DE272841T1 - Filtermaterial. - Google Patents

Filtermaterial.

Info

Publication number
DE272841T1
DE272841T1 DE198787310825T DE87310825T DE272841T1 DE 272841 T1 DE272841 T1 DE 272841T1 DE 198787310825 T DE198787310825 T DE 198787310825T DE 87310825 T DE87310825 T DE 87310825T DE 272841 T1 DE272841 T1 DE 272841T1
Authority
DE
Germany
Prior art keywords
porous polymeric
medium
porous
polymeric
substance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE198787310825T
Other languages
English (en)
Inventor
Thomas C. Glen Cove New York 11542 Gsell
Original Assignee
Fall Corp., Glen Cove, N.Y.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25483296&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE272841(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fall Corp., Glen Cove, N.Y. filed Critical Fall Corp., Glen Cove, N.Y.
Publication of DE272841T1 publication Critical patent/DE272841T1/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/36—After-treatment
    • C08J9/40—Impregnation
    • C08J9/405—Impregnation with polymerisable compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/38—Graft polymerization
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro
    • Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/31739—Nylon type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Transplantation (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Graft Or Block Polymers (AREA)

Claims (11)

Patentanspruch e
1. Ein poröses polymeres Medium mit einer geringen Affinität für Amidgruppen enthaltende Stoffe, enthaltend:
- ein poröses polymeres Substrat, und
- einen oberflächenmodifizierenden polymeren Stoff mit einer geringen Affinität für Amidgruppen enthaltende Stoffe, wobei der oberflächenmodifizierende polymere Stoff in situ an der Oberfläche des porösen polymeren Substrats gebildet wird und damit kovalent verbunden ist, und wobei der oberflächenmodifizierende polymere Stoff aus einem mindestens eine Hydroxylgruppe aufweisenden monofunktionalen Monomer gebildet ist.
2. Das poröse polymere Medium nach Anspruch 1, dadurch gekennzeichnet, daß das poröse polymere Substrat einen Stoff mit C-H Bindungen enthält, die unter Einfluß von ionisierender Bestrahlung Radikale bilden können.
3. Das poröse polymere Medium nach Anspruch 1, dadurch gekennzeichnet, daß das poröse polymere Substrat ein Polyamid enthält.
4. Das poröse polymere Medium nach Anspruch 3, dadurch gekennzeichnet, daß das Polyamid Nylon 66 ist.
5. Das poröse polymere Medium nach Anspruch 1, dadurch gekennzeichnet, daß die poröse polymere Membran einen hyrophilen Stoff enthält.
6. Das poröse polymere Medium nach Anspruch 1, dadurch gekennzeichnet, daß der polymere Stoff einen Stoff enthält, der an anhängenden Hydroxylgruppen reich ist.
7. Das poröse polymere Medium nach Anspruch 1, dadurch
gekennzeichnet, daß das poröse polymere Substrat und das Medium mikroporös sind.
8. Das poröse polymere Medium nach Anspruch 1, dadurch gekennzeichnet, daß das den oberflächenmodifizierenden polymeren Stoff bildende Monomer eine ethylenisch ungesättigte Verbindung enthält.
9. Das poröse polymere Medium nach Anspruch 1, dadurch gekennzeichnet, daß der Amidgruppen enthaltende Stoff eiweißartige Stoffe umfasst.
10. Das poröse polymere Medium nach Anspruch 9, dadurch gekennzeichnet, daß das Medium eine Adsorptionsfähigkeit für eiweißartigen Stoff von weniger als 100 Mikrogramm pro QuadratZentimeter gemessen nach dem Bovine Serum Albumin Adsorptionstest hat.
11. Verfahren zur Herstellung eines porösen polymeren Mediums mit einer geringen Sorptionsfähigkeit für Amidgruppen enthaltende Stoffe, in dem man
ein poröses polymeres Substrat mit einer Lösung in Berührung bringt, die eine monofunktionelle monomere Verbindung enthält, die mindestens eine Hydroxylgruppe hat und die ein Polymer bilden
kann, das eine geringe Affinität für Amidgruppen enthaltende Stoffe aufweist; und
das polymere Substrat und die monomere Verbindung mit ionisierender Strahlung bestrahlt,um eine Polymerisation der monomeren Verbindung an der Oberfläche des Substrats herbeizuführen und das Medium zu bilden.
DE198787310825T 1986-12-23 1987-12-09 Filtermaterial. Pending DE272841T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/945,569 US4906374A (en) 1986-12-23 1986-12-23 Filtration media with low protein adsorbability

