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BR8002082A - Folha de meio filtrante, processo para sua preparacao de contaminantes submicrometricos de fluidos biologicos - Google Patents

Folha de meio filtrante, processo para sua preparacao de contaminantes submicrometricos de fluidos biologicos

Info

Publication number
BR8002082A
BR8002082A BR8002082A BR8002082A BR8002082A BR 8002082 A BR8002082 A BR 8002082A BR 8002082 A BR8002082 A BR 8002082A BR 8002082 A BR8002082 A BR 8002082A BR 8002082 A BR8002082 A BR 8002082A
Authority
BR
Brazil
Prior art keywords
submicrometric
contaminants
preparation
biological fluids
media sheet
Prior art date
Application number
BR8002082A
Other languages
English (en)
Inventor
K Hou
E Ostreicher
Original Assignee
Amf Inc
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
Priority claimed from GB7939787A external-priority patent/GB2045828B/en
Application filed by Amf Inc filed Critical Amf Inc
Publication of BR8002082A publication Critical patent/BR8002082A/pt

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/022Filtration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/20Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2068Other inorganic materials, e.g. ceramics
    • B01D39/2072Other inorganic materials, e.g. ceramics the material being particulate or granular
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/20Chemically or biochemically modified fibres
    • D21H11/22Chemically or biochemically modified fibres cationised
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/63Inorganic compounds
    • D21H17/67Water-insoluble compounds, e.g. fillers, pigments
    • D21H17/68Water-insoluble compounds, e.g. fillers, pigments siliceous, e.g. clays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0407Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0414Surface modifiers, e.g. comprising ion exchange groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0471Surface coating material
    • B01D2239/0485Surface coating material on particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1233Fibre diameter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1241Particle diameter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Epidemiology (AREA)
  • Geology (AREA)
  • Biochemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Filtering Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
BR8002082A 1979-04-06 1980-04-02 Folha de meio filtrante, processo para sua preparacao de contaminantes submicrometricos de fluidos biologicos BR8002082A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2756879A 1979-04-06 1979-04-06
GB7939787A GB2045828B (en) 1979-04-06 1979-11-16 Filter and method of making same

Publications (1)

Publication Number Publication Date
BR8002082A true BR8002082A (pt) 1980-12-23

Family

ID=26273580

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8002082A BR8002082A (pt) 1979-04-06 1980-04-02 Folha de meio filtrante, processo para sua preparacao de contaminantes submicrometricos de fluidos biologicos

Country Status (5)

