BR9401208A - Meio de filtro de eletreto, resistente a névoa oleosa, e, processo para filtrar material em partículas de ar que contém partículas de aerossol oleosas - Google Patents

Meio de filtro de eletreto, resistente a névoa oleosa, e, processo para filtrar material em partículas de ar que contém partículas de aerossol oleosas

Info

Publication number
BR9401208A
BR9401208A BR9401208A BR9401208A BR9401208A BR 9401208 A BR9401208 A BR 9401208A BR 9401208 A BR9401208 A BR 9401208A BR 9401208 A BR9401208 A BR 9401208A BR 9401208 A BR9401208 A BR 9401208A
Authority
BR
Brazil
Prior art keywords
oily
resistant
filter medium
filtering material
fog
Prior art date
Application number
BR9401208A
Other languages
English (en)
Inventor
Marvin E Jones
Alan D Rousseau
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
Publication of BR9401208A publication Critical patent/BR9401208A/pt

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION 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
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28Plant or installations without electricity supply, e.g. using electrets
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00Use of organic ingredients
    • C08K5/36Sulfur-, selenium-, or tellurium-containing compounds
    • C08K5/41Compounds containing sulfur bound to oxygen
    • C08K5/42Sulfonic acids; Derivatives thereof
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0407Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0435Electret
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604Arrangement of the fibres in the filtering material
    • B01D2239/0622Melt-blown
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1225Fibre length
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1233Fibre diameter
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12Special parameters characterising the filtering material
    • B01D2239/1291Other parameters
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00Gas separation
    • Y10S55/39Electrets separator

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
BR9401208A 1993-03-26 1994-03-18 Meio de filtro de eletreto, resistente a névoa oleosa, e, processo para filtrar material em partículas de ar que contém partículas de aerossol oleosas BR9401208A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3814593A 1993-03-26 1993-03-26

Publications (1)

Publication Number Publication Date
BR9401208A true BR9401208A (pt) 1994-11-08

Family

ID=21898311

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9401208A BR9401208A (pt) 1993-03-26 1994-03-18 Meio de filtro de eletreto, resistente a névoa oleosa, e, processo para filtrar material em partículas de ar que contém partículas de aerossol oleosas

Country Status (9)

Country Link
US (2) US5411576A (pt)
EP (1) EP0616831B1 (pt)
JP (1) JP3464520B2 (pt)
KR (1) KR100336186B1 (pt)
AU (1) AU669420B2 (pt)
BR (1) BR9401208A (pt)
CA (1) CA2116983C (pt)
DE (1) DE69419272T2 (pt)
ES (1) ES2135498T3 (pt)