Publications (1)

Publication Number Publication Date
DE272841T1 true DE272841T1 (de) 1989-11-16

Family

ID=25483296

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8787310825T Revoked DE3779075D1 (de) 1986-12-23 1987-12-09 Filtermaterial.
DE198787310825T Pending DE272841T1 (de) 1986-12-23 1987-12-09 Filtermaterial.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8787310825T Revoked DE3779075D1 (de) 1986-12-23 1987-12-09 Filtermaterial.

Country Status (7)

Country Link
US (1) US4906374A (de)
EP (1) EP0272841B1 (de)
JP (1) JPH0767527B2 (de)
KR (1) KR960000655B1 (de)
CA (1) CA1323855C (de)
DE (2) DE3779075D1 (de)
GB (1) GB2199331B (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019260A (en) * 1986-12-23 1991-05-28 Pall Corporation Filtration media with low protein adsorbability
NO173366C (no) * 1987-11-02 1993-12-08 Tokyo Bi Tech Lab Inc Membran av hule fibre for rensing av blod, framgangsm}te for rensing av blod, og apparat for rensing av blod
US4959150A (en) * 1988-09-26 1990-09-25 Pall Corporation Fluid treatment system having low affinity for proteinaceous materials
EP0371178A1 (de) * 1988-12-01 1990-06-06 Tokyo Bi-Tech Laboratories Inc Verfahren zur Herstellung einer Vorrichtung zur Blutreinigung mit Hohlfasermebranen
US5580650A (en) * 1989-12-29 1996-12-03 The Dow Chemical Company Process of preparing a composite membrane
US5053133A (en) * 1990-02-09 1991-10-01 Elias Klein Affinity separation with activated polyamide microporous membranes
US5151192A (en) * 1990-07-13 1992-09-29 Pall Corporation Method for removing heparin from blood or plasma
US5536413A (en) * 1990-12-03 1996-07-16 Pall Corporation Method for treating a parenteral emulsion-containing medicament fluid
US5252222A (en) * 1990-12-03 1993-10-12 Pall Corporation Filter for parenteral systems and method of using thereof
US5128041A (en) * 1991-05-15 1992-07-07 Pall Corporation Microporous membrane, method of manufacture, and method of use
GB2275471A (en) * 1993-02-11 1994-08-31 Pall Corp Membrane having a complex of a complementary binding pair immobilised thereon
JP2924547B2 (ja) * 1993-03-19 1999-07-26 日産自動車株式会社 内燃機関の空燃比制御装置
CA2128296A1 (en) * 1993-12-22 1995-06-23 Peter John Degen Polyvinylidene fluoride membrane
KR100378500B1 (ko) * 1994-07-28 2003-05-22 밀리포어 코포레이션 복합다공성막및형성방법
US6612447B1 (en) 2000-07-24 2003-09-02 Baxter International Inc. Blood collection systems and filters using a porous membrane element
DE60236696D1 (de) * 2001-04-27 2010-07-22 Millipore Corp Neue beschichtete Membranen und andere Artikel
AU2002304623A1 (en) * 2001-05-11 2002-11-25 Poly-An Gesellschaft Zur Herstellung Von Polymeren Fur Spezielle Anwendungen Und Analytik Mbh Method for reducing an adsorption tendency of molecules or biological cells on a material surface
US7073671B2 (en) * 2002-06-07 2006-07-11 Millipore Corporation Microporous membrane substrate having caustic stable, low protein binding surface
KR101066474B1 (ko) 2003-12-29 2011-09-21 엘지디스플레이 주식회사 액정표시장치의 구동장치 및 구동방법
US8132676B2 (en) * 2008-08-18 2012-03-13 Emd Millipore Corporation Hydrophilic, high protein binding, low fluorescence, western blotting membrane
US8337701B2 (en) 2011-03-14 2012-12-25 Pall Corporation Intravenous filter
US8440085B2 (en) 2011-06-06 2013-05-14 Pall Corporation Plasma separation
US20130264277A1 (en) 2012-04-04 2013-10-10 Pall Corporation Antimicrobial filter

