BR0305023A - Meio de filtragem - Google Patents

Meio de filtragem

Info

Publication number
BR0305023A
BR0305023A BR0305023-8A BR0305023A BR0305023A BR 0305023 A BR0305023 A BR 0305023A BR 0305023 A BR0305023 A BR 0305023A BR 0305023 A BR0305023 A BR 0305023A
Authority
BR
Brazil
Prior art keywords
fibers
linker
cross
layer
melt
Prior art date
Application number
BR0305023-8A
Other languages
English (en)
Inventor
Beate Heinz
Immo Schnieders
Original Assignee
Hollingsworth & Vose Gmbh & Co
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 Hollingsworth & Vose Gmbh & Co filed Critical Hollingsworth & Vose Gmbh & Co
Publication of BR0305023A publication Critical patent/BR0305023A/pt

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Glass Compositions (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filters For Electric Vacuum Cleaners (AREA)

Abstract

"MEIO DE FILTRAGEM". A presente invenção está relacionada a um meio de filtragem (10) que está adaptado para reter de maneira eficaz não apenas micropartículas mas também partículas na faixa dos nanometros. O meio da presente invenção consiste de pelo menos uma camada de material (20) e pelo menos uma camada de estrutura fina (30), através da qual são utilizadas a primeira camada de fibras de celulose preferencialmente interligadas e fibras de micro-vidro mas também fibras à base de polímero. O diâmetro das fibras da acamada de material (20) se encontra na faixa dos micrometros e os poros da referida camada apresentam em sua maioria diâmetros na faixa dos micrometros quadrados. A estrutura de fibras de peso bastante reduzido com pesos por unidade da ordem de 1 g/m^ 2^ apresenta espaços intermediários até a faixa dos nanómetros e é termoestável em temperaturas acima dos 180<198>C. Consiste de fibras (4) que são obtidas a partir de polímeros por meio de carregamento eletrostático e apresentam diâmetros na faixa dos nanómetros. A fim de efetuar a ligação cruzada individual destas fibras (40) entre si ou com a camada de material (20), tornando-as assim insolúveis em água, e estáveis tanto química quanto termicamente, são utilizadas diversas resinas, como por exemplo resinas de melamina. A fim de prover proteção e estabilidade, o meio de filtragem (10) pode ser suplementado por camadas de suporte e/ou cobertura.
BR0305023-8A 2002-05-28 2003-05-28 Meio de filtragem BR0305023A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02011827A EP1366791B1 (de) 2002-05-28 2002-05-28 Filtermedium
PCT/EP2003/005626 WO2003099415A1 (de) 2002-05-28 2003-05-28 Filtermedium

Publications (1)

Publication Number Publication Date
BR0305023A true BR0305023A (pt) 2005-01-25

Family

ID=29414704

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0305023-8A BR0305023A (pt) 2002-05-28 2003-05-28 Meio de filtragem

Country Status (9)

Country Link
US (1) US20050235619A1 (pt)
EP (1) EP1366791B1 (pt)
JP (1) JP2005527358A (pt)
AT (1) ATE390197T1 (pt)
AU (1) AU2003273167A1 (pt)
BR (1) BR0305023A (pt)
CA (1) CA2487164A1 (pt)
DE (1) DE50211962D1 (pt)
WO (1) WO2003099415A1 (pt)

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Also Published As

Publication number Publication date
EP1366791B1 (de) 2008-03-26
EP1366791A1 (de) 2003-12-03
US20050235619A1 (en) 2005-10-27
CA2487164A1 (en) 2003-12-04
ATE390197T1 (de) 2008-04-15
DE50211962D1 (de) 2008-05-08
WO2003099415A1 (de) 2003-12-04
JP2005527358A (ja) 2005-09-15
AU2003273167A1 (en) 2003-12-12

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