RU96122351A - POROUS MEMBRANE WITH REDUCED VAPOR PERMEABILITY - Google Patents

POROUS MEMBRANE WITH REDUCED VAPOR PERMEABILITY

Info

Publication number
RU96122351A
RU96122351A RU96122351/25A RU96122351A RU96122351A RU 96122351 A RU96122351 A RU 96122351A RU 96122351/25 A RU96122351/25 A RU 96122351/25A RU 96122351 A RU96122351 A RU 96122351A RU 96122351 A RU96122351 A RU 96122351A
Authority
RU
Russia
Prior art keywords
membrane
tetrafluoroethylene
porous membrane
vapor permeability
reduced vapor
Prior art date
Application number
RU96122351/25A
Other languages
Russian (ru)
Other versions
RU2111047C1 (en
Inventor
Ф.А. Махмутов
Е.В. Козлова
И.М. Васильева
Original Assignee
Ф.А. Махмутов
Filing date
Publication date
Application filed by Ф.А. Махмутов filed Critical Ф.А. Махмутов
Priority to RU96122351A priority Critical patent/RU2111047C1/en
Priority claimed from RU96122351A external-priority patent/RU2111047C1/en
Priority to JP9122521A priority patent/JPH10180061A/en
Priority to US08/975,991 priority patent/US6010628A/en
Priority to EP97120481A priority patent/EP0844681A3/en
Application granted granted Critical
Publication of RU2111047C1 publication Critical patent/RU2111047C1/en
Publication of RU96122351A publication Critical patent/RU96122351A/en

Links

Claims (3)

1. Полупроницаемая пористая асимметричная мембрана на основе полимера винилиденфторида, отличающаяся тем, что она состоит из сополимера винилиденфторида с тетрафторэтиленом при массовом содержании тетрафторэтилена 8 - 70%, размер пор мембраны составляет 0,0015 - 0,030 мкм, а объемная пористость составляет 35 - 60%.1. A semipermeable porous asymmetric membrane based on a vinylidene fluoride polymer, characterized in that it consists of a copolymer of vinylidene fluoride with tetrafluoroethylene with a mass content of tetrafluoroethylene of 8 - 70%, the pore size of the membrane is 0.0015 - 0.030 μm, and the bulk porosity is 35 - 60% . 2. Полупроницаемая мембрана по п. 1, отличающаяся тем, что ее более плотная сторона покрыта дополнительно слоем полидиметилсилоксана, поливинилтриметилсилана, политриметилсилилпропина, поливинилиденфторида или его сополимера с тетрафторэтиленом при поверхностной плотности покрытия не более 5 г/м2.2. The semi-permeable membrane according to claim 1, characterized in that its denser side is additionally coated with a layer of polydimethylsiloxane, polyvinyltrimethylsilane, polytrimethylsilylpropine, polyvinylidene fluoride or its copolymer with tetrafluoroethylene with a surface coating density of not more than 5 g / m 2 . 3. Полупроницаемая мембрана по пп. 1 и 2, отличающаяся тем, что она дополнительно включает крупнопористую волокнистую подложку из полипропилена или капрона при массовом соотношении волокнистой подложки и фторопластового слоя мембраны 1:(0,3 - 1,5). 3. The semi-permeable membrane in paragraphs. 1 and 2, characterized in that it further includes a large-pore fibrous substrate of polypropylene or nylon with a mass ratio of the fibrous substrate and the fluoroplastic layer of the membrane 1: (0.3 - 1.5).
RU96122351A 1996-11-22 1996-11-22 Porous membrane with reduced vapor permeability RU2111047C1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RU96122351A RU2111047C1 (en) 1996-11-22 1996-11-22 Porous membrane with reduced vapor permeability
JP9122521A JPH10180061A (en) 1996-11-22 1997-05-13 Low seam premeable porous diaphragm
US08/975,991 US6010628A (en) 1996-11-22 1997-11-21 Porous membrane with low steam permeability
EP97120481A EP0844681A3 (en) 1996-11-22 1997-11-21 Porous membrane with low steam permeability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU96122351A RU2111047C1 (en) 1996-11-22 1996-11-22 Porous membrane with reduced vapor permeability

Publications (2)

Publication Number Publication Date
RU2111047C1 RU2111047C1 (en) 1998-05-20
RU96122351A true RU96122351A (en) 1998-10-10

Family

ID=20187488

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96122351A RU2111047C1 (en) 1996-11-22 1996-11-22 Porous membrane with reduced vapor permeability

Country Status (4)

Country Link
US (1) US6010628A (en)
EP (1) EP0844681A3 (en)
JP (1) JPH10180061A (en)
RU (1) RU2111047C1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7942274B2 (en) * 2000-05-24 2011-05-17 Millipore Corporation High-throughput asymmetric membrane
US6733915B2 (en) * 2001-12-27 2004-05-11 E. I. Du Pont De Nemours And Company Gas diffusion backing for fuel cells
FR2834651B1 (en) * 2002-01-16 2004-02-20 Atofina POROUS MEMBRANE BASED ON A MIXTURE OF A FLUOROPOLYMER AND A SILANE
JP5097826B2 (en) * 2007-08-24 2012-12-12 ヴラームス インステリング ヴール テクノロギシュ オンデルゾーク （ヴイアイティーオー） Filled polymer membrane, use and manufacturing method
CA2707425A1 (en) * 2008-01-24 2009-07-30 Renaissance Energy Research Corporation Co2-facilitated transport membrane and method for producing the same
US20140138314A1 (en) * 2012-11-16 2014-05-22 Uop Llc Fluorinated ethylene-propylene polymeric membranes for gas separations
CN104923085B (en) * 2015-06-04 2017-01-18 宁波聿丰新材料科技有限公司 Method for preparing high-hydrophobicity polyvinylidene fluoride compound porous membrane

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1552942A (en) * 1975-07-17 1979-09-19 Sumitomo Electric Industries Process for producing a porous material having a fine pore size
JPS5893734A (en) * 1981-11-30 1983-06-03 Asahi Chem Ind Co Ltd Production of porous membrane of hydrophilic polyvinylidene fluoride resin
SU1327519A1 (en) * 1985-01-31 1991-07-30 Всесоюзный научно-исследовательский институт синтетических смол Semipermeable porous membrane
DE3640975C2 (en) * 1986-12-01 1994-08-11 Messer Griesheim Gmbh Process for the production of fluorinated surfaces of high density polyethylene (HDPE)
US4900626A (en) * 1987-07-28 1990-02-13 Rhone-Poulenc Recherches Hollow composite fibers selectively permeable to water vapor
JP2867505B2 (en) * 1989-12-04 1999-03-08 三菱電機株式会社 Instrument transformer
US5013339A (en) * 1989-12-05 1991-05-07 The Dow Chemical Company Compositions useful for making microporous polyvinylidene fluoride membranes, and process
JPH04312771A (en) * 1991-04-11 1992-11-04 Toshiba Battery Co Ltd Air battery
RU2017761C1 (en) * 1991-05-05 1994-08-15 Александр Иванович Христофоров Composition for porous films making
JPH07105991A (en) * 1993-10-04 1995-04-21 Matsushita Electric Ind Co Ltd Oxygen enriched film for battery
US5354587A (en) * 1993-11-15 1994-10-11 W. L. Gore & Associates, Inc. Hydrophilic compositions with increased thermal and solvent resistance

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