IT1029389B - FILTERING ELEMENT FOR AIR OR GAS WITH LOW PRESSURE DROP - Google Patents

FILTERING ELEMENT FOR AIR OR GAS WITH LOW PRESSURE DROP

Info

Publication number
IT1029389B
IT1029389B IT47904/75A IT4790475A IT1029389B IT 1029389 B IT1029389 B IT 1029389B IT 47904/75 A IT47904/75 A IT 47904/75A IT 4790475 A IT4790475 A IT 4790475A IT 1029389 B IT1029389 B IT 1029389B
Authority
IT
Italy
Prior art keywords
gas
air
low pressure
pressure drop
filtering element
Prior art date
Application number
IT47904/75A
Other languages
Italian (it)
Original Assignee
Minnesota Mining & Mfg
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 Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Application granted granted Critical
Publication of IT1029389B publication Critical patent/IT1029389B/en

Links

Classifications

    • 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
    • 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
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/026—Porous

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
IT47904/75A 1974-01-30 1975-01-29 FILTERING ELEMENT FOR AIR OR GAS WITH LOW PRESSURE DROP IT1029389B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43788074A 1974-01-30 1974-01-30

Publications (1)

Publication Number Publication Date
IT1029389B true IT1029389B (en) 1979-03-10

Family

ID=23738304

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47904/75A IT1029389B (en) 1974-01-30 1975-01-29 FILTERING ELEMENT FOR AIR OR GAS WITH LOW PRESSURE DROP

Country Status (6)

Country Link
JP (1) JPS6036807B2 (en)
CA (1) CA1044615A (en)
DE (1) DE2503615C2 (en)
FR (1) FR2258888B1 (en)
GB (1) GB1481666A (en)
IT (1) IT1029389B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188197A (en) * 1975-09-25 1980-02-12 Dennison Manufacturing Company Particulate filtering
IT1077372B (en) * 1977-03-29 1985-05-04 Montedison Spa REFINEMENTS IN MIXTURE FILTERS OF SYNTHETIC FIBERS WITH CELLULOSE
JPS54112071A (en) * 1978-02-22 1979-09-01 Mitsui Petrochemical Ind Method of filtering liquid
JPS6056825B2 (en) * 1978-05-01 1985-12-12 東亜燃料工業株式会社 Manufacturing method of nonwoven fabric
JPS6022100B2 (en) * 1978-05-01 1985-05-31 東亜燃料工業株式会社 Manufacturing method of nonwoven fabric
JPS5624013A (en) * 1979-05-04 1981-03-07 Nitta Kk Structure of air filter element
US4548628A (en) * 1982-04-26 1985-10-22 Asahi Kasei Kogyo Kabushiki Kaisha Filter medium and process for preparing same
US4436780A (en) * 1982-09-02 1984-03-13 Kimberly-Clark Corporation Nonwoven wiper laminate
DE3428359A1 (en) * 1984-08-01 1986-02-06 Düpro AG, Romanshorn Air-cleaning device
DE3517923A1 (en) * 1985-05-18 1986-11-27 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Method of producing naturally scented breathing air
US4714647A (en) * 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
JPH0729010B2 (en) * 1986-12-16 1995-04-05 富士通株式会社 Electrophotographic device
DE3731575A1 (en) * 1987-09-19 1989-03-30 Freudenberg Carl Fa FILTER PACK
DE3812849C3 (en) * 1988-04-18 1996-03-21 Gessner & Co Gmbh Dust filter bag, its manufacture and use
IT216762Z2 (en) * 1989-07-19 1991-10-03 Alcantara Spa COUPLED ITEM, CONTAINING A LAYER OF NON-WOVEN MICROFIBROUS MATERIAL, USEFUL IN THE FURNITURE AND TRANSPORT SECTOR.
JPH02289161A (en) * 1989-08-03 1990-11-29 Toray Ind Inc Production of laminated nonwoven fabric sheet for microfilter
JPH0493020U (en) * 1989-12-25 1992-08-13
DE4134222C2 (en) * 1991-10-16 2002-09-19 Mhb Filtration Gmbh & Co Kg Filters for passenger compartments
DE4212112A1 (en) * 1992-04-10 1993-10-14 Sandler C H Gmbh Multi-layer filter material
US5350443B2 (en) * 1993-04-19 1999-08-10 Von Hasso Bluecher Filter sheet material for passenger cabins in motor vehicles
DE19605863A1 (en) * 1996-02-16 1997-08-21 Reemtsma H F & Ph Cigarette filter
EP1766069B1 (en) * 2004-06-09 2017-03-08 Pathogen Removal And Diagnostic Technologies Inc. Devices and methods for removing target agents from a sample
US20070074628A1 (en) * 2005-09-30 2007-04-05 Jones David C Coalescing filtration medium and process
DE102006017553B3 (en) 2006-04-13 2007-12-27 Eurofilters N.V. Filter bag for a vacuum cleaner
CN103760065B (en) * 2013-06-28 2016-01-06 中国石油化工股份有限公司 A kind of method of testing of polymer solution flow effective apparent viscosity and test macro thereof
DE102016125182A1 (en) * 2016-12-21 2018-06-21 Groz-Beckert Kg Process for producing fibers and nonwovens by solution blow spinning and nonwoven fabric made therewith

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5316696Y2 (en) * 1971-12-03 1978-05-02

Also Published As

Publication number Publication date
CA1044615A (en) 1978-12-19
FR2258888A1 (en) 1975-08-22
JPS50108677A (en) 1975-08-27
FR2258888B1 (en) 1981-12-11
GB1481666A (en) 1977-08-03
DE2503615C2 (en) 1986-10-23
JPS6036807B2 (en) 1985-08-22
DE2503615A1 (en) 1975-07-31

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