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    NANOFIBER CONTAINING COMPOSITE STRUCTURES
    1.
    发明申请
    NANOFIBER CONTAINING COMPOSITE STRUCTURES 审中-公开
    含有纳米纤维的复合结构

    公开(公告)号：WO2012135679A3

    公开(公告)日：2013-03-14

    申请号：PCT/US2012031549

    申请日：2012-03-30

    Applicant: EMD MILLIPORE CORP ,  KAS ONUR Y ,  KOZLOV MIKHAL ,  TKACIK GABRIEL ,  NHIEM DAVID ,  LEON SHERRY ASHBY

    Inventor： KAS ONUR Y ,  KOZLOV MIKHAL ,  TKACIK GABRIEL ,  NHIEM DAVID ,  LEON SHERRY ASHBY

    IPC: B01D69/12 ,  B01D69/00 ,  B01D69/10 ,  B01D71/06 ,  D01D5/00

    CPC classification number: B01D69/12 ,  B01D71/56 ,  B01D2323/39 ,  B01D2325/02 ,  D01D5/0084

    Abstract: A composite liquid filtration platform including a composite filtration medium featuring an electrospun polymeric nanofiber layer collected on a porous membrane. When in use, the porous membrane acts as a prefilter used upstream from the polymeric nanofiber layer to remove particles from a liquid stream flowing through the composite filtration structure. The nanofiber layer, positioned downstream from the porous membrane, is used as the retentive layer for critical filtration to provide biosafety assurance, and is responsible for capturing microorganisms like bacteria, mycoplasma or viruses. The composite liquid filtration platform provided herein exhibits permeability advantages over conventional porous membranes or nanofiber mats spun on coarse non-wovens.

    Abstract translation: 一种复合液体过滤平台，其包括复合过滤介质，其特征在于在多孔膜上收集的电纺聚合物纳米纤维层。 当使用时，多孔膜用作在聚合物纳米纤维层上游使用的预过滤器，以从流过复合过滤结构的液体流中除去颗粒。 位于多孔膜下游的纳米纤维层用作临界过滤的保留层，以提供生物安全保证，并负责捕获细菌，支原体或病毒等微生物。 本文提供的复合液体过滤平台相对于在粗糙无纺布上纺出的常规多孔膜或纳米纤维垫表现出渗透性优点。

    NANOFIBER CONTAINING COMPOSITE STRUCTURES
    3.
    发明申请
    NANOFIBER CONTAINING COMPOSITE STRUCTURES 审中-公开
    纳米纤维含复合结构

    公开(公告)号：WO2012135679A9

    公开(公告)日：2013-01-24

    申请号：PCT/US2012031549

    申请日：2012-03-30

    Applicant: EMD MILLIPORE CORP ,  KAS ONUR Y ,  KOZLOV MIKHAL ,  TKACIK GABRIEL ,  NHIEM DAVID ,  LEON SHERRY ASHBY

    Inventor： KAS ONUR Y ,  KOZLOV MIKHAL ,  TKACIK GABRIEL ,  NHIEM DAVID ,  LEON SHERRY ASHBY

    IPC: B01D69/12 ,  B01D69/00 ,  B01D69/10 ,  B01D71/06 ,  D01D5/00

    CPC classification number: B01D69/12 ,  B01D71/56 ,  B01D2323/39 ,  B01D2325/02 ,  D01D5/0084

    Abstract: A composite liquid filtration platform including a composite filtration medium featuring an electrospun polymeric nanofiber layer collected on a porous membrane. When in use, the porous membrane acts as a prefilter used upstream from the polymeric nanofiber layer to remove particles from a liquid stream flowing through the composite filtration structure. The nanofiber layer, positioned downstream from the porous membrane, is used as the retentive layer for critical filtration to provide biosafety assurance, and is responsible for capturing microorganisms like bacteria, mycoplasma or viruses. The composite liquid filtration platform provided herein exhibits permeability advantages over conventional porous membranes or nanofiber mats spun on coarse non-wovens.

    Abstract translation: 一种复合液体过滤平台，包括以多孔膜上收集的电纺聚合物纳米纤维层为特征的复合过滤介质。 当使用时，多孔膜用作在聚合物纳米纤维层上游使用的预过滤器，以从流过复合过滤结构的液体流中去除颗粒。 位于多孔膜下游的纳米纤维层被用作关键过滤的保留层，以提供生物安全保证，并负责捕获细菌，支原体或病毒等微生物。 本文提供的复合液体过滤平台显示出优于常规的在粗糙非织造物上纺成的多孔膜或纳米纤维垫的渗透性优点。

    Estructuras compuestas que contienen nanofibras
    5.
    发明专利
    Estructuras compuestas que contienen nanofibras 未知

