IT1029389B - Elemento filtrante per aria o gas a bassa caduta di pressione - Google Patents

Elemento filtrante per aria o gas a bassa caduta di pressione

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
English (en)
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/it

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 Elemento filtrante per aria o gas a bassa caduta di pressione IT1029389B (it)

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 (it) 1979-03-10

Family

ID=23738304

Family Applications (1)

Application Number Title Priority Date Filing Date
IT47904/75A IT1029389B (it) 1974-01-30 1975-01-29 Elemento filtrante per aria o gas a bassa caduta di pressione

Country Status (6)

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

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 (it) * 1977-03-29 1985-05-04 Montedison Spa Perfezionamenti nei filtri a base di miscele di fibre sintetiche con cellulosa
JPS54112071A (en) * 1978-02-22 1979-09-01 Mitsui Petrochemical Ind Method of filtering liquid
JPS6022100B2 (ja) * 1978-05-01 1985-05-31 東亜燃料工業株式会社 不織布の製造法
JPS6056825B2 (ja) * 1978-05-01 1985-12-12 東亜燃料工業株式会社 不織布の製造法
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 (de) * 1984-08-01 1986-02-06 Düpro AG, Romanshorn Luftreinigungsgeraet
DE3517923A1 (de) * 1985-05-18 1986-11-27 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Verfahren zur herstellung von natuerlich duftender atemluft
US4714647A (en) * 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
JPH0729010B2 (ja) * 1986-12-16 1995-04-05 富士通株式会社 電子写真装置
DE3731575A1 (de) * 1987-09-19 1989-03-30 Freudenberg Carl Fa Filterpack
DE3812849C3 (de) * 1988-04-18 1996-03-21 Gessner & Co Gmbh Staubfilterbeutel, dessen Herstellung und Verwendung
IT216762Z2 (it) * 1989-07-19 1991-10-03 Alcantara Spa Articolo accoppiato, contenente uno strato di materiale non tessuto microfibroso, utile nel settore dell'arredamento e dei trasporti.
JPH02289161A (ja) * 1989-08-03 1990-11-29 Toray Ind Inc ミクロフィルター用積層不織布シートの製造方法
JPH0493020U (da) * 1989-12-25 1992-08-13
DE4134222C2 (de) * 1991-10-16 2002-09-19 Mhb Filtration Gmbh & Co Kg Filter für Fahrgastzellen
DE4212112A1 (de) * 1992-04-10 1993-10-14 Sandler C H Gmbh Mehrschichtiges Filtermaterial
US5350443B2 (en) * 1993-04-19 1999-08-10 Von Hasso Bluecher Filter sheet material for passenger cabins in motor vehicles
DE19605863A1 (de) * 1996-02-16 1997-08-21 Reemtsma H F & Ph Cigarettenfilter
AP2006003861A0 (en) * 2004-06-09 2006-12-31 Pathogen Removal And Diagnosti Particles embedded in a porous substrate for removing target analyte from a sample
US20070074628A1 (en) * 2005-09-30 2007-04-05 Jones David C Coalescing filtration medium and process
DE102006017553B3 (de) 2006-04-13 2007-12-27 Eurofilters N.V. Filterbeutel für einen Staubsauger
CN103760065B (zh) * 2013-06-28 2016-01-06 中国石油化工股份有限公司 一种聚合物溶液流动有效视粘度的测试方法及其测试系统
DE102016125182A1 (de) * 2016-12-21 2018-06-21 Groz-Beckert Kg Verfahren zur Herstellung von Fasern und Vliesstoffen durch Solution-Blow-Spinnen und damit hergestellter Vliesstoff

Family Cites Families (1)

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

Also Published As

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

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