Families Citing this family (145)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
WO1995005501A2 (en) * 1993-08-17 1995-02-23 Minnesota Mining And Manufacturing Company Method of charging electret filter media
CA2124237C (en) 1994-02-18 2004-11-02 Bernard Cohen Improved nonwoven barrier and method of making the same
CA2136576C (en) 1994-06-27 2005-03-08 Bernard Cohen Improved nonwoven barrier and method of making the same
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
US5645627A (en) * 1995-02-28 1997-07-08 Hollingsworth & Vose Company Charge stabilized electret filter media
US5742303A (en) * 1995-05-24 1998-04-21 Hewlett-Packard Company Trap door spittoon for inkjet aerosol mist control
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
US5908598A (en) * 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
US5774141A (en) * 1995-10-26 1998-06-30 Hewlett-Packard Company Carriage-mounted inkjet aerosol reduction system
US5834384A (en) 1995-11-28 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven webs with one or more surface treatments
US5667562A (en) * 1996-04-19 1997-09-16 Kimberly-Clark Worldwide, Inc. Spunbond vacuum cleaner webs
GB9609811D0 (en) * 1996-05-10 1996-07-17 Web Dynamics Ltd A process for producing meltblown polyolefin fibres for mechanical filtration
US6162535A (en) 1996-05-24 2000-12-19 Kimberly-Clark Worldwide, Inc. Ferroelectric fibers and applications therefor
US5817415A (en) * 1996-09-12 1998-10-06 E. I. Du Pont De Nemours And Company Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters
US5706804A (en) * 1996-10-01 1998-01-13 Minnesota Mining And Manufacturing Company Liquid resistant face mask having surface energy reducing agent on an intermediate layer therein
DE19645666A1 (de) * 1996-11-06 1998-05-07 Mann & Hummel Filter Filtereinsatz
JP3566477B2 (ja) * 1996-12-26 2004-09-15 興研株式会社 静電フィルター
SE512593C2 (sv) * 1997-05-06 2000-04-10 Blue Air Ab Förfarande och anordning för rening av ett gasformigt medium
US6123076A (en) * 1997-05-09 2000-09-26 Porous Media Corporation Hydrophobic barrier for filters and filter media
DE19720775A1 (de) * 1997-05-17 1998-11-19 Mann & Hummel Filter Vorrichtung sowie Element zur Flüssigkeitsabscheidung in Gasströmen
US6127485A (en) * 1997-07-28 2000-10-03 3M Innovative Properties Company High temperature-stable fluorochemicals as hydrophobic and oleophobic additives to synthetic organic polymers
US6524488B1 (en) 1998-06-18 2003-02-25 3M Innovative Properties Company Method of filtering certain particles from a fluid using a depth loading filtration media
US6176239B1 (en) * 1997-08-06 2001-01-23 The United States Of America As Represented By The Secretary Of The Army Advanced chemical-biological mask
AU755573B2 (en) * 1997-10-01 2002-12-19 Minnesota Mining And Manufacturing Company Electret fibers and filter webs having a low level of extractable hydrocarbons
US6068799A (en) * 1997-10-01 2000-05-30 3M Innovative Properties Company Method of making electret articles and filters with increased oily mist resistance
AU767026B2 (en) * 1997-10-01 2003-10-30 Minnesota Mining And Manufacturing Company Oily mist resistant electret articles and filters
US6238466B1 (en) 1997-10-01 2001-05-29 3M Innovative Properties Company Electret articles and filters with increased oily mist resistance
US6213122B1 (en) * 1997-10-01 2001-04-10 3M Innovative Properties Company Electret fibers and filter webs having a low level of extractable hydrocarbons
US6062221A (en) 1997-10-03 2000-05-16 3M Innovative Properties Company Drop-down face mask assembly
US6732733B1 (en) 1997-10-03 2004-05-11 3M Innovative Properties Company Half-mask respirator with head harness assembly
US6537932B1 (en) 1997-10-31 2003-03-25 Kimberly-Clark Worldwide, Inc. Sterilization wrap, applications therefor, and method of sterilizing
GB9723740D0 (en) * 1997-11-11 1998-01-07 Minnesota Mining & Mfg Respiratory masks incorporating valves or other attached components
US5948146A (en) * 1997-12-08 1999-09-07 Ceco Filters, Inc. Hydroentangled fluoropolymer fiber bed for a mist eliminator
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs
US6759356B1 (en) 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
