FR2416535B1 - - Google Patents

Info

Publication number
FR2416535B1
FR2416535B1 FR7902842A FR7902842A FR2416535B1 FR 2416535 B1 FR2416535 B1 FR 2416535B1 FR 7902842 A FR7902842 A FR 7902842A FR 7902842 A FR7902842 A FR 7902842A FR 2416535 B1 FR2416535 B1 FR 2416535B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7902842A
Other languages
French (fr)
Other versions
FR2416535A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of FR2416535A1 publication Critical patent/FR2416535A1/fr
Application granted granted Critical
Publication of FR2416535B1 publication Critical patent/FR2416535B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
    • A41D13/1138—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration
    • A41D13/1146—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a cup configuration obtained by moulding
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • A62B23/02—Filters for breathing-protection purposes for respirators
    • A62B23/025—Filters for breathing-protection purposes for respirators the filter having substantially the shape of a mask
    • 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
    • B03—SEPARATION 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28—Plant or installations without electricity supply, e.g. using electrets
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-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
    • D04H1/54—Non-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
    • D04H1/56—Non-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
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/16—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic filaments produced in association with filament formation, e.g. immediately following extrusion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0435—Electret
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/35—Respirators and register filters
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/39—Electrets separator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Textile Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Filtering Materials (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Semiconductor Lasers (AREA)
  • Led Devices (AREA)
  • Electrostatic Separation (AREA)
FR7902842A 1978-02-06 1979-02-05 Nouveaux electrets Granted FR2416535A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/875,614 US4215682A (en) 1978-02-06 1978-02-06 Melt-blown fibrous electrets

Publications (2)

Publication Number Publication Date
FR2416535A1 FR2416535A1 (fr) 1979-08-31
FR2416535B1 true FR2416535B1 (US07968547-20110628-C00004.png) 1984-02-03

Family

ID=25366080

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7902842A Granted FR2416535A1 (fr) 1978-02-06 1979-02-05 Nouveaux electrets

Country Status (16)

Country Link
US (1) US4215682A (US07968547-20110628-C00004.png)
JP (2) JPS59124B2 (US07968547-20110628-C00004.png)
AT (1) AT380126B (US07968547-20110628-C00004.png)
AU (1) AU507773B2 (US07968547-20110628-C00004.png)
BR (1) BR7900546A (US07968547-20110628-C00004.png)
CA (1) CA1122546A (US07968547-20110628-C00004.png)
CH (1) CH642277A5 (US07968547-20110628-C00004.png)
DE (1) DE2904170A1 (US07968547-20110628-C00004.png)
DK (1) DK157286C (US07968547-20110628-C00004.png)
ES (1) ES477436A1 (US07968547-20110628-C00004.png)
FR (1) FR2416535A1 (US07968547-20110628-C00004.png)
GB (1) GB2015253B (US07968547-20110628-C00004.png)
IT (1) IT1116822B (US07968547-20110628-C00004.png)
NL (1) NL7900855A (US07968547-20110628-C00004.png)
NO (1) NO151092C (US07968547-20110628-C00004.png)
SE (1) SE444893B (US07968547-20110628-C00004.png)

