IT1270864B - Mezzi compositi supportati e microporosi comprendenti un fluoropolimero procedimento per la loro preparazione e loro impiego - Google Patents
Mezzi compositi supportati e microporosi comprendenti un fluoropolimero procedimento per la loro preparazione e loro impiegoInfo
- Publication number
- IT1270864B IT1270864B ITMI930220A ITMI930220A IT1270864B IT 1270864 B IT1270864 B IT 1270864B IT MI930220 A ITMI930220 A IT MI930220A IT MI930220 A ITMI930220 A IT MI930220A IT 1270864 B IT1270864 B IT 1270864B
- Authority
- IT
- Italy
- Prior art keywords
- fluoropolymer
- supported
- microporous
- procedure
- preparation
- Prior art date
Links
- 229920002313 fluoropolymer Polymers 0.000 title abstract 6
- 239000004811 fluoropolymer Substances 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 2
- 150000001875 compounds Chemical class 0.000 title 1
- 239000002131 composite material Substances 0.000 abstract 4
- 229920001410 Microfiber Polymers 0.000 abstract 3
- 239000004744 fabric Substances 0.000 abstract 3
- 239000003658 microfiber Substances 0.000 abstract 3
- 239000012528 membrane Substances 0.000 abstract 2
- 238000004458 analytical method Methods 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000012982 microporous membrane Substances 0.000 abstract 1
- 239000011236 particulate material Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- 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
-
- 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
- B01D69/107—Organic support material
- B01D69/1071—Woven, non-woven or net mesh
-
- 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
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
- B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0253—Polyolefin fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/02—Cellular or porous
- B32B2305/026—Porous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2327/00—Polyvinylhalogenides
- B32B2327/12—Polyvinylhalogenides containing fluorine
- B32B2327/18—PTFE, i.e. polytetrafluoroethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Viene provvisto un mezzo composito, supportato e microporoso che include una membrana fluoropolimerica microporosa avente fissato direttamente ad almeno una sua superficie un tessuto fluoropolimerico di microfibre. Viene provvisto anche un procedimento per la formazione di un mezzo composito, supportato e microporoso che include il contatto della membrana fluoropolimerica e microporosa con un tessuto fluoropolimerico di microfibre ed il sottoporre detta membrana fluoropolimerica e detto tessuto di microfibre ad un calore ed una pressione sufficienti per effettuare il legame tra di essi. Il mezzo composito, supportato e microporoso può essere impiegato per la separazione di un materiale in particelle da un fluido contenente un particolato. Il mezzo composito trova impiego anche in procedure analitiche.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/833,122 US5366631A (en) | 1992-02-10 | 1992-02-10 | Composite, supported fluorocarbon media |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI930220A0 ITMI930220A0 (it) | 1993-02-09 |
ITMI930220A1 ITMI930220A1 (it) | 1994-08-09 |
IT1270864B true IT1270864B (it) | 1997-05-13 |
Family
ID=25263496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI930220A IT1270864B (it) | 1992-02-10 | 1993-02-09 | Mezzi compositi supportati e microporosi comprendenti un fluoropolimero procedimento per la loro preparazione e loro impiego |
Country Status (5)
Country | Link |
---|---|
US (1) | US5366631A (it) |
DE (1) | DE4303765C2 (it) |
FR (1) | FR2687160B1 (it) |
GB (1) | GB2263883B (it) |
IT (1) | IT1270864B (it) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW371284B (en) | 1996-12-04 | 1999-10-01 | Daikin Ind Ltd | Filtration material of filter and air cleaning device using the filtration material |
US5912072A (en) * | 1997-09-18 | 1999-06-15 | The Procter & Gamble Company | Process of reducing wet pressure drop in a limiting orifice drying medium and a limiting orifice drying medium made thereby |
US6103172A (en) * | 1998-04-07 | 2000-08-15 | Pall Corporation | Method of preparaing a porous polytetrafluoroethylene membranne |
