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 impiego

Info

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
Application number
ITMI930220A
Other languages
English (en)
Inventor
Joseph G Adiletta
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
Publication of ITMI930220A0 publication Critical patent/ITMI930220A0/it
Publication of ITMI930220A1 publication Critical patent/ITMI930220A1/it
Application granted granted Critical
Publication of IT1270864B publication Critical patent/IT1270864B/it

Links

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
    • 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—Polytetrafluoroethylene
    • 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.
ITMI930220A 1992-02-10 1993-02-09 Mezzi compositi supportati e microporosi comprendenti un fluoropolimero procedimento per la loro preparazione e loro impiego IT1270864B (it)

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)

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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
RU2149051C1 (ru) * 1998-06-22 2000-05-20 Индивидуальное частное предприятие "Промышленно-коммерческое предприятие "Филдис" Хуснетдинова Состав керамического фильтра
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
WO2004016341A2 (en) * 2002-08-14 2004-02-26 Pall Corporation Fluoropolymer membrane
US12172111B2 (en) 2004-11-05 2024-12-24 Donaldson Company, Inc. Filter medium and breather filter structure
US8021457B2 (en) 2004-11-05 2011-09-20 Donaldson Company, Inc. Filter media and structure
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
CA2945592C (en) 2004-11-05 2020-01-07 Donaldson Company, Inc. Filter medium and structure
DE102004055542A1 (de) * 2004-11-17 2006-05-18 Basf Ag Verfahren zur Herstellung einer feinteiligen Emulsion aus einer Rohemulsion
US8177875B2 (en) 2005-02-04 2012-05-15 Donaldson Company, Inc. Aerosol separator; and method
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
JP2010529902A (ja) 2007-02-22 2010-09-02 ドナルドソン カンパニー インコーポレイテッド フイルタ要素及び方法
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
US8267681B2 (en) 2009-01-28 2012-09-18 Donaldson Company, Inc. Method and apparatus for forming a fibrous media
US8790432B2 (en) * 2012-04-27 2014-07-29 W. L. Gore & Associates, Inc. Seam-sealed filters and methods of making thereof
WO2014084860A1 (en) * 2012-11-30 2014-06-05 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
ES2955106T3 (es) * 2016-04-07 2023-11-28 Univ North Carolina State Muestreador pasivo
IL298078B2 (en) * 2020-05-15 2024-08-01 Entegris Inc A method for creating a single-layer composite membrane with lamination

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Also Published As

Publication number Publication date
DE4303765A1 (it) 1993-09-09
US5366631A (en) 1994-11-22
FR2687160B1 (fr) 1995-05-05
ITMI930220A0 (it) 1993-02-09
ITMI930220A1 (it) 1994-08-09
GB2263883B (en) 1995-07-19
FR2687160A1 (fr) 1993-08-13
GB9300552D0 (en) 1993-03-03
DE4303765C2 (de) 2000-04-13
GB2263883A (en) 1993-08-11

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970227