Families Citing this family (377)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5624013A (en) * 1979-05-04 1981-03-07 Nitta Kk Structure of air filter element
US4308223A (en) * 1980-03-24 1981-12-29 Albany International Corp. Method for producing electret fibers for enhancement of submicron aerosol filtration
FR2480807A1 (fr) * 1980-04-18 1981-10-23 Seplast Sa Procede de traitement superficiel d'une couche filtrante fibreuse, non tissee et tres aeree, formant electret et son application aux filtres et aux masques respiratoires notamment
US4467799A (en) * 1980-05-05 1984-08-28 Steinberg Jacob H Transparent odor-free face mask
ZA813133B (en) * 1980-05-14 1982-12-29 Surgikos Inc Disposable surgical face mask and method of producing it
ZA813132B (en) * 1980-05-14 1982-12-29 Surgikos Inc Disposable surgical apparel and method of producing it
US4376642A (en) * 1980-08-18 1983-03-15 Biotech Electronics Ltd. Portable air cleaner unit
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
US4462399A (en) * 1981-10-02 1984-07-31 Minnesota Mining And Manufacturing Company Powered air respirator and cartridge
US5720832A (en) * 1981-11-24 1998-02-24 Kimberly-Clark Ltd. Method of making a meltblown nonwoven web containing absorbent particles
DE3275421D1 (en) * 1982-03-29 1987-03-12 Rhodia Ag Process and apparatus for the manufacture of electret filaments, fibres or the like
AU565762B2 (en) * 1983-02-04 1987-09-24 Minnesota Mining And Manufacturing Company Method and apparatus for manufacturing an electret filter medium
US4643182A (en) * 1983-04-20 1987-02-17 Max Klein Disposable protective mask
US4456648A (en) * 1983-09-09 1984-06-26 Minnesota Mining And Manufacturing Company Particulate-modified electret fibers
US4729371A (en) * 1983-10-11 1988-03-08 Minnesota Mining And Manufacturing Company Respirator comprised of blown bicomponent fibers
US4547420A (en) * 1983-10-11 1985-10-15 Minnesota Mining And Manufacturing Company Bicomponent fibers and webs made therefrom
US4795668A (en) * 1983-10-11 1989-01-03 Minnesota Mining And Manufacturing Company Bicomponent fibers and webs made therefrom
AU569108B2 (en) * 1983-10-11 1988-01-21 Minnesota Mining And Manufacturing Company Web of bicomponent 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
DE3509857C2 (de) * 1984-03-19 1994-04-28 Toyo Boseki Elektretisiertes Staubfilter und dessen Herstellung
JPS60196921A (ja) * 1984-03-19 1985-10-05 東洋紡績株式会社 エレクトレツト化材料の製造法
US4536440A (en) * 1984-03-27 1985-08-20 Minnesota Mining And Manufacturing Company Molded fibrous filtration products
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−
JPS6128009A (ja) * 1984-07-18 1986-02-07 旭化成株式会社 防塵マスク
DE3586482T2 (de) * 1984-10-24 1993-02-18 Toray Industries Elektretfiberfolie und verfahren zu deren herstellung.
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
US4824451A (en) * 1985-12-31 1989-04-25 Kimberly-Clark Corporation Melt-blown filter medium
US4807619A (en) * 1986-04-07 1989-02-28 Minnesota Mining And Manufacturing Company Resilient shape-retaining fibrous filtration face mask
US4714647A (en) * 1986-05-02 1987-12-22 Kimberly-Clark Corporation Melt-blown material with depth fiber size gradient
JPS62263361A (ja) * 1986-05-09 1987-11-16 東レ株式会社 不織布の製造方法
JPH0689505B2 (ja) * 1986-05-29 1994-11-09 東レ株式会社 抗菌性エレクトレツト繊維シ−ト
US5021831A (en) * 1986-12-16 1991-06-04 Fujitsu Limited Filter for removing smoke and toner dust used in electrophotographic/electrostatic recording apparatus
US4938786A (en) * 1986-12-16 1990-07-03 Fujitsu Limited Filter for removing smoke and toner dust in electrophotographic/electrostatic recording apparatus
US4827924A (en) * 1987-03-02 1989-05-09 Minnesota Mining And Manufacturing Company High efficiency respirator
US4883547A (en) * 1987-03-02 1989-11-28 Minnesota Mining And Manufacturing Company Method of forming a high efficiency respirator
DE3719420A1 (de) * 1987-06-11 1988-12-29 Sandler Helmut Helsa Werke Atemschutzmaske
DE3731575A1 (de) * 1987-09-19 1989-03-30 Freudenberg Carl Fa Filterpack
US4920960A (en) * 1987-10-02 1990-05-01 Tecnol, Inc. Body fluids barrier mask
US5150703A (en) * 1987-10-02 1992-09-29 Tecnol Medical Products, Inc. Liquid shield visor for a surgical mask with a bottom notch to reduce glare
US4969457A (en) * 1987-10-02 1990-11-13 Tecnol, Inc. Body fluids barrier mask
US5993943A (en) * 1987-12-21 1999-11-30 3M Innovative Properties Company Oriented melt-blown fibers, processes for making such fibers and webs made from such fibers
US4988560A (en) * 1987-12-21 1991-01-29 Minnesota Mining And Manufacturing Company Oriented melt-blown fibers, processes for making such fibers, and webs made from such fibers
US5141699A (en) * 1987-12-21 1992-08-25 Minnesota Mining And Manufacturing Company Process for making oriented melt-blown microfibers
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)
DE3908498C2 (de) * 1988-03-15 1997-08-21 Maico Elektroapparate Lüfter
US5035240A (en) * 1988-05-13 1991-07-30 Minnesota Mining And Manufacturing Company Elastomeric filtration materials
US4886058A (en) * 1988-05-17 1989-12-12 Minnesota Mining And Manufacturing Company Filter element
US4904174A (en) * 1988-09-15 1990-02-27 Peter Moosmayer Apparatus for electrically charging meltblown webs (B-001)
US5582865A (en) * 1988-12-12 1996-12-10 Extraction Systems, Inc. Non-woven filter composite
US5626820A (en) * 1988-12-12 1997-05-06 Kinkead; Devon A. Clean room air filtering
US4917942A (en) * 1988-12-22 1990-04-17 Minnesota Mining And Manufacturing Company Nonwoven filter material
US5549964A (en) * 1988-12-27 1996-08-27 Asahi Kasei Kogyo Kabushiki Kaisha Stretchable nonwoven fabric and method of manufacturing the same
GR900100242A (el) * 1989-04-07 1991-09-27 Johnson & Johnson Medical Ηλεκτροστατικώς φορτιζόμενη μάσκα καλύψεως προσώπου και μέ?οδος κατασκευής της.
GR1001027B (el) * 1989-04-07 1993-03-31 Johnson & Johnson Medical Βελτιωμενο μεσο φιλτραρισματος και μασκα καλυψεως προσωπου η οποια περιλαμβανει αυτο.
DE68919363T2 (de) * 1989-05-26 1995-03-30 Toray Industries, Inc., Tokio/Tokyo Staubdichte kopfhaube.
CA2027687C (en) * 1989-11-14 2002-12-31 Douglas C. Sundet Filtration media and method of manufacture
US5540756A (en) * 1990-03-19 1996-07-30 Hoppitt; Bernard Electrostatic filter and method of filtering dust
US5140980A (en) * 1990-06-13 1992-08-25 Ilc Dover, Inc. Hood mask and air filter system and method of manufacture thereof
US5122048A (en) * 1990-09-24 1992-06-16 Exxon Chemical Patents Inc. Charging apparatus for meltblown webs
US5306534A (en) * 1991-03-22 1994-04-26 Home Care Industries, Inc. Vacuum cleaner bag with electrostatically charged meltblown layer
US5227172A (en) * 1991-05-14 1993-07-13 Exxon Chemical Patents Inc. Charged collector apparatus for the production of meltblown electrets
US5240479A (en) * 1991-05-17 1993-08-31 Donaldson Company, Inc. Pleated filter media having a continuous bead of adhesive between layers of filtering material
TW206266B (US07968547-20110628-C00004.png) * 1991-06-12 1993-05-21 Toray Industries
GB9113861D0 (en) * 1991-06-26 1991-08-14 Lock Peter M Absorptive fibrous sheets and processes for their manufacture
EP0520798A1 (en) * 1991-06-26 1992-12-30 Peter Maurice Lock Absorptive materials, and methods for their production
US5314737A (en) * 1991-09-30 1994-05-24 Kimberly-Clark Corporation Area thinned thin sheet materials
US5443886A (en) * 1991-09-30 1995-08-22 Kimberly-Clark Corporation Hydrosonically embedded soft thin film materials
CA2070588A1 (en) * 1991-12-31 1993-07-01 Kimberly-Clark Worldwide, Inc. Conductive fabric and method of producing same
JP3286998B2 (ja) * 1992-01-08 2002-05-27 東レ株式会社 抗菌性エレクトレット材料
US5190502A (en) * 1992-02-07 1993-03-02 Dayco Products, Inc. Belt tensioning system, belt tensioner therefor and methods of making the same
US5230800A (en) * 1992-02-20 1993-07-27 Minnesota Mining And Manufacturing Company Scrim inserted electrostatic fibrous filter web
US5374458A (en) * 1992-03-13 1994-12-20 Minnesota Mining And Manufacturing Company Molded, multiple-layer face mask
US5486411A (en) * 1992-03-26 1996-01-23 The University Of Tennessee Research Corporation Electrically charged, consolidated non-woven webs
USRE35206E (en) * 1992-03-26 1996-04-16 The University Of Tennessee Research Corporation Post-treatment of nonwoven webs