US6432175B1 (en) 1998-07-02 2002-08-13 3M Innovative Properties Company Fluorinated electret
US6123752A (en) * 1998-09-03 2000-09-26 3M Innovative Properties Company High efficiency synthetic filter medium
US6139308A (en) * 1998-10-28 2000-10-31 3M Innovative Properties Company Uniform meltblown fibrous web and methods and apparatus for manufacturing
US6110251A (en) * 1998-11-03 2000-08-29 Johns Manville International, Inc. Gas filtration media and method of making the same
US6280824B1 (en) 1999-01-29 2001-08-28 3M Innovative Properties Company Contoured layer channel flow filtration media
DE19903663A1 (de) * 1999-01-29 2000-08-24 Doerken Ewald Ag Verfahren zum Herstellen eines Vlieses insbesondere zur Verwendung für Unterspannbahnen für Bedachungen
US6573205B1 (en) * 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US6630231B2 (en) * 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US6110588A (en) 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6391807B1 (en) 1999-09-24 2002-05-21 3M Innovative Properties Company Polymer composition containing a fluorochemical oligomer
US7049379B2 (en) * 1999-05-11 2006-05-23 3M Innovative Properties Company Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates
US6525127B1 (en) 1999-05-11 2003-02-25 3M Innovative Properties Company Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates
US6288157B1 (en) 1999-05-11 2001-09-11 3M Innovative Properties Company Alkylated fluorochemical oligomers and use thereof
US6332465B1 (en) 1999-06-02 2001-12-25 3M Innovative Properties Company Face masks having an elastic and polyolefin thermoplastic band attached thereto by heat and pressure
US6273938B1 (en) 1999-08-13 2001-08-14 3M Innovative Properties Company Channel flow filter
US6627563B1 (en) * 1999-08-19 2003-09-30 3M Innovative Properties Company Oily-mist resistant filter that has nondecreasing efficiency
US6174964B1 (en) * 1999-09-24 2001-01-16 3M Innovative Properties Company Fluorochemical oligomer and use thereof
US6454986B1 (en) 1999-10-08 2002-09-24 3M Innovative Properties Company Method of making a fibrous electret web using a nonaqueous polar liquid
US6375886B1 (en) * 1999-10-08 2002-04-23 3M Innovative Properties Company Method and apparatus for making a nonwoven fibrous electret web from free-fiber and polar liquid
US6406657B1 (en) 1999-10-08 2002-06-18 3M Innovative Properties Company Method and apparatus for making a fibrous electret web using a wetting liquid and an aqueous polar liquid
US6454839B1 (en) 1999-10-19 2002-09-24 3M Innovative Properties Company Electrofiltration apparatus
US6604524B1 (en) * 1999-10-19 2003-08-12 3M Innovative Properties Company Manner of attaching component elements to filtration material such as may be utilized in respiratory masks
US6524360B2 (en) 2000-02-15 2003-02-25 Hollingsworth & Vose Company Melt blown composite HEPA filter media and vacuum bag
US6514325B2 (en) 2000-03-15 2003-02-04 Hollingsworth & Vose Company Melt blown composite HEPA vacuum filter
US6743464B1 (en) 2000-04-13 2004-06-01 3M Innovative Properties Company Method of making electrets through vapor condensation
US6419729B1 (en) * 2000-04-17 2002-07-16 3M Innovative Properties Company Filter assemblies with adhesive attachment systems
US6419871B1 (en) 2000-05-25 2002-07-16 Transweb, Llc. Plasma treatment of filter media
US20020092423A1 (en) * 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
US6716274B2 (en) 2000-09-05 2004-04-06 Donaldson Company, Inc. Air filter assembly for filtering an air stream to remove particulate matter entrained in the stream
US6746517B2 (en) * 2000-09-05 2004-06-08 Donaldson Company, Inc. Filter structure with two or more layers of fine fiber having extended useful service life
US6673136B2 (en) * 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
US6743273B2 (en) * 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US6740142B2 (en) 2000-09-05 2004-05-25 Donaldson Company, Inc. Industrial bag house elements
US7115150B2 (en) * 2000-09-05 2006-10-03 Donaldson Company, Inc. Mist filtration arrangement utilizing fine fiber layer in contact with media having a pleated construction and floor filter method
