid fibrous web that has a wet Mullen ratio of 60% to 80% to ensure that the media is flexible enough to be formed into a fluted structure, and strong enough to retain the fluted structure when wound into a roll and to permit further processing without the media becoming too brittle. The filtration media comprises a blend of cellulose and synthetic fibers having a weight percent of 81 wt % to 87 wt % of a weight of the media and a resin binder having a weight of 13 wt % to 19 wt % (preferably about 16 wt %) of the weight of the media.

公开(公告)号：US20210316230A1

公开(公告)日：2021-10-14

申请号：US16846154

申请日：2020-04-10

申请人： AerosourceH, LLC

发明人： Charles A. Hall

IPC分类号： B01D15/10 ,  B01D11/02 ,  B01D39/18 ,  B01D35/147 ,  A61K36/185 ,  C11B1/04

摘要： Infused oil polishing systems and methods reduce or remove chlorophyll from bulk biomass saturated ethanol. A processing vessel includes a valved input port for receiving a biomass mixture and a valved output port for expelling a polished mixture containing the desired extract. The vessel is pressurized or evacuated, causing the chlorophyll-containing carbon to be trapped by the filter assembly as the desired extract mixture is discharged. The equipment operates at relatively low pressures of 40 psi or less, and one operator can run multiple units. The end user can control the degree of polishing by adjusting the amount of media used and resident time. The basic apparatus can also be modified to run in parallel or series combinations to increase throughput. An optional elevating rack provides for ease of cleaning, and no expensive ancillary equipment needs to be purchased.

公开(公告)号：US20210154607A1

公开(公告)日：2021-05-27

申请号：US17048253

申请日：2019-04-16

申请人： Ahlstrom-Munksjö Oyj

发明人： Jesse SHIM ,  Melissa KANG ,  Jun KIM ,  Xiling ZENG ,  Kauter LIU

IPC分类号： B01D39/18 ,  B01D39/16 ,  B23H1/10

摘要： Fibrous filtration media and methods of making and using the same are provided whereby the media includes a wet-laid nonwoven fibrous web having from about 20 wt. % to about 80 wt. %, based on total weight of fibrous web, of bicomponent staple fibers, and from about 10 wt. % to about 50 wt. %, based on total weight of the fibrous web, of fibrillated lyocell staple fibers. The fibrous web exhibits a wet burst strength of greater than 3 bar, for example between about 3 bar to about 6 bar and is especially suitable for use in filtering process fluids (e.g., water) associated with wire electron discharge machining (WEDM).

公开(公告)号：US20210070976A1

公开(公告)日：2021-03-11

申请号：US16562546

申请日：2019-09-06

申请人： NEENAH GESSNER GMBH

发明人： Urs Fabian Fritze ,  Werner Hörl ,  Andreas Demmel

IPC分类号： C08L33/02 ,  C08J5/04 ,  B01D39/16 ,  B01D39/18

摘要： The present invention relates to a resin binder composition, a filter medium comprising the resin binder composition as well as related methods and uses.

公开(公告)号：US20210001258A1

公开(公告)日：2021-01-07

申请号：US17027378

申请日：2020-09-21

申请人： Baldwin Filters, Inc.

发明人： Timothy L. Krull ,  Michael J. Von Seggern ,  Jeffrey E.D. Rogers

IPC分类号： B01D46/00 ,  B01D46/10 ,  B01D46/52 ,  F02M35/024 ,  B01D39/18

摘要： A filter media block and filter element incorporating same are provided. Methods of forming a filter media block and filter element are also provided. The filter media block includes a block of filter media and an outer permeable layer. The outer layer provides support for the block of filter media.