WO2010026133A3 - A high-strength and high-accumulation capacity multi-layer filter medium and a process for realisation thereof - Google Patents

A high-strength and high-accumulation capacity multi-layer filter medium and a process for realisation thereof Download PDF

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Publication number
WO2010026133A3
WO2010026133A3 PCT/EP2009/061259 EP2009061259W WO2010026133A3 WO 2010026133 A3 WO2010026133 A3 WO 2010026133A3 EP 2009061259 W EP2009061259 W EP 2009061259W WO 2010026133 A3 WO2010026133 A3 WO 2010026133A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter medium
realisation
strength
layer filter
nonwoven fabric
Prior art date
Application number
PCT/EP2009/061259
Other languages
French (fr)
Other versions
WO2010026133A2 (en
Inventor
Giorgio Girondi
Original Assignee
Ufi Innovation Center S.R.L.
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 Ufi Innovation Center S.R.L. filed Critical Ufi Innovation Center S.R.L.
Priority to EP09782444A priority Critical patent/EP2318113A2/en
Publication of WO2010026133A2 publication Critical patent/WO2010026133A2/en
Publication of WO2010026133A3 publication Critical patent/WO2010026133A3/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
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • 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
    • B01D2239/10—Filtering material manufacturing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Filtering Materials (AREA)

Abstract

A multilayer filter medium comprising, from upstream to downstream relative to a direction of filtration, at least a first layer made of glass fibre (C, C'), a second intermediate layer made of coarse mesh nonwoven fabric (D, D') and a third support layer (E, E') made of nonwoven fabric, characterized in that the intermediate layer (D, D') of coarse mesh nonwoven fabric is joined by fusion and/or bonding both to the first layer in glass fibre (C, C') and to the third support layer (E, E') in nonwoven fabric. The object of the invention includes a process for realizing a multilayer filter medium.
PCT/EP2009/061259 2008-09-05 2009-09-01 A high-strength and high-accumulation capacity multi-layer filter medium and a process for realisation thereof WO2010026133A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09782444A EP2318113A2 (en) 2008-09-05 2009-09-01 A high-strength and high-accumulation capacity multi-layer filter medium and a process for realisation thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000081A ITRE20080081A1 (en) 2008-09-05 2008-09-05 HIGH-STRENGTH MULTILAYER FILTERING MEDIUM AND ACCUMULATION CAPACITY AND PROCEDURE FOR ITS REALIZATION
ITRE2008A000081 2008-09-05

Publications (2)

Publication Number Publication Date
WO2010026133A2 WO2010026133A2 (en) 2010-03-11
WO2010026133A3 true WO2010026133A3 (en) 2010-04-29

Family

ID=40875214

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/061259 WO2010026133A2 (en) 2008-09-05 2009-09-01 A high-strength and high-accumulation capacity multi-layer filter medium and a process for realisation thereof

Country Status (3)

Country Link
EP (1) EP2318113A2 (en)
IT (1) ITRE20080081A1 (en)
WO (1) WO2010026133A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324574A (en) * 1980-12-19 1982-04-13 E. I. Du Pont De Nemours And Company Felt-like layered composite of PTFE and glass paper
US5399422A (en) * 1989-12-23 1995-03-21 Akzo N.V. Laminate
US20050006301A1 (en) * 2003-07-07 2005-01-13 Reemay, Inc. Wetlaid-spunbond laminate membrane support

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06290798A (en) 1993-02-08 1994-10-18 Fuji Electric Co Ltd Solid-state electrolytic type fuel cell

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4324574A (en) * 1980-12-19 1982-04-13 E. I. Du Pont De Nemours And Company Felt-like layered composite of PTFE and glass paper
US5399422A (en) * 1989-12-23 1995-03-21 Akzo N.V. Laminate
US20050006301A1 (en) * 2003-07-07 2005-01-13 Reemay, Inc. Wetlaid-spunbond laminate membrane support

Also Published As

Publication number Publication date
WO2010026133A2 (en) 2010-03-11
ITRE20080081A1 (en) 2010-03-06
EP2318113A2 (en) 2011-05-11

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