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382090A (en) * 1965-05-19 1968-05-07 Scott Paper Co Process of making hydrophilic polyurethane foam body
US3450614A (en) * 1965-10-13 1969-06-17 Scott Paper Co Vinyl graft copolymerization with a polyurethane substrate in the presence of ultra-violet light
US3524546A (en) * 1967-10-11 1970-08-18 Du Pont Permeation separation with acidgrafted nylon membranes
DE1795378C3 (de) * 1968-09-21 1974-04-18 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Polymerisaten mit faseriger und poriger Struktur
US3673127A (en) * 1969-10-20 1972-06-27 Gen Electric Ultrafine porous polymer article and method of making
SE360665B (de) * 1970-04-29 1973-10-01 Pharmacia Fine Chemicals Ab
GB1417396A (en) * 1972-01-12 1975-12-10 Ici Ltd Asymmetric membranous articles and methods for their manufacture
US3826678A (en) * 1972-06-06 1974-07-30 Atomic Energy Commission Method for preparation of biocompatible and biofunctional materials and product thereof
US3969548A (en) * 1973-01-15 1976-07-13 Universal Oil Products Company Method for forming a semi-permeable strip
FR2250793B1 (de) * 1973-11-09 1978-12-29 Commissariat Energie Atomique
SE441143B (sv) * 1976-09-02 1985-09-16 Hoechst Ag Membranenhet och anordning for avlegsnande av metaboliter ur blod
DE2722025A1 (de) * 1977-05-16 1978-11-30 Hoechst Ag Membraneinheit, vorrichtung mit membraneinheit und verfahren zur blutreinigung
US4346142A (en) * 1979-09-04 1982-08-24 Celanese Corporation Hydrophilic monomer treated microporous films and process
DE3032380A1 (de) * 1979-09-04 1981-03-19 Celanese Corp., 10036 New York, N.Y. Verfahren zur herstellung hydrophiler mikroporoeser folien
JPS5727102A (en) * 1980-07-28 1982-02-13 Nitto Electric Ind Co Ltd Composite semipermeable membrane and its production
US4473474A (en) * 1980-10-27 1984-09-25 Amf Inc. Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid
US4673504A (en) * 1980-10-27 1987-06-16 Cuno Inc. Charge modified microporous membrane
EP0057065B1 (de) * 1981-01-27 1984-05-16 Imperial Chemical Industries Plc Herstellung einer Kationenaustauschermembran und diese Membran enthaltende Elektrolysezelle
JPS57156003A (en) * 1981-03-23 1982-09-27 Unitika Ltd Polyamide film of superior selective permeability and its production
US4473475A (en) * 1981-05-29 1984-09-25 Amf Inc. Charge modified microporous membrane, process for charge modifying said membrane, and process for filtration of fluids
US4707266A (en) * 1982-02-05 1987-11-17 Pall Corporation Polyamide membrane with controlled surface properties
IL65438A (en) * 1982-04-06 1984-12-31 Israel Atomic Energy Comm Synthetic wound covering
CS248505B1 (en) * 1983-06-23 1987-02-12 Marie Tlustakova Method of biocompatible layer production on surface of porous synthetic sorbents' particles
US4483771A (en) * 1983-08-08 1984-11-20 Elizabeth Koch Multi-layer filter
DE3337763A1 (de) * 1983-10-18 1985-05-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Verfahren und vorrichtung zur oberflaechenmodifizierung der poreninnenwaende von membranen
US4604208A (en) * 1983-12-29 1986-08-05 Chaokang Chu Liquid filtration using an anionic microporous membrane
US4618533A (en) * 1984-11-30 1986-10-21 Millipore Corporation Porous membrane having hydrophilic surface and process
US4774132A (en) * 1986-05-01 1988-09-27 Pall Corporation Polyvinylidene difluoride structure
JPS62262705A (ja) * 1986-05-07 1987-11-14 Agency Of Ind Science & Technol 親水性多孔質膜、その製造方法およびこの親水性多孔質膜を用いた血漿分離装置
JPH07121345B2 (ja) * 1986-06-20 1995-12-25 旭化成工業株式会社 非吸着性親水性半透膜およびその製造方法