US6800117B2 (en) * 2000-09-05 2004-10-05 Donaldson Company, Inc. Filtration arrangement utilizing pleated construction and method
US7270693B2 (en) * 2000-09-05 2007-09-18 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US6420024B1 (en) 2000-12-21 2002-07-16 3M Innovative Properties Company Charged microfibers, microfibrillated articles and use thereof
JP4747255B2 (ja) * 2000-12-27 2011-08-17 Jnc株式会社 帯電性を有するトウおよびそれを用いた積層体
US6802315B2 (en) * 2001-03-21 2004-10-12 Hollingsorth & Vose Company Vapor deposition treated electret filter media
EP1247558A1 (en) 2001-04-07 2002-10-09 3M Innovative Properties Company A combination filter for filtering fluids
WO2002089956A1 (en) * 2001-05-02 2002-11-14 Hollingsworth & Vose Company Filter media with enhanced stiffness and increased dust holding capacity
US6680114B2 (en) 2001-05-15 2004-01-20 3M Innovative Properties Company Fibrous films and articles from microlayer substrates
RU2300543C2 (ru) * 2001-05-31 2007-06-10 Дональдсон Компани, Инк. Составы тонкого волокна, способы их получения, способ изготовления тонковолокнистого материала
US6905827B2 (en) * 2001-06-08 2005-06-14 Expression Diagnostics, Inc. Methods and compositions for diagnosing or monitoring auto immune and chronic inflammatory diseases
US6589317B2 (en) 2001-08-10 2003-07-08 3M Innovative Properties Company Structured surface filtration media array
US6514324B1 (en) 2001-08-10 2003-02-04 Rick L. Chapman High efficiency active electrostatic air filter and method of manufacture
US20030203696A1 (en) * 2002-04-30 2003-10-30 Healey David Thomas High efficiency ashrae filter media
KR20110055576A (ko) * 2002-09-16 2011-05-25 트리오신 홀딩 아이엔씨 활성화제가 혼입된 정전기적으로 하전된 필터 매질
US7811949B2 (en) * 2003-11-25 2010-10-12 Kimberly-Clark Worldwide, Inc. Method of treating nonwoven fabrics with non-ionic fluoropolymers
US7931944B2 (en) * 2003-11-25 2011-04-26 Kimberly-Clark Worldwide, Inc. Method of treating substrates with ionic fluoropolymers
US20060110997A1 (en) * 2004-11-24 2006-05-25 Snowden Hue S Treated nonwoven fabrics and method of treating nonwoven fabrics
US20070068391A1 (en) * 2004-12-01 2007-03-29 Stanley Wiener Biological home defense system
CN101137423B (zh) * 2005-03-07 2010-08-11 3M创新有限公司 车辆客厢空气过滤器装置
US20060207234A1 (en) * 2005-03-18 2006-09-21 Ward Bennett C Coalescing filter elements comprising self-sustaining, bonded fiber structures
EP1874430B1 (en) * 2005-04-22 2008-11-12 3M Innovative Properties Company Vehicle passenger compartment air filter devices
US7244291B2 (en) * 2005-05-02 2007-07-17 3M Innovative Properties Company Electret article having high fluorosaturation ratio
US7244292B2 (en) * 2005-05-02 2007-07-17 3M Innovative Properties Company Electret article having heteroatoms and low fluorosaturation ratio
US7553440B2 (en) * 2005-05-12 2009-06-30 Leonard William K Method and apparatus for electric treatment of substrates
US7393269B2 (en) 2005-09-16 2008-07-01 3M Innovative Properties Company Abrasive filter assembly and methods of making same
US7828869B1 (en) 2005-09-20 2010-11-09 Cummins Filtration Ip, Inc. Space-effective filter element
US8114183B2 (en) 2005-09-20 2012-02-14 Cummins Filtration Ip Inc. Space optimized coalescer
US7959714B2 (en) 2007-11-15 2011-06-14 Cummins Filtration Ip, Inc. Authorized filter servicing and replacement
US20070062886A1 (en) 2005-09-20 2007-03-22 Rego Eric J Reduced pressure drop coalescer
US7674425B2 (en) 2005-11-14 2010-03-09 Fleetguard, Inc. Variable coalescer
US8231752B2 (en) 2005-11-14 2012-07-31 Cummins Filtration Ip Inc. Method and apparatus for making filter element, including multi-characteristic filter element
US7503326B2 (en) * 2005-12-22 2009-03-17 3M Innovative Properties Company Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
US7390351B2 (en) * 2006-02-09 2008-06-24 3M Innovative Properties Company Electrets and compounds useful in electrets
ITPS20060012A1 (it) * 2006-05-18 2007-11-19 Cl Com Srl Nuova maschera di protezione contro gli agenti biologici a due porzioni.
US7338355B2 (en) * 2006-06-13 2008-03-04 3M Innovative Properties Company Abrasive article and methods of making and using the same
US20080233850A1 (en) * 2007-03-20 2008-09-25 3M Innovative Properties Company Abrasive article and method of making and using the same
