ATE325649T1 - Positiv geladene polymermembranen - Google Patents

Positiv geladene polymermembranen

Info

Publication number
ATE325649T1
ATE325649T1 AT00102545T AT00102545T ATE325649T1 AT E325649 T1 ATE325649 T1 AT E325649T1 AT 00102545 T AT00102545 T AT 00102545T AT 00102545 T AT00102545 T AT 00102545T AT E325649 T1 ATE325649 T1 AT E325649T1
Authority
AT
Austria
Prior art keywords
membranes
charge
membrane
agents
film
Prior art date
Application number
AT00102545T
Other languages
German (de)
English (en)
Inventor
I-Fan Wang
Robert Zepf
Original Assignee
Pall Corp
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 Pall Corp filed Critical Pall Corp
Application granted granted Critical
Publication of ATE325649T1 publication Critical patent/ATE325649T1/de

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081After-treatment of organic or inorganic membranes
    • B01D67/0088Physical treatment with compounds, e.g. swelling, coating or impregnation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane manufacture
    • B01D67/0009Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011Casting solutions therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane manufacture
    • B01D67/0009Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0013Casting processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002Organic membrane manufacture
    • B01D67/0009Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0016Coagulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D67/00Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081After-treatment of organic or inorganic membranes
    • B01D67/0093Chemical modification
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D69/00Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08Hollow fibre membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/30Polyalkenyl halides
    • B01D71/32Polyalkenyl halides containing fluorine atoms
    • B01D71/34Polyvinylidene fluoride
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D71/00Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06Organic material
    • B01D71/66Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68Polysulfones; Polyethersulfones
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2323/00Details relating to membrane preparation
    • B01D2323/30Cross-linking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/18Membrane materials having mixed charged functional groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/36Hydrophilic membranes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2325/00Details relating to properties of membranes
    • B01D2325/38Hydrophobic membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
AT00102545T 1996-07-08 1997-07-08 Positiv geladene polymermembranen ATE325649T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2136996P 1996-07-08 1996-07-08

Publications (1)

Publication Number Publication Date
ATE325649T1 true ATE325649T1 (de) 2006-06-15

Family

ID=21803804

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00102545T ATE325649T1 (de) 1996-07-08 1997-07-08 Positiv geladene polymermembranen

Country Status (8)