    公开(公告)号：ES2886043T3

    公开(公告)日：2021-12-16

    申请号：ES12765651

    申请日：2012-03-30

    Applicant: EMD MILLIPORE CORP

    Inventor： KAS ONUR Y ,  KOZLOV MIKHAIL ,  TKACIK GABRIEL ,  NHIEM DAVID ,  LEON SHERRY ASHBY ,  GODDARD PHILIP

    IPC: B01D69/12 ,  B01D69/00 ,  B01D69/10 ,  B01D71/06 ,  B01D71/56 ,  D01D5/00

    Abstract: Un medio compuesto poroso, caracterizado porque el medio compuesto poroso comprende: un prefiltro de membrana asimétrica porosa preparado por inversión de fase y que comprende un lado estrecho, un lado abierto y un tamaño de poro que aumenta de tamaño entre el lado estrecho y el lado abierto y una capa retentiva de nanofibras poliméricas electrohiladas porosas ubicada en el lado estrecho de la membrana, en donde las nanofibras electrohiladas tienen un diámetro promedio de fibra de 10 nm a 150 nm y la capa retentiva de nanofibras poliméricas electrohiladas porosas tiene un tamaño medio de poro que varía de 0,05 μm a 1 μm, una porosidad que varía de 80 % a 95 % y un grosor que varía de 1 μm a 100 μm, en donde el diámetro promedio de fibra de las nanofibras electrohiladas, la porosidad y el grosor de la capa retentiva de nanofibras poliméricas electrohiladas porosas se determinan como se define en la descripción, y el tamaño medio de poro se determina a partir de la medición del punto de burbuja de flujo medio de acuerdo con el procedimiento ASTM Designación E 1294-89, en donde el tamaño de poro de la capa de nanofibras porosas es menor que el tamaño de poro del lado estrecho de la membrana, en donde el tamaño de los poros se mide con la técnica del punto de burbuja de acuerdo con el procedimiento ASTM Designación E1294-89.

    NANOFIBER CONTAINING COMPOSITE STRUCTURES
    6.
    发明专利
    NANOFIBER CONTAINING COMPOSITE STRUCTURES 未知

    公开(公告)号：SG10201605328WA

    公开(公告)日：2016-08-30

    申请号：SG10201605328W

    申请日：2012-03-30

    Applicant: EMD MILLIPORE CORP

    Inventor： KAS ONUR Y ,  KOZLOV MIKHAIL ,  TKACIK GABRIEL ,  NHIEM DAVID ,  LEON SHERRY ASHBY ,  GODDARD PHILIP

    Abstract: A composite liquid filtration platform including a composite filtration medium featuring an electrospun polymeric nanofiber layer collected on a porous membrane. When in use, the porous membrane acts as a prefilter used upstream from the polymeric nanofiber layer to remove particles from a liquid stream flowing through the composite filtration structure. The nanofiber layer, positioned downstream from the porous membrane, is used as the retentive layer for critical filtration to provide biosafety assurance, and is responsible for capturing microorganisms like bacteria, mycoplasma or viruses. The composite liquid filtration platform provided herein exhibits permeability advantages over conventional porous membranes or nanofiber mats spun on coarse non-wovens.

    ENHANCED STABILITY FILTER INTEGRITY TEST
    7.
    发明专利
    ENHANCED STABILITY FILTER INTEGRITY TEST 未知

    公开(公告)号：SG11201803587UA

    公开(公告)日：2018-06-28

    申请号：SG11201803587U

    申请日：2016-09-12

    Applicant: EMD MILLIPORE CORP

    Inventor： GIGLIA SALVATORE ,  NHIEM DAVID

    IPC: G01N15/08 ,  B01D65/10

    Abstract: A method of integrity testing a porous material is disclosed, providing a porous material suitable for filtration to be tested, said porous material having a first surface and a second surface; wetting said porous material with a wetting liquid; providing a gas stream comprising at least first and second gases humidified with said wetting liquid below the saturation vapor pressure of said wetting liquid and wherein said humidified gas stream has a humidity of 50-99%; introducing said gas stream to said first surface of said porous material; causing said first and second gases to flow through said porous material; measuring the concentration of at least one of said first and second gases in the permeate stream exiting said second surface of said porous material; and comparing the measured concentration to a predetermined concentration.

    FILTER STRUCTURE WITH ENHANCED DIRT HOLDING CAPACITY
    9.
    发明专利
    FILTER STRUCTURE WITH ENHANCED DIRT HOLDING CAPACITY 未知

    公开(公告)号：SG10201911354UA

    公开(公告)日：2020-02-27

    申请号：SG10201911354U

    申请日：2015-06-23

    Applicant: EMD MILLIPORE CORP

    Inventor： GIGLIA SAL ,  NHIEM DAVID ,  ASHBY LEON SHERRY ,  TKACIK GABRIEL

    Abstract: A fluid filtration device containing a composite filter media having a coarse porous polymeric nonwoven interlayer located between first and second polymeric fiber containing filter mats. The fiber diameters of the fibers in the first and second filter mats are different from each other, and each filter mat has a different pore size rating. The first and second polymeric fibers in the filter mats can be electrospun nanofibers. The interlayer has a coarser pore size when compared to the either the first or second filter mats, such that the resulting composite media has an increased dirt holding capacity compared to filter layers that are layered directly over each other without the presence of a coarse interlayer therebetween.

    FILTER STRUCTURE WITH ENHANCED DIRT HOLDING CAPACITY
    10.
    发明专利
    FILTER STRUCTURE WITH ENHANCED DIRT HOLDING CAPACITY 未知

    公开(公告)号：SG11201608399QA

    公开(公告)日：2016-11-29

    申请号：SG11201608399Q

    申请日：2015-06-23

    Applicant: EMD MILLIPORE CORP

    Inventor： GIGLIA SAL ,  NHIEM DAVID ,  ASHBY LEON SHERRY ,  TKACIK GABRIEL

    IPC: B01D27/14 ,  B01D29/01 ,  B01D29/05 ,  B01D29/50 ,  B01D29/56

    Abstract: A fluid filtration device containing a composite filter media having a coarse porous polymeric nonwoven interlayer located between first and second polymeric fiber containing filter mats. The fiber diameters of the fibers in the first and second filter mats are different from each other, and each filter mat has a different pore size rating. The first and second polymeric fibers in the filter mats can be electrospun nanofibers. The interlayer has a coarser pore size when compared to the either the first or second filter mats, such that the resulting composite media has an increased dirt holding capacity compared to filter layers that are layered directly over each other without the presence of a coarse interlayer therebetween.

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