US5443606A (en) * 1992-03-26 1995-08-22 The University Of Tennessee Reserch Corporation Post-treatment of laminated nonwoven cellulosic fiber webs
US5441550A (en) * 1992-03-26 1995-08-15 The University Of Tennessee Research Corporation Post-treatment of laminated nonwoven cellulosic fiber webs
US5244482A (en) * 1992-03-26 1993-09-14 The University Of Tennessee Research Corporation Post-treatment of nonwoven webs
US5254297A (en) * 1992-07-15 1993-10-19 Exxon Chemical Patents Inc. Charging method for meltblown webs
US5753343A (en) * 1992-08-04 1998-05-19 Minnesota Mining And Manufacturing Company Corrugated nonwoven webs of polymeric microfiber
US5336452A (en) * 1992-09-23 1994-08-09 Kimberly-Clark Corporation Process for hydrosonically area embossing thin thermoplastic film materials
US5370830A (en) * 1992-09-23 1994-12-06 Kimberly-Clark Corporation Hydrosonic process for forming electret filter media
US5401446A (en) * 1992-10-09 1995-03-28 The University Of Tennessee Research Corporation Method and apparatus for the electrostatic charging of a web or film
US5686050A (en) * 1992-10-09 1997-11-11 The University Of Tennessee Research Corporation Method and apparatus for the electrostatic charging of a web or film
US5592357A (en) * 1992-10-09 1997-01-07 The University Of Tennessee Research Corp. Electrostatic charging apparatus and method
US5273565A (en) * 1992-10-14 1993-12-28 Exxon Chemical Patents Inc. Meltblown fabric
DE4241517C2 (de) * 1992-12-10 1995-09-21 Freudenberg Carl Fa Verfahren und Vorrichtung zur Herstellung eines Spinnvliesstoffes
DE4241514C2 (de) * 1992-12-10 1995-09-07 Freudenberg Carl Fa Verfahren zur Herstellung eines mit Dipolen beladenen Flächengebildes und Vorrichtung zur Durchführung des Verfahrens
US5765556A (en) * 1992-12-16 1998-06-16 Tecnol Medical Products, Inc. Disposable aerosol mask with face shield
DE69404736T2 (de) * 1993-03-09 1998-01-08 Hoechst Celanese Corp Polymer-Elektrete mit verbesserter Ladungsstabilität
US5468488A (en) * 1993-06-24 1995-11-21 Wahi; Ashok L. Electrostatically charged nasal application product and method
US5499917A (en) * 1993-06-29 1996-03-19 Minnesota Mining And Manufacturing Company Dental isolation dam
US5643507A (en) * 1993-08-17 1997-07-01 Minnesota Mining And Manufacturing Company Filter media having an undulated surface
PL173854B1 (pl) * 1993-08-17 1998-05-29 Minnesota Mining & Mfg Sposób wytwarzania elektretowego środka filtracyjnego
US5607647A (en) * 1993-12-02 1997-03-04 Extraction Systems, Inc. Air filtering within clean environments
US6055982A (en) * 1993-12-15 2000-05-02 Kimberly-Clark Worldwide, Inc. Disposable face mask with enhanced fluid barrier
US5553608A (en) * 1994-07-20 1996-09-10 Tecnol Medical Products, Inc. Face mask with enhanced seal and method
US5724964A (en) * 1993-12-15 1998-03-10 Tecnol Medical Products, Inc. Disposable face mask with enhanced fluid barrier
CA2124237C (en) * 1994-02-18 2004-11-02 Bernard Cohen Improved nonwoven barrier and method of making the same
AT76U1 (de) * 1994-04-18 1995-01-25 Pregenzer Gerald Pregenzer Ger Medizinische gesichtsmaske
CA2136576C (en) * 1994-06-27 2005-03-08 Bernard Cohen Improved nonwoven barrier and method of making the same
US5699792A (en) * 1994-07-20 1997-12-23 Tecnol Medical Products, Inc. Face mask with enhanced facial seal
US5665448A (en) * 1994-08-24 1997-09-09 Graham; Barbara Electrostatic display device
US5597645A (en) * 1994-08-30 1997-01-28 Kimberly-Clark Corporation Nonwoven filter media for gas
US5736473A (en) 1994-09-14 1998-04-07 Kimberly-Clark Corp. Fibrous composite structure including particulates
CN1067910C (zh) * 1994-10-31 2001-07-04 金伯利-克拉克环球有限公司 高密度非织造织物过滤介质
AU4961696A (en) * 1994-12-08 1996-06-26 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
DK0814871T3 (da) * 1995-03-09 2002-04-02 Minnesota Mining & Mfg Fladt foldelige personlige åndedrætsbeskyttelsesindretninger og fremgangsmåder til fremstilling af disse
US6568392B1 (en) 1995-09-11 2003-05-27 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
AU2095895A (en) * 1995-03-09 1996-10-02 Minnesota Mining And Manufacturing Company Fold flat respirators and processes for preparing same
US5955174A (en) * 1995-03-28 1999-09-21 The University Of Tennessee Research Corporation Composite of pleated and nonwoven webs
US5647881A (en) * 1995-04-20 1997-07-15 Minnesota Mining And Manufacturing Company Shock resistant high efficiency vacuum cleaner filter bag
EP0828556A1 (en) * 1995-05-24 1998-03-18 Kimberly-Clark Worldwide, Inc. Filter with adsorbent clay minerals attached to individual exposed surfaces of a fibrous matrix
US5906743A (en) * 1995-05-24 1999-05-25 Kimberly Clark Worldwide, Inc. Filter with zeolitic adsorbent attached to individual exposed surfaces of an electret-treated fibrous matrix
MX9709101A (es) * 1995-05-25 1998-02-28 Kimberly Clark Co Matriz de filtro.
US5620785A (en) * 1995-06-07 1997-04-15 Fiberweb North America, Inc. Meltblown barrier webs and processes of making same
US5804512A (en) * 1995-06-07 1998-09-08 Bba Nonwovens Simpsonville, Inc. Nonwoven laminate fabrics and processes of making same
US5496627A (en) * 1995-06-16 1996-03-05 Eastman Chemical Company Composite fibrous filters
WO1997013266A2 (en) * 1995-06-19 1997-04-10 The University Of Tennessee Research Corporation Discharge methods and electrodes for generating plasmas at one atmosphere of pressure, and materials treated therewith
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
US5627376A (en) * 1995-09-08 1997-05-06 Samsung Electronics Co., Ltd. Wire corona charging apparatus
US5709735A (en) * 1995-10-20 1998-01-20 Kimberly-Clark Worldwide, Inc. High stiffness nonwoven filter medium
US5834384A (en) * 1995-11-28 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven webs with one or more surface treatments
US5721180A (en) * 1995-12-22 1998-02-24 Pike; Richard Daniel Laminate filter media
US5817584A (en) * 1995-12-22 1998-10-06 Kimberly-Clark Worldwide, Inc. High efficiency breathing mask fabrics
US5792242A (en) * 1996-02-26 1998-08-11 Minnesota Mining And Manufacturing Co. Electrostatic fibrous filter web
US5724677A (en) * 1996-03-08 1998-03-10 Minnesota Mining And Manufacturing Company Multi-part headband and respirator mask assembly and process for making same
US6070579A (en) * 1996-03-08 2000-06-06 3M Innovative Properties Company Elastomeric composite headband
US5707735A (en) * 1996-03-18 1998-01-13 Midkiff; David Grant Multilobal conjugate fibers and fabrics
US5667562A (en) * 1996-04-19 1997-09-16 Kimberly-Clark Worldwide, Inc. Spunbond vacuum cleaner webs
US6162535A (en) 1996-05-24 2000-12-19 Kimberly-Clark Worldwide, Inc. Ferroelectric fibers and applications therefor
JPH1033910A (ja) * 1996-07-10 1998-02-10 Minnesota Mining & Mfg Co <3M> 反復使用可能なフィルタ枠体及びそれを使用した流体ろ過用フィルタ
US6033455A (en) * 1996-07-19 2000-03-07 3M Innovative Properties Company Repeatedly usable filter frame and filter for fluid using the same
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
US5964926A (en) * 1996-12-06 1999-10-12 Kimberly-Clark Worldwide, Inc. Gas born particulate filter and method of making
PL335730A1 (en) * 1997-03-11 2000-05-08 Univ Tennessee Res Corp Blow-moulded composite materials and their application
US5874373A (en) * 1997-03-14 1999-02-23 American Felt & Filter Company Enhanced electret needled filtration media and composites
US6123076A (en) * 1997-05-09 2000-09-26 Porous Media Corporation Hydrophobic barrier for filters and filter media
US6041782A (en) * 1997-06-24 2000-03-28 3M Innovative Properties Company Respiratory mask having comfortable inner cover web
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
US6068799A (en) * 1997-10-01 2000-05-30 3M Innovative Properties Company Method of making 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
US6238466B1 (en) 1997-10-01 2001-05-29 3M Innovative Properties Company Electret articles and filters with increased oily mist resistance
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
US6102039A (en) 1997-12-01 2000-08-15 3M Innovative Properties Company Molded respirator containing sorbent particles
FR2775616B1 (fr) * 1998-03-05 2000-04-28 Jack Daniel Joubert Dispositif et procede de filtration de l'air