Country Link
US (2) US6045694A (https=)
EP (1) EP0935494A4 (https=)
JP (1) JP2000515062A (https=)
AT (1) ATE325649T1 (https=)
AU (1) AU3653097A (https=)
DE (1) DE69735859T2 (https=)
ES (1) ES2259947T3 (https=)
WO (1) WO1998001208A1 (https=)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPM959994A0 (en) * 1994-11-22 1994-12-15 Ici Australia Operations Proprietary Limited Water treatment process
EP0935494A4 (en) * 1996-07-08 2000-06-14 CATIONIC MEMBRANES WITH MODIFIED LOAD
US6045899A (en) * 1996-12-12 2000-04-04 Usf Filtration & Separations Group, Inc. Highly assymetric, hydrophilic, microfiltration membranes having large pore diameters
FR2758394B1 (fr) * 1997-01-14 1999-03-19 Hospal Ind Moyens pour la bio-epuration specifique d'un fluide biologique
JP3394262B2 (ja) 1997-02-06 2003-04-07 セラセンス、インク. 小体積インビトロ被検体センサー
ATE326990T1 (de) * 1997-08-28 2006-06-15 Asahi Kasei Medical Co Ltd Filtermaterial zur entfernung von weissen blutkörperchen
US6338790B1 (en) 1998-10-08 2002-01-15 Therasense, Inc. Small volume in vitro analyte sensor with diffusible or non-leachable redox mediator
US6361921B1 (en) 1998-11-12 2002-03-26 Andrew Michael Thompson Priming composition for bonding photoresists on substrates
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
US6783937B1 (en) * 1999-02-25 2004-08-31 Pall Corporation Negatively charged membrane
JP2002543971A (ja) * 1999-05-14 2002-12-24 ポール・コーポレーション 荷電膜
EP1669129A1 (en) * 1999-05-14 2006-06-14 Pall Corporation Charged membrane
US6849185B1 (en) 1999-05-14 2005-02-01 Pall Corp Charged membrane
AU6115000A (en) * 1999-07-21 2001-02-13 Procter & Gamble Company, The Microorganism filter and method for removing microorganism from water
US20030113528A1 (en) * 1999-09-17 2003-06-19 Wilson Moya Patterned porous structures
DE60008927T2 (de) 1999-12-17 2005-01-27 Pfizer Science And Technology Ireland Ltd., Dun Laoghaire Erzeugung von pyrogen kontrolliertem wasser
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
EP1110596B1 (de) * 1999-12-23 2004-07-07 Membrana GmbH Formkörper zur Pyrogenrückhaltung, Verfahren zu ihrer Herstellung und ihre Verwendung
KR100575113B1 (ko) * 2000-06-21 2006-05-03 가부시키가이샤 구라레 다공질 중공 섬유막 및 이의 제조방법
WO2002085519A2 (en) * 2001-04-20 2002-10-31 Emembrane, Inc. High capacity methods for separation, purification, concentration, immobilization and synthesis of compounds and applications based thereupon
EP1381447B1 (en) * 2001-04-27 2007-01-24 Millipore Corporation Coated membranes
US20030211970A1 (en) * 2001-06-01 2003-11-13 Samuel Nochumson Processing of plasmid-containing fluids
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
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
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
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
KR100777951B1 (ko) 2001-08-23 2007-11-28 더 프록터 앤드 갬블 캄파니 정수 필터 재료, 대응하는 정수 필터 및 그의 사용 방법
DE60224425T2 (de) * 2001-10-04 2008-12-18 Toray Industries, Inc. Hydrophiles material und verfahren zu seiner herstellung
US6814865B1 (en) * 2001-12-05 2004-11-09 Seventy-Seventh Meridian Corporation Llc Ion exchange membranes, methods and processes for production thereof and uses in specific applications
AUPR987802A0 (en) 2002-01-08 2002-01-31 Commonwealth Scientific And Industrial Research Organisation Complexing resins and method for preparation thereof
DE20208975U1 (de) 2002-06-10 2003-10-23 Ihde, Stefan, Dr., Uetliburg Knochenadatative Oberflächenstruktur für laterale Kieferimplantate
DE10228148B4 (de) * 2002-06-24 2006-08-24 Saehan Industries Inc. Selektive Membran mit hoher Fouling-Beständigkeit
EP2143482A1 (en) 2003-02-19 2010-01-13 Natrix Separations Inc. Composite materials comprising supported porous gels
AU2003901583A0 (en) 2003-04-04 2003-05-01 Orica Australia Pty Ltd A process
US20040206694A1 (en) * 2003-04-16 2004-10-21 John Charkoudian Epoxide-crosslinked, charged cellulosic membrane
WO2005014151A1 (en) * 2003-08-06 2005-02-17 Zhejiang Omex Environmental Engineering Ltd. The preparation method of exo-pressure type poly(vinylidene fluoride) hollow fiber membrane spinned utilizing a immersion-coagulation method and the product thereof
