DK230686D0 - Poroest filtermedium og membranunderstoetning - Google Patents

Poroest filtermedium og membranunderstoetning

Info

Publication number
DK230686D0
DK230686D0 DK230686A DK230686A DK230686D0 DK 230686 D0 DK230686 D0 DK 230686D0 DK 230686 A DK230686 A DK 230686A DK 230686 A DK230686 A DK 230686A DK 230686 D0 DK230686 D0 DK 230686D0
Authority
DK
Denmark
Prior art keywords
poroest
filter medium
membrane support
membrane
support
Prior art date
Application number
DK230686A
Other languages
English (en)
Other versions
DK230686A (da
Inventor
Charles F Diehl
Richie A Wessling
Larry D Yats
Alan F Burmester
Original Assignee
Dow Chemical Co
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
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Publication of DK230686D0 publication Critical patent/DK230686D0/da
Publication of DK230686A publication Critical patent/DK230686A/da

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • 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
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • B01D39/2024—Glass or glassy material the material being filamentary or fibrous otherwise bonded, e.g. by resins
    • 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
    • B01D69/10—Supported membranes; Membrane supports
    • B01D69/108—Inorganic support material
    • 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
    • B01D69/1213—Laminated layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP 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
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/08—Filter paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1208—Porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1258—Permeability
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24595—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness and varying density
    • Y10T428/24603—Fiber containing component
    • 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
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/69—Autogenously bonded nonwoven fabric

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Laminated Bodies (AREA)
  • Filtering Materials (AREA)
DK230686A 1985-05-23 1986-05-16 Poraest filtermedium og membranunderstaetning DK230686A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73711385A 1985-05-23 1985-05-23
US06/851,178 US4765915A (en) 1985-05-23 1986-04-14 Porous filter media and membrane support means

Publications (2)

Publication Number Publication Date
DK230686D0 true DK230686D0 (da) 1986-05-16
DK230686A DK230686A (da) 1986-11-24

Family

ID=27113174

Family Applications (1)

Application Number Title Priority Date Filing Date
DK230686A DK230686A (da) 1985-05-23 1986-05-16 Poraest filtermedium og membranunderstaetning

Country Status (9)