US6171369B1 (en) 1998-05-11 2001-01-09 Airflo Europe, N.V. Vacuum cleaner bag construction and method of operation
US6073767A (en) * 1998-05-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Package and method to reduce bacterial contamination of sterilized articles
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs
US6932850B1 (en) 1998-06-29 2005-08-23 Pall Corporation Pleated filter and a method for making the same
CA2336213C (en) 1998-06-30 2007-08-07 Kimberly-Clark Worldwide, Inc. Stable polymeric electret materials
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
US6110260A (en) * 1998-07-14 2000-08-29 3M Innovative Properties Company Filter having a change indicator
US6584976B2 (en) * 1998-07-24 2003-07-01 3M Innovative Properties Company Face mask that has a filtered exhalation valve
US6036752A (en) * 1998-07-28 2000-03-14 3M Innovative Properties Company Pleated filter
US6543450B1 (en) * 1998-09-29 2003-04-08 John T. Flynn Survival mask
DE19845526C5 (de) 1998-10-02 2016-10-20 Mann+Hummel Innenraumfilter Gmbh & Co. Kg Filtermaterial für fluide Medien sowie Verfahren zur Herstellung eines solchen Filtermaterials
US6139308A (en) 1998-10-28 2000-10-31 3M Innovative Properties Company Uniform meltblown fibrous web and methods and apparatus for manufacturing
US6723669B1 (en) * 1999-12-17 2004-04-20 Kimberly-Clark Worldwide, Inc. Fine multicomponent fiber webs and laminates thereof
US6280824B1 (en) 1999-01-29 2001-08-28 3M Innovative Properties Company Contoured layer channel flow filtration media
US6573205B1 (en) 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US6243909B1 (en) 1999-02-01 2001-06-12 Barbara Graham Dust mop with replaceable electrostatically
US6394090B1 (en) 1999-02-17 2002-05-28 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
US6279570B1 (en) 1999-03-02 2001-08-28 3M Innovative Properties Company Filter support, assembly and system
US6156086A (en) * 1999-03-22 2000-12-05 3M Innovative Properties Company Dual media vacuum filter bag
US6372004B1 (en) 1999-07-08 2002-04-16 Airflo Europe N.V. High efficiency depth filter and methods of forming the same
US6273938B1 (en) 1999-08-13 2001-08-14 3M Innovative Properties Company Channel flow filter
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
US6454986B1 (en) 1999-10-08 2002-09-24 3M Innovative Properties Company Method of making a fibrous electret web using a nonaqueous 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
US6729332B1 (en) 1999-10-22 2004-05-04 3M Innovative Properties Company Retention assembly with compression element and method of use
US6428610B1 (en) * 2000-01-18 2002-08-06 The University Of Tennessee Research Corporation Hepa filter
US6494921B1 (en) 2000-02-10 2002-12-17 M. Catherine Bennett Method of removing particulate debris, especially dust mite fecal material from fabric articles in a conventional clothes dryer
WO2001068228A1 (en) * 2000-03-13 2001-09-20 The University Of Akron Method and apparatus of mixing fibers
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
US6533119B1 (en) 2000-05-08 2003-03-18 3M Innovative Properties Company BMF face oil remover film
US6976489B2 (en) * 2000-06-30 2005-12-20 Northgate Technologies, Inc. Method and apparatus for humidification and warming of air
US6649547B1 (en) 2000-08-31 2003-11-18 Kimberly-Clark Worldwide, Inc. Integrated nonwoven laminate material
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
US7270693B2 (en) * 2000-09-05 2007-09-18 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
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
US6673136B2 (en) 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
US6740142B2 (en) 2000-09-05 2004-05-25 Donaldson Company, Inc. Industrial bag house elements
US6743273B2 (en) 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
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
US20020092423A1 (en) * 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
WO2002041717A2 (en) * 2000-11-27 2002-05-30 Kimberly-Clark Worldwide, Inc. Face mask filtration media with improved breathability
DE10063518C2 (de) * 2000-12-20 2003-11-20 Sandler Helmut Helsa Werke Verfahren zum elektrostatischen Spinnen von Polymeren zum Erhalt von Nano- und Mikrofasern
DK1236494T3 (da) * 2001-03-02 2004-02-16 Airflo Europ N V Kompositfilter og fremgangsmåde til fremstilling af samme
EP1247558A1 (en) * 2001-04-07 2002-10-09 3M Innovative Properties Company A combination filter for filtering fluids
DE10152785A1 (de) * 2001-04-24 2002-11-07 Ulrich Lersch Atemluftfilter
EP1385597A1 (en) * 2001-05-02 2004-02-04 HOLLINGSWORTH &amp; VOSE COMPANY Filter media with enhanced stiffness and increased dust holding capacity
RU2300543C2 (ru) * 2001-05-31 2007-06-10 Дональдсон Компани, Инк. Составы тонкого волокна, способы их получения, способ изготовления тонковолокнистого материала
US7105124B2 (en) * 2001-06-19 2006-09-12 Aaf-Mcquay, Inc. Method, apparatus and product for manufacturing nanofiber media
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
US6797360B2 (en) 2001-08-22 2004-09-28 Kimberly-Clark Worldwide, Inc. Nonwoven composite with high pre-and post-wetting permeability
US6694971B2 (en) * 2001-08-25 2004-02-24 Guy Daniel Schroeder Face mask
US6846449B2 (en) * 2001-09-07 2005-01-25 S. C. Johnson Home Storage, Inc. Method of producing an electrically charged film
KR100438004B1 (ko) * 2001-09-17 2004-07-02 한국과학기술연구원 부직포형 필터 소재 제조시스템 및 그 제조방법
US20030203696A1 (en) * 2002-04-30 2003-10-30 Healey David Thomas High efficiency ashrae filter media
AU2003245243A1 (en) * 2002-06-05 2003-12-22 Louis M. Gerson Co., Inc. Face mask and method of manufacturing the same
US7677248B2 (en) * 2002-06-05 2010-03-16 Louis M. Gerson Co., Inc. Stiffened filter mask
US6846450B2 (en) * 2002-06-20 2005-01-25 3M Innovative Properties Company Method for making a nonwoven web
US6824733B2 (en) * 2002-06-20 2004-11-30 3M Innovative Properties Company Meltblowing apparatus employing planetary gear metering pump
US6861025B2 (en) * 2002-06-20 2005-03-01 3M Innovative Properties Company Attenuating fluid manifold for meltblowing die
US6923182B2 (en) 2002-07-18 2005-08-02 3M Innovative Properties Company Crush resistant filtering face mask
US6827764B2 (en) * 2002-07-25 2004-12-07 3M Innovative Properties Company Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers
US6861036B2 (en) * 2002-08-30 2005-03-01 Washington University In St. Louis Charging and capture of particles in coronas irradiated by in-situ X-rays
JP4949629B2 (ja) 2002-09-16 2012-06-13 トリオシン・ホールディング・インコーポレイテッド 活性剤が加入された静電的に荷電したフィルター媒体
US6945249B2 (en) * 2002-09-24 2005-09-20 Kimberly-Clark Worldwide, Inc. Easy gripping face mask
US6948499B2 (en) * 2002-09-24 2005-09-27 Kimberly-Clark Worldwide, Inc. Easy gripping face mask
US6868984B2 (en) * 2002-09-24 2005-03-22 Kimberly-Clark Worldwide, Inc. Method of dispensing a face mask
US6928657B2 (en) 2002-10-25 2005-08-16 Kimberly-Clark Worldwide, Inc. Face mask having hook and loop type fastener
US7032751B2 (en) * 2002-12-19 2006-04-25 Kimberly-Clark Worldwide, Inc. Dispensing assembly for single piece face mask
US20040247819A1 (en) * 2003-06-09 2004-12-09 3M Innovative Properties Company Casing-free insulation blanket
US6971387B2 (en) * 2003-09-19 2005-12-06 Santa Barbara Medco Personal air purifier
US8091550B2 (en) 2003-12-22 2012-01-10 Kimberly-Clark Worldwide, Inc. Face mask having baffle layer for improved fluid resistance
US20050137540A1 (en) * 2003-12-23 2005-06-23 Kimberly-Clark Worldwide, Inc. Bacteria removing wipe
US20050138749A1 (en) * 2003-12-29 2005-06-30 Keck Laura E. Combination dry and absorbent floor mop/wipe
US7416581B2 (en) * 2004-09-03 2008-08-26 Point Source Solutions, Inc. Air-permeable filtration media, methods of manufacture and methods of use
US7846530B2 (en) * 2004-09-27 2010-12-07 Kimberly-Clark Worldwide, Inc. Creped electret nonwoven wiper
US20060074390A1 (en) * 2004-10-06 2006-04-06 Kimberly-Clark Worldwide, Inc. Absorbent article dispensing system
US7325699B2 (en) * 2004-12-17 2008-02-05 Kimberly-Clark Worldwide, Inc. Lint-reducing container
US8622059B2 (en) * 2004-12-21 2014-01-07 Kimberly-Clark Worldwide, Inc. Face mask with absorbent element
US20060130841A1 (en) * 2004-12-22 2006-06-22 Kimberly-Clark Worldwide, Inc Face mask with horizontal and vertical folds