Country Link
US (1) US4305782A (pt)
AU (1) AU532801B2 (pt)
BR (1) BR8002082A (pt)
CA (1) CA1148872A (pt)
DE (1) DE3010581A1 (pt)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4859340A (en) * 1976-03-15 1989-08-22 Cuno, Incorporated Filter sheet
US4645567A (en) * 1980-02-04 1987-02-24 Cuno, Inc. Filter media and method of making same
US4708803A (en) * 1980-10-27 1987-11-24 Cuno Incorporated Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane
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
US4711793A (en) * 1980-10-27 1987-12-08 Cuno Incorporated Process for charge modifying a microphorous membrane
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
US4737291A (en) * 1981-05-29 1988-04-12 Cuno Incorporated Charge modified microporous membrane
US4743418A (en) * 1981-05-29 1988-05-10 Cuno Incorporated Process for charge modifying a microporous membrane
US4404285A (en) * 1981-06-24 1983-09-13 Amf Incorporated Process for preparing a zero standard serum
US4559145A (en) * 1982-06-16 1985-12-17 Amf Incorporated Process for preparing a zero standard serum
US4594158A (en) * 1981-09-03 1986-06-10 Rohm And Haas Filter aid materials bearing anion exchange resins
US4906371A (en) * 1982-05-28 1990-03-06 Cuno, Incorporated Filter element having microporous membrane
EP0096306A3 (en) * 1982-05-28 1984-04-11 Amf Incorporated Filter element having microporous filter membrane
US4617124A (en) * 1982-07-13 1986-10-14 Pall Corporation Polymeric microfibrous filter sheet, preparation and use
US4578150A (en) * 1982-07-23 1986-03-25 Amf Inc. Fibrous media containing millimicron-sized particulates
US4596660A (en) * 1982-07-23 1986-06-24 Amf Inc. Fibrous media containing millimicron-sized particulates
US4517285A (en) * 1982-10-20 1985-05-14 The Wiggins Teape Group Limited Papermaking of polyolefin coated supports by controlling streaming potential
US4496461A (en) * 1983-06-17 1985-01-29 Amf Incorporated Chromatography column
US4986909A (en) * 1983-06-17 1991-01-22 Cuno Incorporated Chromatography column
US4743373A (en) * 1983-06-17 1988-05-10 Cuno Incorporated Chromatography column
JPH0738880B2 (ja) * 1983-06-24 1995-05-01 東レ株式会社 エンドトキシン血症治療剤
DE3329385A1 (de) * 1983-08-13 1985-02-28 Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach Asbestfreie filterschicht
US4724207A (en) * 1984-02-02 1988-02-09 Cuno Incorporated Modified siliceous chromatographic supports
SE8403062L (sv) * 1984-06-07 1985-12-08 Eka Ab Forfarande vid papperstillverkning
US4687820A (en) * 1984-08-22 1987-08-18 Cuno Incorporated Modified polypeptide supports
US4606824A (en) * 1984-10-26 1986-08-19 Chaokang Chu Modified cellulose separation matrix
US4735193A (en) * 1985-02-08 1988-04-05 Uop Inc. Separation of a monosaccharide with mixed matrix membranes
US4980067A (en) * 1985-07-23 1990-12-25 Cuno, Inc. Polyionene-transformed microporous membrane
US4702947A (en) * 1986-04-01 1987-10-27 Pall Corporation Fibrous structure and method of manufacture
US4881313A (en) * 1988-02-03 1989-11-21 Cuno, Incorporated Method of forming a cell filter with an exposed surface
US5055192A (en) * 1988-02-03 1991-10-08 Cuno Incorporated Cell-type filter cartridge retaining ring
SE462721B (sv) * 1988-03-08 1990-08-20 Eka Nobel Ab Saett vid framstaellning av papper genom formning och avvattning av en suspension av cellulosainnehaallande fibrer
US4798653A (en) * 1988-03-08 1989-01-17 Procomp, Inc. Retention and drainage aid for papermaking
US4963431A (en) * 1988-06-17 1990-10-16 Aquarium Pharmaceuticals, Inc. Zeolite-impregnated pads
US4981591A (en) * 1989-04-07 1991-01-01 Cuno, Incorporated Cationic charge modified filter media
US5085784A (en) * 1989-04-07 1992-02-04 Cuno, Incorporated Use of cationic charge modified filter media
US5085780A (en) * 1989-04-07 1992-02-04 Cuno, Incorporated Use of cationic charge modified filter media
US5019254A (en) * 1989-08-16 1991-05-28 Aquarium Pharmaceuticals, Inc. Filter pad with pocket and method of using the same
US5580447A (en) * 1991-04-09 1996-12-03 Sweetwater, Inc. Biocide filter
NL9301716A (nl) * 1993-10-06 1995-05-01 X Flow Bv Microfiltratie- en/of ultrafiltratiemembraan, werkwijze voor de bereiding van een dergelijk membraan, alsmede werkwijze voor het filtreren van een vloeistof met behulp van een dergelijk membraan.
US5482624A (en) * 1994-10-04 1996-01-09 Cuno Incorporated Filter cells providing lifting means and related methods
DE19504327A1 (de) * 1995-02-10 1996-08-14 Tepcon Eng Gmbh Kostenorientierte Steuerung für eine austauschbare oder regenerierbare Konditioniervorrichtung
US6576139B1 (en) 1996-07-30 2003-06-10 Kenneth C. Hou Process for purifying photoresist composition employing a filter sheet
CA2261862A1 (en) * 1996-07-30 1998-02-05 Cuno Incorporated Filter sheet and process for purifying photoresist composition employing the filter sheet
US5882517A (en) * 1996-09-10 1999-03-16 Cuno Incorporated Porous structures
FR2757079B1 (fr) * 1996-12-12 1999-02-26 Elf Antar France Papier de filtration de liquides charges
CA2289665C (en) * 1997-06-13 2005-08-09 Genentech, Inc. Protein recovery by chromatography followed by filtration upon a charged layer
US6537614B1 (en) 1998-12-18 2003-03-25 Kimberly-Clark Worldwide, Inc. Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist
US6274041B1 (en) 1998-12-18 2001-08-14 Kimberly-Clark Worldwide, Inc. Integrated filter combining physical adsorption and electrokinetic adsorption
KR20020029669A (ko) 1999-07-21 2002-04-19 데이비드 엠 모이어 미생물 필터 및 수중 미생물 제거 방법
US6645388B2 (en) 1999-12-22 2003-11-11 Kimberly-Clark Corporation Leukocyte depletion filter media, filter produced therefrom, method of making same and method of using same
US6602410B1 (en) 2000-11-14 2003-08-05 The Procter & Gamble Comapny Water purifying kits
US6712939B2 (en) 2001-02-26 2004-03-30 Cuno Incorporated Process for manufacturing wet-felted and thermally bonded porous structures and porous structures formed by the process
US20030213742A1 (en) * 2001-04-27 2003-11-20 Decoste David Filter cartrdiges and methods of manufacturing same
EP1401571B1 (en) * 2001-06-22 2006-05-10 Argonide Corporation Sub-micron filter
US7601262B1 (en) 2001-06-22 2009-10-13 Argonide Corporation Sub-micron filter
US20030038081A1 (en) * 2001-08-14 2003-02-27 I-Fan Wang High strength asymmetric cellulosic membrane
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
US7614507B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same
US20050279696A1 (en) 2001-08-23 2005-12-22 Bahm Jeannine R Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
KR100777951B1 (ko) 2001-08-23 2007-11-28 더 프록터 앤드 갬블 캄파니 정수 필터 재료, 대응하는 정수 필터 및 그의 사용 방법
US7614508B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing silver coated particles and processes for using the same
US20030042195A1 (en) * 2001-09-04 2003-03-06 Lois Jean Forde-Kohler Multi-ply filter
EP1439894A2 (en) * 2001-10-30 2004-07-28 Millipore Corporation Improved filter cell design
WO2003040166A2 (en) * 2001-11-02 2003-05-15 Millipore Corporation Membrane adsorber device
US6835311B2 (en) 2002-01-31 2004-12-28 Koslow Technologies Corporation Microporous filter media, filtration systems containing same, and methods of making and using
WO2003084882A1 (en) * 2002-04-04 2003-10-16 Millipore Corporation Composite water filter
US7303683B2 (en) 2003-04-04 2007-12-04 The Clorox Company Microorganism-removing filter medium having high isoelectric material and low melt index binder
US6989101B2 (en) 2003-04-04 2006-01-24 The Clorox Company Microorganism-removing filter medium having high isoelectric material and low melt index binder
BRPI0518130A (pt) * 2004-10-15 2008-10-28 3M Innovative Properties Co módulos de filtro pregueado, método de produção de um meio de filtro de profundidade compósito, e, meio de filtro de profundidade compósito pregueado
US7390343B2 (en) * 2005-09-12 2008-06-24 Argonide Corporation Drinking water filtration device
US20080026041A1 (en) * 2005-09-12 2008-01-31 Argonide Corporation Non-woven media incorporating ultrafine or nanosize powders
WO2007033173A1 (en) * 2005-09-12 2007-03-22 Argonide Corporation Electrostatic air filter
US7621407B2 (en) * 2007-03-23 2009-11-24 Daniel Patrick Herbst Extracorporeal blood filter system
US20110006007A1 (en) * 2008-02-12 2011-01-13 Gokhan Kuruc Composite polymeric filtration media
DE102008037678A1 (de) 2008-08-14 2010-02-25 Sartorius Stedim Biotech Gmbh Tiefenfilterschicht mit anorganischem Schichtdoppelhydroxid
DE112011101982B4 (de) 2010-06-09 2023-06-15 Cummins Filtration Ip, Inc. System und Verfahren zum Bestimmen und Angeben der Nutzungsdauer eines Filters zum Filtern eines Fluids in einer vorgegebenen Brennkraftmaschine
US8534123B2 (en) 2010-06-17 2013-09-17 Cummins Filtration Ip Inc. Engine air filter replacement indication system
US9108968B2 (en) 2012-04-25 2015-08-18 Ppg Industries Ohio, Inc. Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene by reaction of a disubstituted carbodiimide and dipropylene triamine
HK1208397A1 (en) 2012-06-27 2016-03-04 阿尔戈耐德公司 Aluminized silicious sorbent and water purification device incorporating the same
US9051687B2 (en) 2012-08-22 2015-06-09 Basf Se Production of paper, card and board

