WO2007041310A3 - Coalescing filtration medium and process - Google Patents

Coalescing filtration medium and process Download PDF

Info

Publication number
WO2007041310A3
WO2007041310A3 PCT/US2006/038095 US2006038095W WO2007041310A3 WO 2007041310 A3 WO2007041310 A3 WO 2007041310A3 US 2006038095 W US2006038095 W US 2006038095W WO 2007041310 A3 WO2007041310 A3 WO 2007041310A3
Authority
WO
WIPO (PCT)
Prior art keywords
filtration medium
coalescing filtration
nanofiber layer
nanofiber
coalescing
Prior art date
Application number
PCT/US2006/038095
Other languages
French (fr)
Other versions
WO2007041310A2 (en
Inventor
David Charles Jones
Hyun Sung Lim
Karsten Keller
Original Assignee
Du Pont
David Charles Jones
Hyun Sung Lim
Karsten Keller
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 Du Pont, David Charles Jones, Hyun Sung Lim, Karsten Keller filed Critical Du Pont
Priority to DE602006021461T priority Critical patent/DE602006021461D1/en
Priority to EP06825260A priority patent/EP1954373B1/en
Priority to JP2008533668A priority patent/JP4785928B2/en
Priority to KR1020087010271A priority patent/KR101428818B1/en
Priority to CN2006800353628A priority patent/CN101272841B/en
Priority to BRPI0617575-9A priority patent/BRPI0617575A2/en
Publication of WO2007041310A2 publication Critical patent/WO2007041310A2/en
Publication of WO2007041310A3 publication Critical patent/WO2007041310A3/en

Links

Classifications

    • 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
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025—Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • 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
    • 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
    • B32B2262/0261—Polyamide 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/728—Hydrophilic
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/73—Hydrophobic

Abstract

A coalescing filtration medium is disclosed for removing liquid aerosols, oil and/or water from a gas stream. The medium contains a nanofiber web of at least one nanofiber layer of continuous, substantially polyolefin-free, polymeric nanofibers, each nanofiber layer having an average fiber diameter less than about 800 nm and having a basis weight of at least about 2.5 g/m2.
PCT/US2006/038095 2005-09-30 2006-09-29 Coalescing filtration medium and process WO2007041310A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE602006021461T DE602006021461D1 (en) 2005-09-30 2006-09-29 COALIZING FILTRATION MEDIUM AND METHOD
EP06825260A EP1954373B1 (en) 2005-09-30 2006-09-29 Coalescing filtration medium and process
JP2008533668A JP4785928B2 (en) 2005-09-30 2006-09-29 Agglomerated filter media and method
KR1020087010271A KR101428818B1 (en) 2005-09-30 2006-09-29 Coalescing filtration medium and process
CN2006800353628A CN101272841B (en) 2005-09-30 2006-09-29 Coalescing filtration medium and process
BRPI0617575-9A BRPI0617575A2 (en) 2005-09-30 2006-09-29 coalescent filtration media and process of removing liquid, oil and / or water aerosols from a gas stream

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/241,598 US20070074628A1 (en) 2005-09-30 2005-09-30 Coalescing filtration medium and process
US11/241,598 2005-09-30

Publications (2)

Publication Number Publication Date
WO2007041310A2 WO2007041310A2 (en) 2007-04-12
WO2007041310A3 true WO2007041310A3 (en) 2007-06-14

Family

ID=37900692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/038095 WO2007041310A2 (en) 2005-09-30 2006-09-29 Coalescing filtration medium and process

Country Status (8)

Country Link
US (1) US20070074628A1 (en)
EP (1) EP1954373B1 (en)
JP (1) JP4785928B2 (en)
KR (1) KR101428818B1 (en)
CN (1) CN101272841B (en)
BR (1) BRPI0617575A2 (en)
DE (1) DE602006021461D1 (en)
WO (1) WO2007041310A2 (en)

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Also Published As

Publication number Publication date
KR20080060264A (en) 2008-07-01
EP1954373A2 (en) 2008-08-13
BRPI0617575A2 (en) 2011-07-26
EP1954373B1 (en) 2011-04-20
US20070074628A1 (en) 2007-04-05
JP4785928B2 (en) 2011-10-05
DE602006021461D1 (en) 2011-06-01
CN101272841B (en) 2012-03-07
JP2009509753A (en) 2009-03-12
KR101428818B1 (en) 2014-08-12
CN101272841A (en) 2008-09-24
WO2007041310A2 (en) 2007-04-12

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