US7725948B2 (en) * 2004-12-22 2010-06-01 Kimberly-Clark Woldwide, Inc. Face mask with offset folding for improved fluid resistance
US7290545B2 (en) * 2004-12-23 2007-11-06 Kimberly-Clark Worldwide, Inc. Face mask with anti-fog folding
US8808608B2 (en) * 2004-12-27 2014-08-19 E I Du Pont De Nemours And Company Electroblowing web formation process
US7244292B2 (en) * 2005-05-02 2007-07-17 3M Innovative Properties Company Electret article having heteroatoms and low fluorosaturation ratio
US7244291B2 (en) * 2005-05-02 2007-07-17 3M Innovative Properties Company Electret article having high fluorosaturation ratio
US7553440B2 (en) * 2005-05-12 2009-06-30 Leonard William K Method and apparatus for electric treatment of substrates
US7465159B2 (en) 2005-08-17 2008-12-16 E.I. Du Pont De Nemours And Company Fiber charging apparatus
US7582247B2 (en) * 2005-08-17 2009-09-01 E. I. Du Pont De Nemours And Company Electroblowing fiber spinning process
US20070048345A1 (en) * 2005-08-31 2007-03-01 Kimberly-Clark Worldwide, Inc. Antimicrobial composition
US20070048356A1 (en) * 2005-08-31 2007-03-01 Schorr Phillip A Antimicrobial treatment of nonwoven materials for infection control
US20070048358A1 (en) * 2005-08-31 2007-03-01 Schorr Phillip A Antimicrobial substrates
US7845351B2 (en) * 2005-08-31 2010-12-07 Kimberly-Clark Worldwide Inc. Germicidal face mask
US20070048344A1 (en) * 2005-08-31 2007-03-01 Ali Yahiaoui Antimicrobial composition
US7393269B2 (en) 2005-09-16 2008-07-01 3M Innovative Properties Company Abrasive filter assembly and methods of making same
WO2007047263A1 (en) * 2005-10-19 2007-04-26 3M Innovative Properties Company Multilayer articles having acoustical absorbance properties and methods of making and using the same
US7985209B2 (en) * 2005-12-15 2011-07-26 Kimberly-Clark Worldwide, Inc. Wound or surgical dressing
US20070142262A1 (en) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Bacteria capturing treatment for fibrous webs
US20070141934A1 (en) * 2005-12-15 2007-06-21 Kimberly-Clark Worldwide, Inc. Nonwoven webs containing bacteriostatic compositions and methods of making the same
US9216306B2 (en) * 2005-12-22 2015-12-22 3M Innovative Properties Company Filter element that has plenum containing bonded continuous filaments
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
US7338355B2 (en) * 2006-06-13 2008-03-04 3M Innovative Properties Company Abrasive article and methods of making and using the same
WO2008008067A1 (en) 2006-07-14 2008-01-17 Kimberly-Clark Worldwide, Inc. Biodegradable aliphatic polyester for use in nonwoven webs
DE102006048292A1 (de) * 2006-10-12 2008-04-17 Irema-Filter Gmbh Verfahren zur Herstellung eines Faservlieses aus Kunststoff-Micro- und/oder Nanofasern
US7642208B2 (en) 2006-12-14 2010-01-05 Kimberly-Clark Worldwide, Inc. Abrasion resistant material for use in various media
US7628829B2 (en) * 2007-03-20 2009-12-08 3M Innovative Properties Company Abrasive article and method 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
DE102007018937A1 (de) * 2007-04-21 2008-10-23 Helsa-Automotive Gmbh & Co. Kg Elektrostatisch geladenes oder aufladbares Filtermaterial und Verfahren zu dessen Herstellung
US9770611B2 (en) 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
US20080271739A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free respirator that has concave portions on opposing sides of mask top section
US20080271740A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free flat-fold respirator that includes a graspable tab
US20080315454A1 (en) * 2007-06-22 2008-12-25 3M Innovative Properties Company Method of making meltblown fiber web with staple fibers
US7989371B2 (en) * 2007-06-22 2011-08-02 3M Innovative Properties Company Meltblown fiber web with staple fibers
US7989372B2 (en) * 2007-06-22 2011-08-02 3M Innovative Properties Company Molded respirator comprising meltblown fiber web with staple fibers
US7789927B2 (en) 2007-07-06 2010-09-07 Kimberly-Clark Worldwide, Inc. Portable breathable dust partition system
US7836540B2 (en) * 2007-08-02 2010-11-23 3M Innovative Properties Company Broom with particle capture sheet
US8070862B2 (en) * 2007-09-04 2011-12-06 3M Innovative Properties Company Dust collection device for sanding tool
AU2008302589B2 (en) 2007-09-20 2011-01-27 3M Innovative Properties Company Filtering face-piece respirator that has expandable mask body
AU2008302603B2 (en) * 2007-09-20 2011-12-22 3M Innovative Properties Company Filtering face-piece respirator having buckles integral to the mask body support structure
CN101896657B (zh) * 2007-12-06 2012-11-28 3M创新有限公司 驻极体过滤器介质以及制备驻极体织物的方法
US8871232B2 (en) 2007-12-13 2014-10-28 Kimberly-Clark Worldwide, Inc. Self-indicating wipe for removing bacteria from a surface
CN101945692B (zh) * 2007-12-27 2013-07-10 3M创新有限公司 用于砂光工具的粉尘收集装置
CA2714699C (en) 2008-02-21 2016-03-22 Duane D. Fansler Adducts of amines and polycarboxylic acids, and filter media comprising such adducts
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
BRPI0909959B1 (pt) * 2008-06-02 2018-11-13 3M Innovative Properties Co manta de eletreto e meio de filtro à base de eletreto
US20110137082A1 (en) * 2008-06-02 2011-06-09 Li Fuming B Charge-enhancing additives for electrets
US20090308548A1 (en) * 2008-06-16 2009-12-17 Tramontina Paul F Temporary partition curtain
US20100007042A1 (en) * 2008-07-09 2010-01-14 Simmonds Glen E Method and apparatus for making submicron diameter fibers and webs there from
AU2009288566A1 (en) * 2008-08-26 2010-03-11 Trutek Corp. Electrostatically charged mask filter products and method for increased filtration efficiency
DE102008047552A1 (de) * 2008-09-16 2010-04-08 Carl Freudenberg Kg Elektretfilterelement und Verfahren zu dessen Herstellung
US11083916B2 (en) 2008-12-18 2021-08-10 3M Innovative Properties Company Flat fold respirator having flanges disposed on the mask body
US8382872B2 (en) * 2008-12-23 2013-02-26 3M Innovative Properties Company Dust collection device for sanding tool
US20100212272A1 (en) * 2009-02-24 2010-08-26 Hollingsworth & Vose Company Filter media suitable for ashrae applications
MX2011010443A (es) 2009-04-03 2011-10-24 3M Innovative Properties Co Auxiliares de procesamiento para redes olefinicas, incluyendo redes de electreto.
US20100252047A1 (en) 2009-04-03 2010-10-07 Kirk Seth M Remote fluorination of fibrous filter webs
MX2011010271A (es) 2009-04-03 2011-10-17 3M Innovative Prosperties Company Redes de electreto con aditivos aumentadores de carga.
ITPD20090117A1 (it) * 2009-05-04 2010-11-05 Euroflex Srl Spruzzatore a mano per liquidi detergenti
US8640704B2 (en) 2009-09-18 2014-02-04 3M Innovative Properties Company Flat-fold filtering face-piece respirator having structural weld pattern
KR20110031144A (ko) 2009-09-18 2011-03-24 쓰리엠 이노베이티브 프로퍼티즈 컴파니 파지 특징부 표시부를 갖는 안면부 여과식 호흡기
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
US8534294B2 (en) 2009-10-09 2013-09-17 Philip Morris Usa Inc. Method for manufacture of smoking article filter assembly including electrostatically charged fiber
US8528560B2 (en) 2009-10-23 2013-09-10 3M Innovative Properties Company Filtering face-piece respirator having parallel line weld pattern in mask body
RU2012117972A (ru) 2009-11-18 2013-12-27 3М Инновейтив Пропертиз Компани Армированный фильтрующий материал
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
BR112012016094A2 (pt) 2009-12-30 2016-08-16 3M Innovative Properties Co respirador com peça facial filtrante tendo uma malha auxética no corpo da máscara
US9056268B2 (en) 2010-02-12 2015-06-16 Donaldson Company, Inc. Liquid filtration media, filter elements and methods
JP6120573B2 (ja) 2010-03-03 2017-04-26 スリーエム イノベイティブ プロパティズ カンパニー 分配可能なフェイスマスク及びその作製方法
US20130108831A1 (en) * 2010-07-07 2013-05-02 3M Innovative Properties Company Patterned air-laid nonwoven electret fibrous webs and methods of making and using same
KR20130041928A (ko) 2010-07-07 2013-04-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 패턴화된 에어 레이드 부직포 섬유질 웨브 및 그 제조 및 사용 방법
US20120017911A1 (en) 2010-07-26 2012-01-26 3M Innovative Properties Company Filtering face-piece respirator having foam shaping layer
US10753023B2 (en) 2010-08-13 2020-08-25 Kimberly-Clark Worldwide, Inc. Toughened polylactic acid fibers