US7517581B2 (en) * 2003-09-26 2009-04-14 Parker-Hannifin Corporation Semipermeable hydrophilic membrane
US20050147757A1 (en) * 2004-01-07 2005-07-07 Roh Il J. Method for wetting hydrophobic porous polymeric membranes to improve water flux without alcohol treatment
US7291272B2 (en) * 2004-05-07 2007-11-06 Orica Australia Pty Ltd. Inorganic contaminant removal from water
US7424821B1 (en) 2004-06-25 2008-09-16 Baxter International Inc. Characterization of porous media
JP2008505197A (ja) * 2004-07-05 2008-02-21 シーメンス・ウォーター・テクノロジーズ・コーポレーション 親水性膜
WO2006010216A1 (en) 2004-07-28 2006-02-02 Orica Australia Pty. Ltd. Plug-flow regeneration process
EP1793916B1 (en) * 2004-09-30 2010-11-24 McMASTER UNIVERSITY Composite material comprising layered hydrophilic coatings
EP1710011A1 (en) * 2005-04-07 2006-10-11 Gambro Lundia AB Filtration membrane
US20100077529A1 (en) * 2005-09-30 2010-04-01 General Electric Company Article, laminate and associated methods
US20090117367A1 (en) * 2007-09-28 2009-05-07 General Electric Company Article and associated method
US20090205116A1 (en) * 2005-09-30 2009-08-20 General Electric Company Article, laminate and associated methods
US7665615B2 (en) * 2005-09-30 2010-02-23 General Electric Company Composite article having hydrophilic properties and method of manufacture
US20070084788A1 (en) * 2005-10-14 2007-04-19 Millipore Corporation Ultrafiltration membranes and methods of making and use of ultrafiltration membranes
US20070272608A1 (en) * 2006-05-24 2007-11-29 Clark Mark M Colloidal polysulfone fibers
US7557167B2 (en) * 2006-09-28 2009-07-07 Gore Enterprise Holdings, Inc. Polyester compositions, methods of manufacturing said compositions, and articles made therefrom
US20080292820A1 (en) * 2007-05-23 2008-11-27 3M Innovative Properties Company Light diffusing solar control film
US7910012B2 (en) * 2007-07-16 2011-03-22 General Electric Company Composition, membrane, and associated method
CA2697681C (en) 2007-08-31 2013-06-11 The Regents Of The University Of Michigan Selective cytopheresis devices and related methods thereof
US8132676B2 (en) 2008-08-18 2012-03-13 Emd Millipore Corporation Hydrophilic, high protein binding, low fluorescence, western blotting membrane
CA2736814C (en) 2008-09-02 2017-02-28 Natrix Separations Inc. Chromatography membranes, devices containing them, and methods of use thereof
WO2011079062A1 (en) * 2009-12-21 2011-06-30 Siemens Industry, Inc. Charged porous polymeric membranes and their preparation
TWI410269B (zh) * 2010-09-16 2013-10-01 私立中原大學 白血球過濾材料及其過濾方法
US20130288370A1 (en) 2010-10-15 2013-10-31 Cytopherx, Inc. Cytopheresis cartridges and use thereof
EP2709749B1 (en) 2011-05-17 2018-08-15 Natrix Separations Inc. Method of use of wrapped membranes for chromatography
CA2860831C (en) 2012-01-09 2024-09-10 Seastar Medical, Inc. CARTRIDGE AND METHOD FOR INCREASING MYOCARDIAL FUNCTION
JP6109492B2 (ja) * 2012-05-22 2017-04-05 株式会社ダイセル Nf平膜とその製造方法
KR20150054918A (ko) 2012-09-14 2015-05-20 에보쿠아 워터 테크놀로지스 엘엘씨 막을 위한 중합체 블렌드
JP5424145B1 (ja) 2013-01-24 2014-02-26 東洋紡株式会社 高分子多孔質平膜シート
US9533262B2 (en) 2013-03-14 2017-01-03 Dow Global Technologies Llc Composite polyamide membrane including dissolvable polymer coating
KR102056871B1 (ko) 2013-03-15 2019-12-17 도레이첨단소재 주식회사 양전하성 폴리불화비닐덴계 다공성 분리막 및 그 제조방법
US9097712B2 (en) * 2013-03-15 2015-08-04 Allied Innovative Systems Llc Flow-through cell counting assay
US9630151B2 (en) 2015-03-31 2017-04-25 Pall Corporation Hydrophilically modified fluorinated membrane (V)
WO2017011068A1 (en) 2015-07-14 2017-01-19 Evoqua Water Technologies Llc Aeration device for filtration system
CN108697996B (zh) * 2016-02-29 2021-09-10 东丽株式会社 层叠半透膜
CN113474078B (zh) * 2019-02-26 2023-05-30 富士胶片株式会社 亲水性多孔膜及亲水性多孔膜的制造方法
US11241657B2 (en) * 2019-11-22 2022-02-08 Pall Corporation Filter for removing silica from ultra pure water and method of use
CH717692A1 (de) * 2020-07-28 2022-01-31 Johann Mueller Ag Kationisierter Filter.
CN114377551B (zh) * 2022-01-11 2023-02-24 江苏巨之澜科技有限公司 镁锂分离用荷正电型聚酰亚胺纳滤膜及其制备方法和应用
WO2025147199A1 (es) 2024-01-04 2025-07-10 Gamboa Burgos Alejandro Dispensador de líquidos con mecanismo de apertura por punta, del tipo sin preservantes para frascos de soplado, llenado y sellado