Also Published As

Publication number Publication date
KR960000655B1 (ko) 1996-01-11
KR880007611A (ko) 1988-08-27
CA1323855C (en) 1993-11-02
EP0272841A3 (en) 1988-11-30
US4906374A (en) 1990-03-06
JPH0767527B2 (ja) 1995-07-26
EP0272841A2 (de) 1988-06-29
GB2199331B (en) 1990-07-11
DE3779075D1 (de) 1992-06-17
JPS63302908A (ja) 1988-12-09
EP0272841B1 (de) 1992-05-13
GB8728756D0 (en) 1988-01-27
GB2199331A (en) 1988-07-06

Similar Documents

Publication Publication Date Title
DE272841T1 (de) Filtermaterial.
US3892665A (en) Membrane method and product
DE69012912T2 (de) Membran mit einer hydrophilen Oberfläche.
DE60217845T2 (de) Beschichtete membranen
DE69025287T2 (de) Filtermedien mit niedriger Adsorptionsfähigkeit für Proteine
DE3782394T2 (de) Immobilisiertes, physiologisch aktives material.
CA2030199C (en) Polymeric microfiber filter medium
EP0099699B1 (de) Filtermaterial aus polymeren Mikrofasern, seine Herstellung und Verwendung
DE3873899T2 (de) Zusammengesetzter artikel fuer die chromatographie.
Mizutani Structure of ion exchange membranes
US4765897A (en) Polyamide membranes useful for water softening
DE60035627T2 (de) Positiv geladene Membran
DE272842T1 (de) Filtermembranen.
DE69727613T2 (de) Verfahren zur Herstellung von porösem Material
DE60012311T2 (de) Negativ geladene membranen
US5770631A (en) Production process of connected microgel particles and articles treated with connected microgel particles
DE2503774A1 (de) Verfahren zur herstellung von ionenaustauschern aus hydrophilen polymeren gelen
US4824574A (en) Novel water softening process using membranes
EP0216622A3 (de) Mikroporöse Mehrschichtenmembran
DE69207972D1 (de) Verfahren zur Herstellung von Gegenständen aus einem Verbundwerkstoff mit Aluminiumoxidmatrix
DE3834217C2 (de) Semipermeable Membran und Verfahren zu deren Herstellung
Mizutani et al. Studies on ion‐exchange membranes. XXXII. Heterogeneity in ion‐exchange membranes
DE2346659A1 (de) Umkehrosmosemembran und verfahren zu deren herstellung
DE2725477A1 (de) Verfahren zum benetzbarmachen der oberflaeche wasserabstossender kunststoffe bzw. verfahren zur hydrophylierung der oberflaeche hydrophober polymerer traeger
DE07002457T1 (de) Poröse Medien