US8936740B2 (en) 2010-08-13 2015-01-20 Kimberly-Clark Worldwide, Inc. Modified polylactic acid fibers
US8585808B2 (en) 2010-11-08 2013-11-19 3M Innovative Properties Company Zinc oxide containing filter media and methods of forming the same
US20120125341A1 (en) 2010-11-19 2012-05-24 3M Innovative Properties Company Filtering face-piece respirator having an overmolded face seal
WO2012122500A1 (en) 2011-03-10 2012-09-13 Adc Tech International Ltd. Air purifier having an electret module
US9802187B2 (en) 2011-06-30 2017-10-31 3M Innovative Properties Company Non-woven electret fibrous webs and methods of making same
US10245537B2 (en) 2012-05-07 2019-04-02 3M Innovative Properties Company Molded respirator having outer cover web joined to mesh
CA2892625C (en) 2012-12-14 2019-10-22 3M Innovative Properties Company Non-woven electret fibrous webs and methods of making same
US10182603B2 (en) 2012-12-27 2019-01-22 3M Innovative Properties Company Filtering face-piece respirator having strap-activated folded flange
US11116998B2 (en) 2012-12-27 2021-09-14 3M Innovative Properties Company Filtering face-piece respirator having folded flange
CN105407998B (zh) 2012-12-28 2018-02-02 3M创新有限公司 包含电荷加强添加剂的驻极体料片
KR20150144333A (ko) 2013-04-19 2015-12-24 쓰리엠 이노베이티브 프로퍼티즈 캄파니 전하 증대 첨가제를 갖는 일렉트릿 웨브
BR112016010917B1 (pt) 2013-11-20 2022-01-25 Kimberly-Clark Worldwide, Inc Artigo absorvente
EP3071740B1 (en) 2013-11-20 2021-06-02 Kimberly-Clark Worldwide, Inc. Soft and durable nonwoven composite
US10400354B2 (en) 2013-11-26 2019-09-03 3M Innovative Properties Company Process of making dimensionally-stable melt blown nonwoven fibrous structures
EP3082546A4 (en) 2013-12-18 2018-01-17 3M Innovative Properties Company A cleaning article
US9365951B2 (en) 2014-01-30 2016-06-14 Kimberly-Clark Worldwide, Inc. Negative polarity on the nanofiber line
JP2017512263A (ja) 2014-02-27 2017-05-18 スリーエム イノベイティブ プロパティズ カンパニー 透かし細工構造を有する弾性ストラップを備えた呼吸マスク
US10040621B2 (en) 2014-03-20 2018-08-07 3M Innovative Properties Company Filtering face-piece respirator dispenser
CN106132368B (zh) 2014-04-10 2018-09-21 3M创新有限公司 纤维和包含纤维的制品
CN106661786B (zh) 2014-06-23 2019-05-21 3M创新有限公司 包含电荷加强添加剂的驻极体料片
CN104088084B (zh) * 2014-07-04 2016-08-24 江苏丽洋新材料股份有限公司 一种高效低阻空气过滤材料制备装置
JP2017525862A (ja) 2014-08-18 2017-09-07 スリーエム イノベイティブ プロパティズ カンパニー ポリマーネットを含むレスピレータ及びポリマーネットを含むレスピレータを形成する方法
WO2016033097A1 (en) 2014-08-26 2016-03-03 3M Innovative Properties Company Spunbonded web comprising polylactic acid fibers
SG11201703267TA (en) 2014-10-31 2017-05-30 3M Innovative Properties Co Respirator having corrugated filtering structure
KR102230520B1 (ko) 2014-11-18 2021-03-22 킴벌리-클라크 월드와이드, 인크. 부드럽고 내구성이 있는 부직포 웹
GB201421617D0 (en) 2014-12-04 2015-01-21 3M Innovative Properties Co Respirator tab
GB201421615D0 (en) 2014-12-04 2015-01-21 3M Innovative Properties Co Respirator nosepiece
GB201421616D0 (en) 2014-12-04 2015-01-21 3M Innovative Properties Co Respirator headband
GB201421620D0 (en) 2014-12-04 2015-01-21 3M Innovative Properties Co Flat-fold respirator
GB201421618D0 (en) 2014-12-04 2015-01-21 3M Innovative Properties Co Respirator valve
GB201508114D0 (en) 2015-05-12 2015-06-24 3M Innovative Properties Co Respirator tab
GB2553949B (en) 2015-05-14 2021-10-20 Halliburton Energy Services Inc Downhole fluids with high dielectric constant and high dielectric strength
CA2991412A1 (en) 2015-07-07 2017-01-12 3M Innovative Properties Company Substituted benzotriazole phenols
BR112018000291B1 (pt) 2015-07-07 2022-05-31 3M Innovative Properties Company Mantas de eletreto que compreendem aditivos acentuadores de carga
KR102662840B1 (ko) 2015-07-07 2024-05-03 쓰리엠 이노베이티브 프로퍼티즈 캄파니 이온성 첨가제를 갖는 중합체 매트릭스
EP3320055B1 (en) 2015-07-07 2021-03-03 3M Innovative Properties Company Substituted benzotriazole phenolate salts and antioxidant compositions formed therefrom
RU2015141569A (ru) 2015-09-30 2017-04-05 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской и клапаном выдоха
WO2017066284A1 (en) 2015-10-12 2017-04-20 3M Innovative Properties Company Filtering face-piece respirator including functional material and method of forming same
KR20180083886A (ko) 2015-11-11 2018-07-23 쓰리엠 이노베이티브 프로퍼티즈 캄파니 형상 유지형 편평-절첩식 호흡기
US11452891B2 (en) 2016-08-26 2022-09-27 3M Innovative Properties Company Pleated filter element comprising pleated filter media with edge dams, and method of making and using
JP6949944B2 (ja) 2016-09-16 2021-10-13 スリーエム イノベイティブ プロパティズ カンパニー 呼気弁及びそれを含む呼吸マスク
EP3532172A1 (en) 2016-10-28 2019-09-04 3M Innovative Properties Company Respirator including reinforcing element
JP7076718B2 (ja) 2017-01-05 2022-05-30 スリーエム イノベイティブ プロパティズ カンパニー 帯電強化添加剤を含むエレクトレットウェブ
RU2671037C2 (ru) 2017-03-17 2018-10-29 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской типа ffp3
WO2019012399A1 (en) 2017-07-14 2019-01-17 3M Innovative Properties Company ADAPTER FOR TRANSPORTING MULTIPLE FLOWS OF LIQUID
JP2021509449A (ja) 2017-12-28 2021-03-25 スリーエム イノベイティブ プロパティズ カンパニー 難燃性ポリマーを含むセラミックコーティングされた繊維、及び不織布構造の製造方法
KR20210124337A (ko) 2019-02-11 2021-10-14 쓰리엠 이노베이티브 프로퍼티즈 컴파니 연마 물품
BR112021020488A2 (pt) 2019-05-01 2022-02-15 Ascend Performance Mat Operations Llc Meio filtrante compreendendo camada de nanofibra de poliamida
US12000071B2 (en) 2019-06-26 2024-06-04 Solventum Intellectual Properties Company Method of making a nonwoven fiber web, nonwoven fiber web, and multi-component fiber
EP3990685A1 (en) 2019-06-28 2022-05-04 3M Innovative Properties Co. Core-sheath fibers, nonwoven fibrous web, and respirator including the same
WO2020261034A1 (en) 2019-06-28 2020-12-30 3M Innovative Properties Company Filter assembly, prefilter assembly, and respirator including the same
CN114555877A (zh) 2019-10-16 2022-05-27 3M创新有限公司 双功能熔体添加剂
US20220396684A1 (en) 2019-10-16 2022-12-15 3M Innovative Properties Company Substituted benzimidazole melt additives
WO2021111246A1 (en) 2019-12-03 2021-06-10 3M Innovative Properties Company Thiolate salt melt additives
CN115038829B (zh) 2019-12-03 2023-07-28 3M创新有限公司 芳族杂环熔体添加剂
EP4097284B1 (en) 2020-01-27 2024-05-29 3M Innovative Properties Company Substituted thiolate salt melt additives
WO2021152426A1 (en) 2020-01-27 2021-08-05 3M Innovative Properties Company Substituted thiol melt additives
DE102020107746A1 (de) 2020-03-20 2021-09-23 Solvamed Gmbh Verbesserte Atemschutzmaske
US11219255B2 (en) 2020-04-08 2022-01-11 Terry Earl Brady Self-contained, mobile breathing apparatus or appliance that supplies pathogen and endotoxin free, rhythmically breathable air to the wearer or treated space through active, continuous bio-deactivation and destruction of bacteria, fungi, viral and allergenic/antigenic matter safely when using benign, household, rechargeable filtration media
US20200376305A1 (en) 2020-06-10 2020-12-03 Noah Lang Personal protective equipment system for safe air, train or bus travel protecting against infectious agents including novel coronavirus - covid-19
KR20230117485A (ko) 2020-06-26 2023-08-08 자빌 인코퍼레이티드 폴리에스테르/폴리(메틸 메타크릴레이트) 물품 및 그의제조 방법
US11786853B2 (en) 2020-08-10 2023-10-17 F.N. Smith Corporation Facepiece electrostatic charging devices and methods thereof
WO2022034444A1 (en) 2020-08-11 2022-02-17 3M Innovative Properties Company Electret webs with benzoate salt charge-enhancing additives
JP2023547466A (ja) 2020-11-02 2023-11-10 スリーエム イノベイティブ プロパティズ カンパニー コア－シース繊維、不織繊維ウェブ、及びそれを含む濾過物品
WO2022118104A1 (en) 2020-12-01 2022-06-09 3M Innovative Properties Company Article for storage of bacteriophages and method thereof
WO2022130080A1 (en) 2020-12-18 2022-06-23 3M Innovative Properties Company Electrets comprising a substituted cyclotriphosphazene compound and articles therefrom
WO2023031697A1 (en) 2021-09-01 2023-03-09 3M Innovative Properties Company Anti-virus respirator and mask
CN114950736A (zh) * 2022-02-25 2022-08-30 长沙理工大学 太阳能板清洗用静电吸附尘水分离装置
DE102022000777A1 (de) 2022-03-04 2023-09-07 Oerlikon Textile Gmbh & Co. Kg Verfahren und Vorrichtung zur Herstellung von elektrostatisch geladenen Fasern sowie Elektret-Erzeugnis
US11871802B1 (en) 2022-08-17 2024-01-16 Integrated Pharma Services, Llc Pleating spacer and its use to provide improved facial masks and respirators
US20240115889A1 (en) 2022-10-07 2024-04-11 3M Innovative Properties Company Disposable, Flat-Fold Respirator Having Increased Stiffness in Selected Areas