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012324A (en) * 1971-07-27 1977-03-15 Harry P. Gregor Crosslinked, interpolymer fixed-charge membranes
US3808305A (en) 1971-07-27 1974-04-30 H Gregor Crosslinked,interpolymer fixed-charge membranes
US4125462A (en) 1977-08-30 1978-11-14 Rohm And Haas Company Coated membranes
US4629563B1 (en) * 1980-03-14 1997-06-03 Memtec North America Asymmetric membranes
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
US4743418A (en) * 1981-05-29 1988-05-10 Cuno Incorporated Process for charge modifying a microporous membrane
US4737291A (en) * 1981-05-29 1988-04-12 Cuno Incorporated Charge modified microporous membrane
IL70415A (en) * 1982-12-27 1987-07-31 Aligena Ag Semipermeable encapsulated membranes,their manufacture and their use
US4704324A (en) * 1985-04-03 1987-11-03 The Dow Chemical Company Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
US4839203A (en) * 1985-04-03 1989-06-13 The Dow Chemical Company Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
US5004543A (en) * 1988-06-21 1991-04-02 Millipore Corporation Charge-modified hydrophobic membrane materials and method for making the same
AU4529289A (en) * 1988-10-17 1990-05-14 Sepracor, Inc. Process for the covalent surface modification of hydrophobic polymers and articles made therefrom
US5024765A (en) * 1989-10-02 1991-06-18 Aligena Ag Composite membranes and processes using them
US5464538A (en) * 1989-12-29 1995-11-07 The Dow Chemical Company Reverse osmosis membrane
US5151189A (en) * 1990-09-17 1992-09-29 Gelman Sciences, Inc. Cationic charge modified microporous membrane
US5269931A (en) * 1990-09-17 1993-12-14 Gelman Sciences Inc. Cationic charge modified microporous membranes
EP0478842A1 (de) * 1990-10-05 1992-04-08 PALL BIOMEDIZIN GmbH Filter zur Filtration menschlicher Cerebronspinalflüssigkeit
US5443727A (en) * 1990-10-30 1995-08-22 Minnesota Mining And Manufacturing Company Articles having a polymeric shell and method for preparing same
US5098569A (en) * 1990-12-13 1992-03-24 Monsanto Company Surface-modified support membrane and process therefor
US5137633A (en) * 1991-06-26 1992-08-11 Millipore Corporation Hydrophobic membrane having hydrophilic and charged surface and process
US5338407A (en) * 1991-12-23 1994-08-16 Hercules Incorporated Enhancement of paper dry strength by anionic and cationic guar combination
US5531893A (en) * 1993-02-12 1996-07-02 Gelman Sciences Inc. Inter-penetrating network charge modified microporous membrane
US5282971A (en) * 1993-05-11 1994-02-01 Pall Corporation Positively charged polyvinylidene fluoride membrane
US5543054A (en) * 1993-11-24 1996-08-06 Millipore Corporation Method and apparatus for covalent immobilization of charge- conjugated carbohydrate molecules
ATE295223T1 (de) 1994-03-04 2005-05-15 Pall Corp Gross-porige membranen aus synthetischen polymeren
US5591335A (en) 1995-05-02 1997-01-07 Memtec America Corporation Filter cartridges having nonwoven melt blown filtration media with integral co-located support and filtration
CA2222641C (en) 1995-06-07 2006-10-17 Memtec America Corporation Microfiltration membranes having high pore density and mixed isotropic and anisotropic structure
KR100458615B1 (ko) 1996-01-22 2005-04-21 폴 필트레이션 앤드 세퍼레이션스 그룹 인크. 고다공성폴리비닐리덴디플루오라이드막
EP0935494A4 (en) * 1996-07-08 2000-06-14 CATIONIC MEMBRANES WITH MODIFIED LOAD

