ATE175895T1 - Filter - Google Patents

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Publication number
ATE175895T1
ATE175895T1 AT91906029T AT91906029T ATE175895T1 AT E175895 T1 ATE175895 T1 AT E175895T1 AT 91906029 T AT91906029 T AT 91906029T AT 91906029 T AT91906029 T AT 91906029T AT E175895 T1 ATE175895 T1 AT E175895T1
Authority
AT
Austria
Prior art keywords
filter
layer
medium
electrostatic properties
micron
Prior art date
Application number
AT91906029T
Other languages
English (en)
Inventor
Bernard Hoppitt
Bo Engvall
Original Assignee
Interfilta Limited
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 Interfilta Limited filed Critical Interfilta Limited
Application granted granted Critical
Publication of ATE175895T1 publication Critical patent/ATE175895T1/de

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
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28—Plant or installations without electricity supply, e.g. using electrets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Centrifugal Separators (AREA)
AT91906029T 1990-03-19 1991-03-19 Filter ATE175895T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909006146A GB9006146D0 (en) 1990-03-19 1990-03-19 Filter

Publications (1)

Publication Number Publication Date
ATE175895T1 true ATE175895T1 (de) 1999-02-15

Family

ID=10672864

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91906029T ATE175895T1 (de) 1990-03-19 1991-03-19 Filter

Country Status (8)

Country Link
EP (1) EP0521033B1 (de)
JP (1) JPH05505761A (de)
AT (1) ATE175895T1 (de)
AU (1) AU641744B2 (de)
CA (1) CA2078661C (de)
DE (1) DE69130797T2 (de)
GB (2) GB9006146D0 (de)
WO (1) WO1991014503A1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994012262A1 (en) * 1992-11-23 1994-06-09 W.L. Gore & Associates, Inc. Triboelectric filtration material
CA2124237C (en) 1994-02-18 2004-11-02 Bernard Cohen Improved nonwoven barrier and method of making the same
US5834386A (en) * 1994-06-27 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven barrier
CA2136576C (en) 1994-06-27 2005-03-08 Bernard Cohen Improved nonwoven barrier and method of making the same
PL319975A1 (en) * 1994-10-31 1997-09-01 Kimberly Clark Co Non-woven high-density filtering materials
WO1996017569A2 (en) 1994-12-08 1996-06-13 Kimberly-Clark Worldwide, Inc. Method of forming a particle size gradient in an absorbent article
CA2153278A1 (en) 1994-12-30 1996-07-01 Bernard Cohen Nonwoven laminate barrier material
GB9510234D0 (en) * 1995-05-20 1995-07-19 Advanced Allergy Technologies Allergen particle exclusion and/or retention covering
WO1996037276A1 (en) * 1995-05-25 1996-11-28 Kimberly-Clark Worldwide, Inc. Filter matrix
ZA965786B (en) 1995-07-19 1997-01-27 Kimberly Clark Co Nonwoven barrier and method of making the same
US5834384A (en) 1995-11-28 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven webs with one or more surface treatments
GB2329598B (en) * 1997-09-25 2001-04-18 Racal Health & Safety Ltd Filters
US6537932B1 (en) 1997-10-31 2003-03-25 Kimberly-Clark Worldwide, Inc. Sterilization wrap, applications therefor, and method of sterilizing
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2048110A (en) * 1936-01-04 1936-07-21 William H Fry Swing
GB1170442A (en) * 1966-02-11 1969-11-12 Tecalemit Engineering Filters for Gases
JPS5624013A (en) * 1979-05-04 1981-03-07 Nitta Kk Structure of air filter element
FR2480807A1 (fr) * 1980-04-18 1981-10-23 Seplast Sa Procede de traitement superficiel d'une couche filtrante fibreuse, non tissee et tres aeree, formant electret et son application aux filtres et aux masques respiratoires notamment
US4376642A (en) * 1980-08-18 1983-03-15 Biotech Electronics Ltd. Portable air cleaner unit
DE3337031A1 (de) * 1983-10-12 1985-09-05 Fa. Carl Freudenberg, 6940 Weinheim Chirurgische gesichtsmaske
GB2149686A (en) * 1983-10-26 1985-06-19 Ti Domestic Appliances Ltd Gas filters and apparatus
JPH01168364A (ja) * 1987-12-24 1989-07-03 Toray Ind Inc 濾過方法
CH676087A5 (de) * 1988-10-25 1990-12-14 Periso S A Elektro Ind

Also Published As

Publication number Publication date
EP0521033A1 (de) 1993-01-07
GB9105793D0 (en) 1991-05-01
GB2242142B (en) 1993-05-05
GB2242142A (en) 1991-09-25
DE69130797T2 (de) 1999-07-22
DE69130797D1 (en) 1999-03-04
AU641744B2 (en) 1993-09-30
GB9006146D0 (en) 1990-05-16
WO1991014503A1 (en) 1991-10-03
CA2078661C (en) 2000-01-18
AU7496691A (en) 1991-10-21
EP0521033B1 (de) 1999-01-20
JPH05505761A (ja) 1993-08-26
CA2078661A1 (en) 1991-09-20

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