Country Link
US (1) US4765915A (da)
EP (2) EP0434668A1 (da)
KR (1) KR930008110B1 (da)
AU (1) AU582238B2 (da)
BR (1) BR8602350A (da)
CA (1) CA1276890C (da)
DK (1) DK230686A (da)
ES (1) ES8705772A1 (da)
IN (1) IN167443B (da)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904385A (en) * 1985-05-23 1990-02-27 The Dow Chemical Company Porous filter media and membrane support means
US4774192A (en) * 1987-01-28 1988-09-27 Technimed Corporation A dry reagent delivery system with membrane having porosity gradient
WO1988010146A1 (en) * 1987-06-25 1988-12-29 Scientific Glass Engineering Pty. Ltd. Filter element for liquid chromatography
GB8818425D0 (en) * 1988-08-03 1988-09-07 Wiggins Teape Group Ltd Plastics material
US4917714A (en) * 1988-12-08 1990-04-17 James River Corporation Filter element comprising glass fibers
US5145615A (en) * 1989-01-19 1992-09-08 General Electric Company Process for making an expanded fiber composite structure
US5273818A (en) * 1989-01-19 1993-12-28 General Electric Company Expanded fiber composite structure having a cylindrical shape and useful as a filter
US4961974A (en) * 1989-03-03 1990-10-09 Ahlstrom Filtration, Inc. Laminated filters
FR2645673B1 (fr) * 1989-04-10 1994-04-08 Sgn Bougie filtrante sans amiante pour la filtration de gaz chauds radioactifs
DE3915197C2 (de) * 1989-05-10 1993-10-07 Dt Membranfilter Vertrieb Abstandselement zur Lenkung von Strömungsmedien
US5354474A (en) * 1989-12-22 1994-10-11 The Dow Chemical Company Dynamic membrane separation process for improved selectivity
US5639373A (en) 1995-08-11 1997-06-17 Zenon Environmental Inc. Vertical skein of hollow fiber membranes and method of maintaining clean fiber surfaces while filtering a substrate to withdraw a permeate
US5246474A (en) * 1991-05-04 1993-09-21 British United Shoe Machinery Limited Process for manufacturing a self-supporting filter unit
US5238621A (en) * 1991-06-28 1993-08-24 Minnesota Mining And Manufacturing Company Method of controlling porosity in a composite article
US5248428A (en) * 1991-06-28 1993-09-28 Minnesota Mining And Manufacturing Company Article for separations and purifications and method of controlling porosity therein
US5186843A (en) * 1991-07-22 1993-02-16 Ahlstrom Filtration, Inc. Blood separation media and method for separating plasma from whole blood
US5167579A (en) * 1991-08-15 1992-12-01 Rotter Martin J Roof vent of synthetic fiber matting
GB9306289D0 (en) * 1993-03-26 1993-05-19 British United Shoe Machinery Filtration medium
US5389121A (en) * 1993-08-09 1995-02-14 Pfeffer; Jack R. Composite of layers of glass fibers of various filament diameters
CA2177983A1 (en) * 1993-12-22 1995-06-29 Donald F. Hagen Sheet materials for solid phase extractions and solid phase reactions
US5419957A (en) * 1994-05-17 1995-05-30 The Dow Chemical Company Low heat release polymeric composites
WO1996036415A1 (en) * 1995-05-18 1996-11-21 Parker-Hannifin Corporation Compound layer resin bonded filter cartridge
US20040238432A1 (en) * 1995-08-11 2004-12-02 Mailvaganam Mahendran Membrane filtration module with adjustable header spacing
US8852438B2 (en) * 1995-08-11 2014-10-07 Zenon Technology Partnership Membrane filtration module with adjustable header spacing
DE19543955C2 (de) * 1995-11-25 1998-12-24 Sartorius Gmbh Auf Integrität testbare Filtrationseinheit mit hydrophilen, porösen Membranen
US5800586A (en) * 1996-11-08 1998-09-01 Johns Manville International, Inc. Composite filter media
US5820645A (en) * 1997-05-23 1998-10-13 Reemay, Inc. Pleatable nonwoven composite article for gas filter media
US6015499A (en) * 1998-04-17 2000-01-18 Parker-Hannifin Corporation Membrane-like filter element for chemical mechanical polishing slurries
US20040175516A1 (en) * 1998-10-28 2004-09-09 Gerhard Schmitz Insulating arrangement for the inner insulation of an aircraft
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
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
US6241899B1 (en) * 2000-02-28 2001-06-05 Maritza L. Ramos Disposable filter bags for pool cleaners
EP1245670A3 (en) * 2001-03-27 2004-01-28 Becton, Dickson and Company Method and apparatus for culturing cells
DE102006048076A1 (de) * 2006-10-09 2008-04-10 Mann + Hummel Gmbh Filtereinrichtung, insbesondere zur Filtration von Verbrennungsluft in Brennkraftmaschinen
GB0422333D0 (en) * 2004-10-08 2004-11-10 Abg Ltd Drained barrier
EP2311543B1 (en) * 2004-11-05 2015-07-01 Donaldson Company, Inc. Aerosol separator
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
US8021457B2 (en) 2004-11-05 2011-09-20 Donaldson Company, Inc. Filter media and structure
MX2007009400A (es) 2005-02-04 2007-08-16 Donaldson Co Inc Separador de aerosol y metodo.
EP1858618B1 (en) 2005-02-22 2009-09-16 Donaldson Company, Inc. Aerosol separator
CN101137427B (zh) * 2005-03-09 2011-08-03 加利福尼亚大学校务委员会 纳米复合材料膜及其制备和使用方法
US7332011B1 (en) * 2005-03-16 2008-02-19 Leslye Sandberg Equipment air filter assembly
WO2007007343A2 (en) * 2005-07-14 2007-01-18 Ben Gurion University Of The Negev Research And Development Authority Composite membranes and methods for their preparation
US20080034685A1 (en) * 2006-04-12 2008-02-14 Ogletree Ronald K Roof Ventilation Device
JP4944540B2 (ja) * 2006-08-17 2012-06-06 日本バイリーン株式会社 フィルタエレメント、その製造方法、並びに使用方法
WO2008057842A2 (en) * 2006-10-27 2008-05-15 The Regents Of The University Of California Micro-and nanocomposite support structures for reverse osmosis thin film membranes
KR101455429B1 (ko) * 2007-02-19 2014-10-27 쓰리엠 이노베이티브 프로퍼티즈 컴파니 유연성 섬유 재료, 오염 제어 장치 및 그 제조 방법
EP2117674A1 (en) 2007-02-22 2009-11-18 Donaldson Company, Inc. Filter element and method
WO2008103821A2 (en) 2007-02-23 2008-08-28 Donaldson Company, Inc. Formed filter element
US8978899B2 (en) * 2007-08-01 2015-03-17 Donaldson Company, Inc. Fluoropolymer fine fiber
JP2010540215A (ja) * 2007-09-21 2010-12-24 ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア ナノ複合膜ならびにその作製および使用方法
US8177978B2 (en) * 2008-04-15 2012-05-15 Nanoh20, Inc. Reverse osmosis membranes
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
US8357220B2 (en) 2008-11-07 2013-01-22 Hollingsworth & Vose Company Multi-phase filter medium
US8267681B2 (en) 2009-01-28 2012-09-18 Donaldson Company, Inc. Method and apparatus for forming a fibrous media
CA2766352C (en) 2009-06-29 2018-09-18 NanoH2O Inc. Improved hybrid tfc ro membranes with nitrogen additives
WO2011007184A2 (en) 2009-07-17 2011-01-20 Carbon Fibre Preforms Ltd A fibre matrix and a method of making a fibre matrix
EP2290510B1 (en) * 2009-08-27 2018-07-04 BlackBerry Limited Touch-sensitive display with capacitive and resistive touch sensors and method of control
US20110210060A1 (en) * 2010-02-26 2011-09-01 Clarcor Inc. Expanded composite filter media including nanofiber matrix and method
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
EP2637773B1 (en) 2010-11-10 2019-10-30 NanoH2O Inc. Improved hybrid tfc ro membranes with non-metallic additives
BR112013018772B1 (pt) 2011-01-28 2021-01-19 Donaldson Company, Inc. método e aparelho para formação de meios fibrosos
EP2668327B1 (en) 2011-01-28 2016-10-12 Donaldson Company, Inc. Method and apparatus for forming a fibrous media
CA2837807C (en) 2012-12-20 2022-11-29 Building Materials Investment Corporation Contoured mesh ridge vents
US20140179220A1 (en) 2012-12-20 2014-06-26 Building Materials Investment Corporation Contoured Mesh Ridge Vents
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
US9861940B2 (en) 2015-08-31 2018-01-09 Lg Baboh2O, Inc. Additives for salt rejection enhancement of a membrane
US9737859B2 (en) 2016-01-11 2017-08-22 Lg Nanoh2O, Inc. Process for improved water flux through a TFC membrane
US10155203B2 (en) 2016-03-03 2018-12-18 Lg Nanoh2O, Inc. Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents
CN112707585B (zh) * 2020-12-03 2022-08-16 安徽森淼实业有限公司 一种羟丙基甲基纤维素生产废水回收再利用工艺