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491889A (en) * 1942-01-21 1949-12-20 Owens Corning Fiberglass Corp Production of coated glass and the like products
US2464301A (en) * 1943-12-18 1949-03-15 American Viscose Corp Textile fibrous product
US2466906A (en) * 1946-11-23 1949-04-12 Ransburg Electro Coating Corp Method and apparatus for forming fibrous webs
US2740184A (en) * 1951-03-01 1956-04-03 Albert G Thomas Electrically charged material
BE534423A (US07968547-20110628-C00004.png) * 1953-12-24
US3016599A (en) * 1954-06-01 1962-01-16 Du Pont Microfiber and staple fiber batt
US3003304A (en) * 1955-10-31 1961-10-10 Rasmussen Ole-Bendt Method of manufacturing non-woven fabrics and yarns
US3333585A (en) * 1964-12-14 1967-08-01 Minnesota Mining & Mfg Cold weather face mask
US3456156A (en) * 1967-04-06 1969-07-15 Du Pont Apparatus for applying an electrostatic charge to fibrous material
US3490115A (en) * 1967-04-06 1970-01-20 Du Pont Apparatus for collecting charged fibrous material in sheet form
US3632443A (en) * 1968-04-27 1972-01-04 Sony Corp Method of making polypropylene electrets
NL6814644A (US07968547-20110628-C00004.png) * 1968-10-14 1970-04-16
US3644605A (en) * 1969-02-11 1972-02-22 Bell Telephone Labor Inc Method for producing permanent electret charges in dielectric materials
US4069026A (en) * 1970-06-29 1978-01-17 Bayer Aktiengesellschaft Filter made of electrostatically spun fibres
US3724174A (en) * 1970-09-28 1973-04-03 Bergwerksverband Gmbh Electrically operated dust mask
GB1337753A (en) * 1971-01-21 1973-11-21 Thermo Electron Corp Electrets
US3824052A (en) * 1971-04-15 1974-07-16 Deering Milliken Res Corp Apparatus to produce nonwoven fabric
FR2144933A5 (US07968547-20110628-C00004.png) * 1971-07-02 1973-02-16 Anvar
GB1387727A (en) * 1972-07-11 1975-03-19 Exxon Research Engineering Co Non-woven polymer laminate
FR2199430A5 (US07968547-20110628-C00004.png) * 1972-09-08 1974-04-05 Anvar
US3860369A (en) * 1972-11-02 1975-01-14 Du Pont Apparatus for making non-woven fibrous sheet
NO132463C (US07968547-20110628-C00004.png) * 1973-12-13 1975-11-19 Johnson & Johnson
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.
US4042740A (en) * 1974-09-20 1977-08-16 Minnesota Mining And Manufacturing Company Reinforced pillowed microfiber webs
US4148595A (en) * 1977-09-28 1979-04-10 E. I. Du Pont De Nemours And Company Coating for aerodynamic shield in apparatus for making non-woven web