AU2924001A (en) * | 1999-11-09 | 2001-06-06 | Photonic Biosystems, Inc. | Ammonia detection and measurement device |
US6617151B1 (en) * | 2000-02-29 | 2003-09-09 | Gore Enterprise Holdings, Inc. | Method of closing a cell containment device with a wet seal |
WO2002061170A1 (en) * | 2001-01-31 | 2002-08-08 | Pall Corporation | Purification systems, methods and devices |
EP1266681B1 (en) * | 2001-06-13 | 2013-12-25 | Nitto Denko Corporation | Filter medium for turbine and methods of using and producing the same |
KR20050032603A (ko) * | 2002-08-14 | 2005-04-07 | 폴 코포레이션 | 불소중합체 막 |
US8021457B2 (en) | 2004-11-05 | 2011-09-20 | Donaldson Company, Inc. | Filter media and structure |
KR101514908B1 (ko) | 2004-11-05 | 2015-04-23 | 도날드슨 컴파니, 인코포레이티드 | 필터 매체 및 구조 |
US8057567B2 (en) | 2004-11-05 | 2011-11-15 | Donaldson Company, Inc. | Filter medium and breather filter structure |
DE102004055542A1 (de) * | 2004-11-17 | 2006-05-18 | Basf Ag | Verfahren zur Herstellung einer feinteiligen Emulsion aus einer Rohemulsion |
JP5308031B2 (ja) | 2005-02-04 | 2013-10-09 | ドナルドソン カンパニー,インコーポレイティド | 換気フィルタおよび換気用ろ過アセンブリ |
WO2006091594A1 (en) | 2005-02-22 | 2006-08-31 | Donaldson Company, Inc. | Aerosol separator |
WO2007115321A2 (en) * | 2006-04-04 | 2007-10-11 | Photonic Biosystems, Inc. | Visual, continuous and simultaneous measurement of solution ammonia and hydrogen ion concentration |
CN101652168A (zh) | 2007-02-22 | 2010-02-17 | 唐纳森公司 | 过滤元件及其方法 |
WO2008103821A2 (en) | 2007-02-23 | 2008-08-28 | Donaldson Company, Inc. | Formed filter element |
US8673040B2 (en) | 2008-06-13 | 2014-03-18 | Donaldson Company, Inc. | Filter construction for use with air in-take for gas turbine and methods |
US9885154B2 (en) | 2009-01-28 | 2018-02-06 | Donaldson Company, Inc. | Fibrous media |
US8790432B2 (en) * | 2012-04-27 | 2014-07-29 | W. L. Gore & Associates, Inc. | Seam-sealed filters and methods of making thereof |
US9656214B2 (en) * | 2012-11-30 | 2017-05-23 | Empire Technology Development Llc | Graphene membrane laminated to porous woven or nonwoven support |
US20140231340A1 (en) * | 2013-02-15 | 2014-08-21 | Pall Corporation | Composite including ptfe membrane |
US20140231341A1 (en) * | 2013-02-15 | 2014-08-21 | Pall Corporation | Ptfe membrane |
US20140332459A1 (en) * | 2013-05-10 | 2014-11-13 | Goodrich Corporation | Biocide-loaded electrospun nanofibers supported by adhesive-free thin fabric for pathogen removal filtration |
US20140339148A1 (en) * | 2013-05-17 | 2014-11-20 | Goodrich Corporation | Silver-coated nanofibers fabrics for pathogen removal filtration |
EP3439760B1 (en) * | 2016-04-07 | 2023-08-23 | North Carolina State University | Passive sampler |
WO2021231926A1 (en) * | 2020-05-15 | 2021-11-18 | Entegris, Inc. | Method of forming a laminated single layer composite membrane |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE392582B (sv) * | 1970-05-21 | 1977-04-04 | Gore & Ass | Forfarande vid framstellning av ett porost material, genom expandering och streckning av en tetrafluoretenpolymer framstelld i ett pastabildande strengsprutningsforfarande |
US4025679A (en) * | 1976-08-06 | 1977-05-24 | W. L. Gore & Associates, Inc. | Fibrillated polytetrafluoroethylene woven filter fabric |
US4203848A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Processes of making a porous membrane material from polyvinylidene fluoride, and products |
US4203847A (en) * | 1977-05-25 | 1980-05-20 | Millipore Corporation | Making porous membranes and the membrane products |
CA1147109A (en) * | 1978-11-30 | 1983-05-31 | Hiroshi Mano | Porous structure of polytetrafluoroethylene and process for production thereof |
US4399183A (en) * | 1979-12-27 | 1983-08-16 | E. I. Du Pont De Nemours And Company | Web-supported membrane |
US4431545A (en) * | 1982-05-07 | 1984-02-14 | Pall Corporation | Microporous filter system and process |
DE3486268T2 (de) * | 1983-06-22 | 1994-07-07 | Atochem Elf Sa | Werkstoff auf Basis von stromleitfähigen Fasern, seine Herstellung und seine Anwendung, insbesondere zur Herstellung von katodischen Elementen. |
US4664683A (en) * | 1984-04-25 | 1987-05-12 | Pall Corporation | Self-supporting structures containing immobilized carbon particles and method for forming same |