US7628829B2 (en) * 2007-03-20 2009-12-08 3M Innovative Properties Company Abrasive article and method of making and using the same
US20090000624A1 (en) * 2007-06-28 2009-01-01 3M Innovative Properties Company Respirator having a harness and methods of making and fitting the same
BRPI0819048C8 (pt) * 2007-12-06 2018-08-07 3M Innovative Properties Co "meio filtrante de eletreto e método de preparo de uma manta de eletreto"
US20110137082A1 (en) * 2008-06-02 2011-06-09 Li Fuming B Charge-enhancing additives for electrets
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
WO2009148744A2 (en) * 2008-06-02 2009-12-10 3M Innovative Properties Company Electret webs with charge-enhancing additives
US20100212272A1 (en) * 2009-02-24 2010-08-26 Hollingsworth & Vose Company Filter media suitable for ashrae applications
US20100252047A1 (en) 2009-04-03 2010-10-07 Kirk Seth M Remote fluorination of fibrous filter webs
ITPD20090117A1 (it) * 2009-05-04 2010-11-05 Euroflex Srl Spruzzatore a mano per liquidi detergenti
BRPI1010701A2 (pt) * 2009-06-12 2016-03-15 Clarcor Air Filtration Products Inc sistema de resfriamento de ar incorporando filtragem isenta de presença de membrana e/ou estrutura integrada para filtragem
DE202009014001U1 (de) 2009-10-15 2010-03-18 Bolst, Klaus, Dr.-Ing. Filtersystem bestehend aus einem Elektretfilter und einer vorgeschalteten Ionisationseinheit zur Erhöhung der Leistung des Elektretfilters und Verlängerung der Standzeit dessen bezüglich seiner elektrischen und elektrostatischen Eigenschaften
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
BR112012020099B1 (pt) 2010-02-12 2021-10-13 Donaldson Company, Inc Filtro para filtrar combustíveis líquidos
KR101962406B1 (ko) 2010-10-25 2019-03-26 릭 엘. 채프먼 전략적 이형단면 섬유 및/또는 전하 제어제를 함유하는 섬유 블렌드를 사용하는 여과 물질
CN103781956B (zh) * 2011-06-30 2016-09-28 3M创新有限公司 非织造驻极体纤维网及其制备方法
JP2013034941A (ja) * 2011-08-08 2013-02-21 Toyobo Co Ltd 耐油性フィルター
AT512190B1 (de) * 2012-01-27 2013-06-15 Ift Gmbh Vorrichtung zur abscheidung von stoffen
US9259058B2 (en) 2013-02-01 2016-02-16 3M Innovative Properties Company Personal protective equipment strap retaining devices
US9247788B2 (en) 2013-02-01 2016-02-02 3M Innovative Properties Company Personal protective equipment strap retaining devices
WO2015152207A1 (ja) * 2014-04-04 2015-10-08 東洋紡株式会社 エレクトレット
WO2016021053A1 (ja) * 2014-08-08 2016-02-11 ユーエスウラサキ株式会社 集塵フィルタ及びそれを用いた集塵装置
US10730001B2 (en) 2014-09-08 2020-08-04 Clarcor Air Filtration Products, Inc. Filter with high dust capacity
WO2016088692A1 (ja) * 2014-12-03 2016-06-09 東洋紡株式会社 エレクトレットフィルターの製造方法
WO2016088691A1 (ja) * 2014-12-03 2016-06-09 東洋紡株式会社 エレクトレットフィルター
WO2017100045A1 (en) 2015-12-11 2017-06-15 3M Innovative Properties Company Fluorinated piperazine sulfonamides
CN109311834A (zh) 2016-05-31 2019-02-05 3M创新有限公司 含氟哌嗪酰胺
EP3475290B1 (en) 2016-06-27 2020-08-05 3M Innovative Properties Company Fluorochemical piperazine carboxamides
US10590072B2 (en) 2016-09-09 2020-03-17 3M Innovative Properties Company Partially fluorinated aromatic esters
KR102558116B1 (ko) 2016-09-16 2023-07-21 쓰리엠 이노베이티브 프로퍼티즈 캄파니 호기 밸브 및 이를 포함하는 호흡기
CN106621589A (zh) * 2016-12-09 2017-05-10 钦州市钦南区科学技术情报研究所 一种防霾喷剂及其制备方法
RU2648360C1 (ru) * 2017-05-03 2018-03-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Санкт-Петербургский государственный технологический институт (технический университет)" Электретный материал на основе полиэтилена и способ его изготовления
EP3638654B1 (en) * 2017-06-13 2021-01-27 3M Innovative Properties Company Melt additive compounds, methods of using the same, and articles and compositions including the same
US11493673B2 (en) 2017-06-29 2022-11-08 3M Innovative Properties Company Article and methods of making the same
WO2019003115A1 (en) 2017-06-29 2019-01-03 3M Innovative Properties Company NONWOVEN ARTICLE AND METHOD FOR MANUFACTURING THE SAME
CN111560140B (zh) * 2020-06-19 2020-10-20 金发科技股份有限公司 口罩用熔喷无纺布专用有机驻极母粒及其制备方法、制成的熔喷无纺布
CN111607895A (zh) * 2020-06-23 2020-09-01 常州工程职业技术学院 一种适用于过滤油性颗粒物的熔喷布及其制备方法
US11970595B2 (en) 2020-12-30 2024-04-30 3M Innovative Properties Company Partially fluorinated sulfonamide for use in PET films