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL134681C (da) * 1966-04-26
US3526557A (en) * 1966-11-18 1970-09-01 American Air Filter Co Method for making filamentous mats
US3607500A (en) * 1969-06-04 1971-09-21 Du Pont A molding fibrous webs
DE2165073A1 (de) * 1971-12-28 1973-07-12 Sartorius Membranfilter Gmbh Mehrschichten-filtermembrane, verfahren zu deren herstellung und deren verwendung
JPS5225864B2 (da) * 1972-03-10 1977-07-11
US3804259A (en) * 1973-01-23 1974-04-16 Us Interior Filament wound reverse osmosis tubes
US3874986A (en) * 1974-05-20 1975-04-01 Gen Electric Laminated porous/non-porous membranes
JPS5373267A (en) * 1976-12-10 1978-06-29 Toho Beslon Co Molding of blended fiber mat and composite material
US4293378A (en) * 1980-01-10 1981-10-06 Max Klein Enhanced wet strength filter mats to separate particulates from fluids and/or coalesce entrained droplets from gases
IT1193532B (it) * 1980-05-06 1988-07-08 Montedison Spa Manufatti di polimeri termoplastici rinforzati con fibre di vetro
JPS5784713A (en) * 1980-11-12 1982-05-27 Toyobo Co Ltd Production of filter
EP0056702B1 (en) * 1981-01-21 1985-07-03 Imperial Chemical Industries Plc Process of producing fibre-reinforced shaped articles
US4418031A (en) * 1981-04-06 1983-11-29 Van Dresser Corporation Moldable fibrous mat and method of making the same
FR2507123A1 (fr) * 1981-06-04 1982-12-10 Arjomari Prioux Semi-produit composite en feuille constitue d'un composant thermoplastique et d'un renfort en polyaramide, son procede de preparation, et les produits finis correspondants obtenus a chaud
US4426470A (en) * 1981-07-27 1984-01-17 The Dow Chemical Company Aqueous method of making reinforced composite material from latex, solid polymer and reinforcing material
GB8400293D0 (en) * 1984-01-06 1984-02-08 Wiggins Teape Group Ltd Moulded fibre reinforced plastics articles
US4643940A (en) * 1984-08-06 1987-02-17 The Dow Chemical Company Low density fiber-reinforced plastic composites
EP0174918A1 (en) * 1984-08-13 1986-03-19 Monsanto Company Composite gas separation membranes
US4550131A (en) * 1984-10-30 1985-10-29 The Dow Chemical Company Aqueous slurry process for preparing reinforced polymeric composites