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955067A (en) * 1954-10-20 1960-10-04 Rohm & Haas Cellulosic paper containing ion exchange resin and process of making the same
US3007878A (en) * 1956-11-01 1961-11-07 Du Pont Aquasols of positively-charged coated silica particles and their production
US3034981A (en) * 1957-07-19 1962-05-15 R Schneider Ets Filter papers
GB1000038A (pt) * 1960-12-06
BE625893A (pt) * 1961-03-27
NL130162C (pt) * 1962-08-06
US3252917A (en) * 1962-08-27 1966-05-24 Nalco Chemical Co Method of producing alumina-coated silica in sol form
US3242073A (en) * 1963-03-07 1966-03-22 Dow Chemical Co Removal of microorganisms from fluids
NL6613609A (pt) * 1965-09-27 1967-03-28
US3353682A (en) * 1966-02-28 1967-11-21 Pall Corp Fluid-permeable fibrous multilayer materials and process of making the same
US3620978A (en) * 1968-07-18 1971-11-16 Du Pont Process for preparing stable positively charged alumina-coated silica sols
US3796634A (en) * 1970-03-19 1974-03-12 Us Health Education & Welfare Insolubilized biologically active enzymes
US3719607A (en) * 1971-01-29 1973-03-06 Du Pont Stable positively charged alumina coated silica sols and their preparation by postneutralization
BE790894A (fr) * 1971-11-04 1973-05-03 Du Pont Compositions minerales refractaires fibreuses
US3775141A (en) * 1972-05-03 1973-11-27 Du Pont Hardened inorganic refractory fibrous compositions
CA1044537A (en) * 1973-05-09 1978-12-19 Amf Incorporated Filter medium and process
US3956171A (en) * 1973-07-30 1976-05-11 E. I. Du Pont De Nemours And Company Process for preparing stable positively charged alumina coated silica sols and product thereof
GB2043734B (en) * 1979-03-01 1983-08-17 Amf Inc Filter and method of making same

Also Published As

Publication number Publication date
AU532801B2 (en) 1983-10-13
US4305782A (en) 1981-12-15
DE3010581A1 (de) 1980-10-16
CA1148872A (en) 1983-06-28
AU5655680A (en) 1980-10-09

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