Family Cites Families (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3487610A (en) * 1965-03-26 1970-01-06 Du Pont Electrostatic filter unit with high stable charge and its manufacture
CA923294A (en) * 1968-12-09 1973-03-27 Tamura Masahiko High molecular weight electrets and process for producing them
US3796778A (en) * 1969-05-01 1974-03-12 American Cyanamid Co Method for preparing fibrous polyolefin materials
US3971373A (en) * 1974-01-21 1976-07-27 Minnesota Mining And Manufacturing Company Particle-loaded microfiber sheet product and respirators made therefrom
NL160303C (nl) * 1974-03-25 1979-10-15 Verto Nv Werkwijze voor het vervaardigen van een vezelfilter.
US4100324A (en) * 1974-03-26 1978-07-11 Kimberly-Clark Corporation Nonwoven fabric and method of producing same
NL181632C (nl) * 1976-12-23 1987-10-01 Minnesota Mining & Mfg Electreetfilter en werkwijze voor het vervaardigen daarvan.
NL7907539A (nl) * 1979-10-11 1981-04-14 Tno Werkwijze voor het vervaardigen van elektreten.
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
US4429001A (en) * 1982-03-04 1984-01-31 Minnesota Mining And Manufacturing Company Sheet product containing sorbent particulate material
JPS59126452A (ja) * 1983-01-06 1984-07-21 Japan Synthetic Rubber Co Ltd 高分子圧電材料
US4588537A (en) * 1983-02-04 1986-05-13 Minnesota Mining And Manufacturing Company Method for manufacturing an electret filter medium
US4456648A (en) * 1983-09-09 1984-06-26 Minnesota Mining And Manufacturing Company Particulate-modified electret fibers
JPS60168511A (ja) * 1984-02-10 1985-09-02 Japan Vilene Co Ltd エレクトレツトフイルタの製造方法
JPS60225416A (ja) * 1984-04-24 1985-11-09 三井化学株式会社 高性能エレクトレツトおよびエアフイルタ−
DE3578820D1 (de) * 1984-05-07 1990-08-30 Kureha Chemical Ind Co Ltd Spaltgarn aus vinylidenfluorid, verfahren zur herstellung desselben und damit hergestellte filter.
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
US4676807A (en) * 1985-07-05 1987-06-30 Pall Corporation Process for removal of liquid aerosols from gaseous streams
US5099026A (en) * 1986-09-12 1992-03-24 Crater Davis H Fluorochemical oxazolidinones
US5025052A (en) * 1986-09-12 1991-06-18 Minnesota Mining And Manufacturing Company Fluorochemical oxazolidinones
CA1323370C (en) * 1986-09-12 1993-10-19 Davis H. Crater Fluorochemical oxazolidinones
US4945125A (en) * 1987-01-05 1990-07-31 Tetratec Corporation Process of producing a fibrillated semi-interpenetrating polymer network of polytetrafluoroethylene and silicone elastomer and shaped products thereof
US4874399A (en) * 1988-01-25 1989-10-17 Minnesota Mining And Manufacturing Company Electret filter made of fibers containing polypropylene and poly(4-methyl-1-pentene)
GB2214837B (en) * 1988-02-17 1991-09-04 Process Scient Innovations Oil coalescing filter
JP2672329B2 (ja) * 1988-05-13 1997-11-05 東レ株式会社 エレクトレット材料
FR2633119B1 (fr) * 1988-06-21 1990-11-09 Labo Electronique Physique Circuit actif hyperfrequences du type passe-tout
US5110667A (en) * 1990-03-26 1992-05-05 Minnesota Mining And Manufacturing Company Polymer composition imparting low surface energy
JPH05214A (ja) * 1990-11-30 1993-01-08 Mitsui Petrochem Ind Ltd エレクトレツトフイルター
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media