Also Published As

Publication number Publication date
US4215682A (en) 1980-08-05
IT1116822B (it) 1986-02-10
NO151092C (no) 1985-02-06
GB2015253B (en) 1982-08-25
DK157286B (da) 1989-12-04
JPS62290477A (ja) 1987-12-17
IT7947886A0 (it) 1979-02-05
SE444893B (sv) 1986-05-20
JPH027671B2 (US07968547-20110628-C00004.png) 1990-02-20
CH642277A5 (de) 1984-04-13
JPS59124B2 (ja) 1984-01-05
NO790347L (no) 1979-08-07
ATA82779A (de) 1985-08-15
DE2904170A1 (de) 1979-08-09
NL7900855A (nl) 1979-08-08
SE7900929L (sv) 1979-08-07
JPS54113900A (en) 1979-09-05
AT380126B (de) 1986-04-10
CA1122546A (en) 1982-04-27
BR7900546A (pt) 1979-09-11
ES477436A1 (es) 1980-09-01
AU4391279A (en) 1979-09-06
DK157286C (da) 1990-05-07
FR2416535A1 (fr) 1979-08-31
NO151092B (no) 1984-10-29
GB2015253A (en) 1979-09-05
DK45179A (da) 1979-08-07
AU507773B2 (en) 1980-02-28

Similar Documents

Publication Publication Date Title
FR2415421B1 (US07968547-20110628-C00004.png)
FR2414408B1 (US07968547-20110628-C00004.png)
AU3898778A (US07968547-20110628-C00004.png)
AU73950S (US07968547-20110628-C00004.png)
BE871570A (US07968547-20110628-C00004.png)
BG25806A1 (US07968547-20110628-C00004.png)
BG25814A2 (US07968547-20110628-C00004.png)
BG25816A1 (US07968547-20110628-C00004.png)
BG25818A1 (US07968547-20110628-C00004.png)
BG25835A1 (US07968547-20110628-C00004.png)
BG25836A1 (US07968547-20110628-C00004.png)
BG25842A1 (US07968547-20110628-C00004.png)
BG25843A1 (US07968547-20110628-C00004.png)
BG25849A1 (US07968547-20110628-C00004.png)
BG25854A1 (US07968547-20110628-C00004.png)
BG25857A1 (US07968547-20110628-C00004.png)
BG25858A1 (US07968547-20110628-C00004.png)
BG25871A1 (US07968547-20110628-C00004.png)
BG25872A1 (US07968547-20110628-C00004.png)
BG25874A1 (US07968547-20110628-C00004.png)
BG25875A1 (US07968547-20110628-C00004.png)
BG25879A1 (US07968547-20110628-C00004.png)
BG25889A1 (US07968547-20110628-C00004.png)
BG25897A1 (US07968547-20110628-C00004.png)
BG25898A1 (US07968547-20110628-C00004.png)