GB2169224B (en) * | 1984-12-21 | 1989-01-11 | Pall Corp | Supported microporous membrane and method of making |
US4774001A (en) * | 1984-12-21 | 1988-09-27 | Pall Corporation | Supported microporous membrane |
US4716074A (en) * | 1986-02-10 | 1987-12-29 | Pall Corporation | Porous fibrous fluorocarbon structures |
US4954388A (en) * | 1988-11-30 | 1990-09-04 | Mallouk Robert S | Fabric reinforced composite membrane |
US4983434A (en) * | 1989-04-07 | 1991-01-08 | W. L. Gore & Associates, Inc. | Filter laminates |
JPH02277529A (ja) * | 1989-04-20 | 1990-11-14 | Japan Gore Tex Inc | 浸透気化法用分離膜およびその分離方法 |
-
1992
- 1992-02-10 US US07/833,122 patent/US5366631A/en not_active Expired - Lifetime
-
1993
- 1993-01-13 GB GB9300552A patent/GB2263883B/en not_active Expired - Fee Related
- 1993-02-05 FR FR9301303A patent/FR2687160B1/fr not_active Expired - Fee Related
- 1993-02-09 IT ITMI930220A patent/IT1270864B/it active IP Right Grant
- 1993-02-09 DE DE4303765A patent/DE4303765C2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5366631A (en) | 1994-11-22 |
FR2687160A1 (fr) | 1993-08-13 |
FR2687160B1 (fr) | 1995-05-05 |
GB2263883B (en) | 1995-07-19 |
DE4303765C2 (de) | 2000-04-13 |
DE4303765A1 (it) | 1993-09-09 |
ITMI930220A0 (it) | 1993-02-09 |
ITMI930220A1 (it) | 1994-08-09 |
GB9300552D0 (en) | 1993-03-03 |
GB2263883A (en) | 1993-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
IT1270864B (it) | Mezzi compositi supportati e microporosi comprendenti un fluoropolimero procedimento per la loro preparazione e loro impiego | |
ATE265882T1 (de) | Filtervorrichtung für biologische fluide mit einem leukocyten abreichernden medium | |
BR8602350A (pt) | Processo para filtrar fluidos,estrutura de membrana composita e processo para sua preparacao | |
IT8020489A0 (it) | Procedimento per la formazione di elettrodi sulle superficie di membrane semipermeabili e sistemi elettrodo-membrana cosi' prodotti. | |
IT1270457B (it) | Sistema e procedimento automatizzati per il trattamento di fluido biologico | |
BE865875A (fr) | Procede de fabrication de membranes minerales permeables. | |
AU560398B2 (en) | Composite dense membrane, production of and use for fluid separation | |
FR2465508B1 (fr) | Membranes poreuses contenant du polyacrylonitrile modifie, pour l'ultrafiltration, procede de preparation de celles-ci et applications desdites membranes | |
ATE174527T1 (de) | Membran für die isolierung von viren aus lösungen | |
DE69025409T2 (de) | Hochdruckdichtung für alkalizellen | |
EP0297389A3 (en) | Diagnostic-test support and process for its manufacture | |
BE903395A (fr) | Fibre creuse membranaire et procede pour la fabriquer | |
ATE27231T1 (de) | Membranmodul und seine verwendung zur trennung von fluessigkeiten nach dem pervaporationsverfahren. | |
IT1274357B (it) | Sistema per il trattamento di un fluido biologico | |
ATE189970T1 (de) | Anorganisches mehrkanal-filterelement zum filtrieren von fluiden | |
IT8567140A0 (it) | Procedimento perfezionato per laproduzione di proteine particolarmente anticorpi con l impiego dimezzi ipertonici e mezzo ipertonico per l attuazione di tale procedimento | |
FR2678177B1 (fr) | Membrane inorganique pour la filtration et, unite de filtration obtenue. | |
BR8203290A (pt) | Processo para a separacao de misturas gasosas por meio da tecnica de mudanca de pressao | |
FI970941A (fi) | Menetelmä ja järjestelmä liuenneen aineen uuttamiseksi juoksevasta aineesta käyttäen tiheää kaasua ja huokoista kalvoa | |
IT1152137B (it) | Diaframma, procedimento per la sua realizzazione, e procedimento di elettrolisi impiegante tale diaframma | |
ATE57100T1 (de) | Biologisch-kuenstlicher pankreas unter verwendung von ultrafiltration. | |
IL77419A (en) | Production of structures having membranes with continuous pores,method of altering the effective pore size of such structures and the use of structures thus produced or altered | |
DE69410264D1 (de) | Herstellungsverfahren für gastrennungsverbundmembranen | |
FR2561538B1 (fr) | Membrane pour la separation selective de gaz | |
IT8604810A0 (it) | Profilati compositi per serramenti e sistema per la produzione deglistessi. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19970227 |