Also Published As

Publication number Publication date
EP0202617A2 (en) 1986-11-26
CA1276890C (en) 1990-11-27
KR860008788A (ko) 1986-12-18
EP0434668A1 (en) 1991-06-26
EP0202617A3 (en) 1988-10-05
ES8705772A1 (es) 1987-05-16
KR930008110B1 (ko) 1993-08-26
DK230686A (da) 1986-11-24
US4765915A (en) 1988-08-23
IN167443B (da) 1990-10-27
AU5747386A (en) 1986-11-27
BR8602350A (pt) 1987-01-21
ES555217A0 (es) 1987-05-16
AU582238B2 (en) 1989-03-16

Similar Documents

Publication Publication Date Title
DK230686D0 (da) Poroest filtermedium og membranunderstoetning
BR8804636A (pt) Metodo e suporte de membrana inorganica porosa
DK162137C (da) Engangsble og fremgangsmaade til fremstilling deraf
DK166390D0 (da) Poroese membraner
DK138185A (da) Eventuelt poroese intumescensmasser og deres anvendelse
KR870700387A (ko) 미분자 필터
KR870000423U (ko) 여과 엘레멘트
NO842025L (no) Filterpapir og anvendelse derav
DE3677269D1 (de) Expandierbarer fiberbettfilter und koaleszenzvorrichtung.
DK335986A (da) Poly-4-aminopropyl-2-carboxamidoderivat og fremgangsmaade til fremstilling deraf
DK441386A (da) Understoettet membran og fremgangsmaade til fremstilling deraf
DK166482C (da) Filtreringsapparat
DE3775692D1 (de) Schwimmendes filtermedium.
DK413187D0 (da) Semicarbazoner og thiosemicarbazoner
DE3668468D1 (de) Filtrationsmembraneinheit.
FR2577083B1 (fr) Amplificateur operationnel
NO178106C (no) 2,4,6-trijod-isoftalamider og kontrastmedier inneholdende disse
DK99187A (da) Ionofor og ion-selektiv membran indeholdende samme
DK214587A (da) Fremgangsmaade til klaring og stabilisering af cel-lekulturmedier
DK434388A (da) Fremgangsmaade og anlaeg til informationssoegning
DK352887D0 (da) Pick-upnaal til stereofoniske og kvadrofoniske grammofonplader
DK363786A (da) Hydroquinoliner og anvendelse deraf
ZA863655B (en) A porous filter media and membrane support means
BR6502041U (pt) Conjunto espelho e suporte
ATE49776T1 (de) Filtrationsmembraneinheit.

Legal Events

Date Code Title Description
AHB Application shelved due to non-payment