Also Published As

Publication number Publication date
DE69419272T2 (de) 2000-03-23
CA2116983C (en) 2004-12-14
EP0616831A1 (en) 1994-09-28
US5411576A (en) 1995-05-02
AU5756894A (en) 1994-09-29
CA2116983A1 (en) 1994-09-27
JPH06319923A (ja) 1994-11-22
JP3464520B2 (ja) 2003-11-10
AU669420B2 (en) 1996-06-06
EP0616831B1 (en) 1999-06-30
KR100336186B1 (ko) 2002-08-17
DE69419272D1 (de) 1999-08-05
ES2135498T3 (es) 1999-11-01
US5472481A (en) 1995-12-05
KR940021105A (ko) 1994-10-17

Similar Documents

Publication Publication Date Title
BR9401208A (pt) Meio de filtro de eletreto, resistente a névoa oleosa, e, processo para filtrar material em partículas de ar que contém partículas de aerossol oleosas
BR9610260A (pt) Processo e dispositivo para desinfetar ar que contém microorganismos meio filtrante e filtro
BR9507347A (pt) Conjunto de filtro de ar para filtrar ar contendo matéria particulada
BR9507925A (pt) Conjunto de filtraç o e processo para vedar a borda de perimetro pregueada de um meio de filtraç o
BR8900286A (pt) Filtro fibroso de eletreto,respirador e processo para remover material em particulas de um fluido gasoso
BR9407259A (pt) Processo para carregar um lençol não tecido de microfibras termoplásticas meio de filtro de eletreto máscara de filtragem elástica e conjunto de máscara respiradora
BR9612314A (pt) Composição particulada e processo para a produção de partículas
DE69430271T2 (de) Filterpatrone zur Nebelabscheidung
BR9207032A (pt) Processo para fazer partículas magnéticas revestidas partícula compósita revestida adequada para meios de registro magnético e meio de registro magnético
BR8100665A (pt) Processo para a preparacao de meios de filtro, meio de folha de filtro e processo para a remocao de nevoa ou de formadores de nevoa
BR9500387A (pt) Material de filtração de ar, sua aplicação e processo para a preparação de um material de filtração de ar
BR9610200A (pt) Processo para a preparação de material fibrosos de eletreto composição telas fibrosas meio filtrante de eletreto composto respirador com um meio filtrante e sistema de ventilação para veículo
DE69307939D1 (de) Feinblätterige Boehmitteilchen und Verfahren zu ihrer Herstellung
BR9302494A (pt) Processo e dispositivo para a fabricacao de filtros dobrados em zigue-zague
FI943144A (fi) Parannettu suodatin ja menetelmä varattujen hiukkasten erottamiseksi nestevirtauksesta
ATA172394A (de) Scheibenfilter zum abtrennen von flüssigkeiten aus einer suspension, insbesondere faserstoffsuspension
BR9703383A (pt) Método para separação de substâncias de um meio gasoso para absorção a seco
BR9402777A (pt) Processo para fabricação de um cartucho filtro e filtro
DK1142620T3 (da) Fremgangsmåde til fjernelse af partikler indeholdt i en fluidström
BR9611794A (pt) Cartucho de filtro e processo para reciclagem dos cartuchos de filtro
ATA900995A (de) Verfahren zur grössenklassierung von aerosolpartikeln
DE69501254D1 (de) Mittel zur herstellung eines aerosols
ATE186581T1 (de) Partikelformiges oder granuläres gefarbtes material aus altpapier und verfahren zu dessen herstellung
BR9406216A (pt) Processo para retirada de tinta de papel que leva particulas de tinta
DE9320302U1 (de) Zuschnitt zur Herstellung eines Kastens und Kasten aus blattförmigem Material

Legal Events

Date Code Title Description
EE Request for examination
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 15A E 16A ANUIDADE(S).

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B15K Others concerning applications: alteration of classification

Ipc: D01F 6/06 (2006.01), B01D 39/08 (2006.0

B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2277 DE 26/08/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 15A E 16A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2607 DE 22-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.