IT1077372B - Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa - Google Patents

Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa

Info

Publication number
IT1077372B
IT1077372B IT2180277A IT2180277A IT1077372B IT 1077372 B IT1077372 B IT 1077372B IT 2180277 A IT2180277 A IT 2180277A IT 2180277 A IT2180277 A IT 2180277A IT 1077372 B IT1077372 B IT 1077372B
Authority
IT
Italy
Prior art keywords
refinements
cellulose
synthetic fibers
mixture filters
filters
Prior art date
Application number
IT2180277A
Other languages
English (en)
Italian (it)
Inventor
Karl Schlipfinger
Giuliano Giusti
Emilio Martini
Lino Credali
Original Assignee
Montedison Spa
Omniafiltra Cartiera Del Toran
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 Montedison Spa, Omniafiltra Cartiera Del Toran filed Critical Montedison Spa
Priority to IT2180277A priority Critical patent/IT1077372B/it
Priority to DE19782813356 priority patent/DE2813356A1/de
Application granted granted Critical
Publication of IT1077372B publication Critical patent/IT1077372B/it

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)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Filtering Materials (AREA)
IT2180277A 1977-03-29 1977-03-29 Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa IT1077372B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT2180277A IT1077372B (it) 1977-03-29 1977-03-29 Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa
DE19782813356 DE2813356A1 (de) 1977-03-29 1978-03-28 Verbesserung von filtern auf der basis einer mischung von synthetischen fasern mit cellulose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2180277A IT1077372B (it) 1977-03-29 1977-03-29 Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa

Publications (1)

Publication Number Publication Date
IT1077372B true IT1077372B (it) 1985-05-04

Family

ID=11187034

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2180277A IT1077372B (it) 1977-03-29 1977-03-29 Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa

Country Status (2)

Country Link
DE (1) DE2813356A1 (de)
IT (1) IT1077372B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH640146A5 (de) * 1979-05-14 1983-12-30 Meyer Maschinenfabrik Ag Filtrationsverfahren.
DE3271426D1 (en) * 1982-10-22 1986-07-03 Gessner & Co Gmbh Multilayer filter material, process for making it and its use
US4661132A (en) * 1985-08-15 1987-04-28 Allied Corporation Themally formed gradient density filter
US4629474A (en) * 1985-09-06 1986-12-16 Allied Corporation Thermally formed filter
US5066319A (en) * 1989-02-08 1991-11-19 Lippold Hans Joachim Filter cartridge
DE3916838A1 (de) * 1989-05-19 1990-11-22 Lippold Hans Joachim Filtereinsatz
DE4007693C2 (de) * 1990-03-10 1993-12-23 Seitz Filter Werke Filterschicht

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH383239A (de) * 1959-09-22 1964-10-15 Mueller Paul A Filterstöpsel für Zigaretten und Verfahren zur Herstellung desselben
NL130162C (de) * 1962-08-06
AT271499B (de) * 1963-06-12 1969-06-10 Filtrox Werk Ag Filterschicht
CA1044615A (en) * 1974-01-30 1978-12-19 Minnesota Mining And Manufacturing Company Low pressure drop filter medium
IT1074822B (it) * 1977-01-21 1985-04-20 Montedison Spa Preparazione di filtri con l'impiego di fibre sintetiche
DE2750590A1 (de) * 1977-11-11 1979-05-17 Schoeller & Hoesch Kg Poroeses filterpapier, sowie zwischenprodukt und verfahren zu seiner herstellung

Also Published As

Publication number Publication date
DE2813356A1 (de) 1978-10-12
DE2813356C2 (de) 1988-03-17

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Legal Events

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

Effective date: 19950314