Also Published As

Publication number Publication date
WO1998001208A1 (en) 1998-01-15
EP0935494A4 (en) 2000-06-14
US6565748B1 (en) 2003-05-20
JP2000515062A (ja) 2000-11-14
AU3653097A (en) 1998-02-02
US6045694A (en) 2000-04-04
ES2259947T3 (es) 2006-11-01
DE69735859T2 (de) 2006-10-26
DE69735859D1 (de) 2006-06-14
EP0935494A1 (en) 1999-08-18

Similar Documents

Publication Publication Date Title
ATE325649T1 (de) Positiv geladene polymermembranen
DE69431150D1 (de) Struktuierte copolymere als metallionenträger
AU8713591A (en) Cationic charge modified microporous membranes
BE847686A (fr) Corps d'insertion oculaire pour le traitement de la siccite oculaire par deficience aqueuse,
FR2360623B1 (https=)
FR2636339B1 (fr) Gel aqueux a base d'acide hyaluronique et d'acide desoxyribonucleique utilisable en cosmetique, et procede de preparation
EP0976436A4 (en) WASTEWATER TREATMENT AGENT, WATER TREATMENT METHOD, DRYER AGENT AND METHOD FOR SLUDGE TREATMENT
NO20035487D0 (no) Anvendelse av reaktive polylmere surfaktanter ved dannelse av emulsjoner
DK0891365T3 (da) Benzoxaziner til forstærkning af synaptiske responser
DK164475C (da) Fremgangsmaade til permanentning af det efter en tidligere permanentning fremvoksede haar.
ATE31552T1 (de) Polyoxazoline in waessrigen abschreckbaedern.
WO2004069888A3 (en) Block copolymers
FI954804A0 (fi) Ioneenipolymeerit matolääkkeinä eläimillä
DE69918286D1 (de) Behandlung von substraten um die qualität von darauf gedruckten bildern zu verbessern unter anwendung von azetidinium- und/oder guanidinpolymeren
ATE270580T1 (de) Formkörper zur pyrogenrückhaltung, verfahren zu ihrer herstellung und ihre verwendung
IL128876A0 (en) Solvent and acid resistant membrane on the basis of polyacrylonitrile and a comonomer copolymerized therewith and a method of manufacturing
PT96992A (pt) Processo de revestimento de principios activos com um ou varios polimeros sensiveis ao ph por exemplo com copolimeros de estireno e da vinilpiridina
ES2042087T3 (es) Procedimiento para la desalinizacion de soluciones de electrolitos que contienen disolventes, por electrodialisis.
ATE304557T1 (de) Einführung von funktionellen gruppen an polymeren
ES2145622T3 (es) Procedimiento de produccion de cuerpos formados en celulosa, cuerpos formados asi producidos y su utilizacion.
EP1121972A3 (en) Cationically charge-modified membranes
ES2158267T3 (es) Colirio destinado especialmente al tratamiento de la sequedad de ojos.
CN108250468A (zh) 一种调节韧性水凝胶刚度的方法
ATE375195T1 (de) Mit blut und gewebe verträgliche membranen aus p(an/nvp)-misch-polymeren und deren anwendung im medizinischen bereich
BR9810926A (pt) Sistema de telecomunicação

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties