DE69417041T2 - Verfahren zur aufladung von elektretfiltermedien - Google Patents

Verfahren zur aufladung von elektretfiltermedien

Info

Publication number
DE69417041T2
DE69417041T2 DE69417041T DE69417041T DE69417041T2 DE 69417041 T2 DE69417041 T2 DE 69417041T2 DE 69417041 T DE69417041 T DE 69417041T DE 69417041 T DE69417041 T DE 69417041T DE 69417041 T2 DE69417041 T2 DE 69417041T2
Authority
DE
Germany
Prior art keywords
filter media
charging electric
electric filter
charging
media
Prior art date
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 - Lifetime
Application number
DE69417041T
Other languages
English (en)
Other versions
DE69417041D1 (de
Inventor
Seyed Angadjivand
Marvin Jones
Daniel Meyer
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22317013&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69417041(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE69417041D1 publication Critical patent/DE69417041D1/de
Application granted granted Critical
Publication of DE69417041T2 publication Critical patent/DE69417041T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/01—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof
    • D06M11/05—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with hydrogen, water or heavy water; with hydrides of metals or complexes thereof; with boranes, diboranes, silanes, disilanes, phosphines, diphosphines, stibines, distibines, arsines, or diarsines or complexes thereof with water, e.g. steam; with heavy water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • 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
    • 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
    • D04H1/407—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 containing absorbing substances, e.g. activated carbon
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • 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
    • D04H1/44—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—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 the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • 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
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
    • D06M10/025—Corona discharge or low temperature plasma
    • 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
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres
    • B01D2239/0225—Side-by-side
    • 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
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/0216—Bicomponent or multicomponent fibres
    • B01D2239/0233—Island-in-sea
    • 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
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0618—Non-woven
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0622—Melt-blown
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/064—The fibres being mixed
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0654—Support layers
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0663—The layers being joined by hydro-entangling
    • 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
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/069—Special geometry of layers
    • 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
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/48—Processes of making 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
    • Y10S55/05—Methods of making filter
    • 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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/614—Strand or fiber material specified as having microdimensions [i.e., microfiber]
    • Y10T442/626—Microfiber is synthetic polymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Plasma & Fusion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Electrostatic Separation (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
DE69417041T 1993-08-17 1994-08-17 Verfahren zur aufladung von elektretfiltermedien Expired - Lifetime DE69417041T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10751793A 1993-08-17 1993-08-17
PCT/US1994/009275 WO1995005501A2 (en) 1993-08-17 1994-08-17 Method of charging electret filter media

Publications (2)

Publication Number Publication Date
DE69417041D1 DE69417041D1 (de) 1999-04-15
DE69417041T2 true DE69417041T2 (de) 1999-07-15

Family

ID=22317013

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69417041T Expired - Lifetime DE69417041T2 (de) 1993-08-17 1994-08-17 Verfahren zur aufladung von elektretfiltermedien
DE69435251T Expired - Lifetime DE69435251D1 (de) 1993-08-17 1994-08-17 Verfahren zur aufladung elektretfiltermedien

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69435251T Expired - Lifetime DE69435251D1 (de) 1993-08-17 1994-08-17 Verfahren zur aufladung elektretfiltermedien

Country Status (13)

Country Link
US (3) US5496507A (de)
EP (2) EP0845554B1 (de)
JP (2) JP3476084B2 (de)
KR (1) KR100336012B1 (de)
CN (1) CN1052042C (de)
AU (1) AU680561B2 (de)
BR (1) BR9407259A (de)
CA (1) CA2168126C (de)
DE (2) DE69417041T2 (de)
ES (2) ES2336163T3 (de)
PL (1) PL173854B1 (de)
RU (1) RU2130521C1 (de)
WO (1) WO1995005501A2 (de)

Families Citing this family (325)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2336163T3 (es) * 1993-08-17 2010-04-08 Minnesota Mining And Manufacturing Company Metodo para cargar medios filtrantes de electretos.
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
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
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
US5647881A (en) * 1995-04-20 1997-07-15 Minnesota Mining And Manufacturing Company Shock resistant high efficiency vacuum cleaner filter bag
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
US5709735A (en) * 1995-10-20 1998-01-20 Kimberly-Clark Worldwide, Inc. High stiffness nonwoven filter medium
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
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
AU4901297A (en) * 1996-10-18 1998-05-15 Rick L. Chapman High efficiency permanent air filter
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
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
US6068799A (en) * 1997-10-01 2000-05-30 3M Innovative Properties Company Method of making 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
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs
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
US6036752A (en) * 1998-07-28 2000-03-14 3M Innovative Properties Company Pleated filter
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
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
US6484723B2 (en) * 1999-02-11 2002-11-26 Eileen Haas Tracheostomy air filtration system
US6394090B1 (en) 1999-02-17 2002-05-28 3M Innovative Properties Company Flat-folded personal respiratory protection devices and processes for preparing same
US6103181A (en) * 1999-02-17 2000-08-15 Filtrona International Limited Method and apparatus for spinning a web of mixed fibers, and products produced therefrom
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
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
US6288157B1 (en) 1999-05-11 2001-09-11 3M Innovative Properties Company Alkylated fluorochemical oligomers and use thereof
US6525127B1 (en) 1999-05-11 2003-02-25 3M Innovative Properties Company Alkylated fluorochemical oligomers and use thereof in the treatment of fibrous substrates
EP1068889A1 (de) * 1999-07-16 2001-01-17 3M Innovative Properties Company Hochwirkasamer medizinischer Beatmungsfilter auf Basis von einem aus nichtgewebtem aus thermoplastischen Harzfasern Netz bestehenden Filtrationsmittels
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
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
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
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
US6454839B1 (en) 1999-10-19 2002-09-24 3M Innovative Properties Company Electrofiltration apparatus
US7128835B1 (en) 1999-11-23 2006-10-31 Pall Corporation Fluid treatment packs, fluid treatment elements, and methods for treating fluids
US6391948B1 (en) 1999-12-14 2002-05-21 3M Innovative Properties Company Triazine compounds and use thereof
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
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
US6743273B2 (en) * 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US20020092423A1 (en) * 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
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
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
US6740142B2 (en) 2000-09-05 2004-05-25 Donaldson Company, Inc. Industrial bag house elements
US6673136B2 (en) * 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
US6800117B2 (en) * 2000-09-05 2004-10-05 Donaldson Company, Inc. Filtration arrangement utilizing pleated construction and method
JP4581213B2 (ja) * 2000-10-11 2010-11-17 東レ株式会社 エレクトレット加工品の製造方法
JP4581212B2 (ja) * 2000-10-11 2010-11-17 東レ株式会社 エレクトレット加工品の製造方法
JP3780916B2 (ja) * 2000-11-28 2006-05-31 東レ株式会社 エレクトレット加工品の製造方法
US6420024B1 (en) 2000-12-21 2002-07-16 3M Innovative Properties Company Charged microfibers, microfibrillated articles and use thereof
ES2271224T3 (es) * 2001-01-17 2007-04-16 Polymer Group Inc. Medios de filtracion enmarañados por via hidraulica y procedimiento.
US7280014B2 (en) * 2001-03-13 2007-10-09 Rochester Institute Of Technology Micro-electro-mechanical switch and a method of using and making thereof
EP1247558A1 (de) * 2001-04-07 2002-10-09 3M Innovative Properties Company Kombinationsfilter zur Filtrierung von Fluiden
JP4686896B2 (ja) * 2001-05-11 2011-05-25 東レ株式会社 エレクトレット加工品の製造方法
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
AU2002303933A1 (en) * 2001-05-31 2002-12-09 Rochester Institute Of Technology Fluidic valves, agitators, and pumps and methods thereof
US6773488B2 (en) 2001-06-11 2004-08-10 Rochester Institute Of Technology Electrostatic filter and a method thereof
US6969484B2 (en) 2001-06-18 2005-11-29 Toray Industries, Inc. Manufacturing method and device for electret processed product
JP3932981B2 (ja) * 2001-06-18 2007-06-20 東レ株式会社 エレクトレット加工品の製造方法及び装置
US6589317B2 (en) 2001-08-10 2003-07-08 3M Innovative Properties Company Structured surface filtration media array
US7211923B2 (en) * 2001-10-26 2007-05-01 Nth Tech Corporation Rotational motion based, electrostatic power source and methods thereof
US7378775B2 (en) * 2001-10-26 2008-05-27 Nth Tech Corporation Motion based, electrostatic power source and methods thereof
EP1471176B1 (de) * 2002-01-11 2016-03-23 Japan Vilene Company, Ltd. Verfahren zur herstellung von elektret
JP4352302B2 (ja) * 2002-01-29 2009-10-28 東洋紡績株式会社 エレクトレット濾材およびその製造方法
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
JP2004057976A (ja) * 2002-07-30 2004-02-26 Toyobo Co Ltd 生分解性を有するエレクトレット濾材およびその製造方法
JP2004060110A (ja) * 2002-07-30 2004-02-26 Toyobo Co Ltd エレクトレット濾材の製造方法
JP4078592B2 (ja) * 2002-08-01 2008-04-23 東洋紡績株式会社 エレクトレット濾材の製造方法
US6893711B2 (en) * 2002-08-05 2005-05-17 Kimberly-Clark Worldwide, Inc. Acoustical insulation material containing fine thermoplastic fibers
US20050026527A1 (en) * 2002-08-05 2005-02-03 Schmidt Richard John Nonwoven containing acoustical insulation laminate
US7955997B2 (en) * 2002-09-16 2011-06-07 Triosyn Corp. Electrostatically charged filter media incorporating an active agent
US6874499B2 (en) * 2002-09-23 2005-04-05 3M Innovative Properties Company Filter element that has a thermo-formed housing around filter material
US6928657B2 (en) * 2002-10-25 2005-08-16 Kimberly-Clark Worldwide, Inc. Face mask having hook and loop type fastener
US20040078860A1 (en) * 2002-10-25 2004-04-29 Bell Daryl Steven Single piece face mask
JP2004195357A (ja) * 2002-12-18 2004-07-15 Toyobo Co Ltd エレクトレット濾材の製造方法
US7032751B2 (en) * 2002-12-19 2006-04-25 Kimberly-Clark Worldwide, Inc. Dispensing assembly for single piece face mask
US7217582B2 (en) * 2003-08-29 2007-05-15 Rochester Institute Of Technology Method for non-damaging charge injection and a system thereof
US7287328B2 (en) * 2003-08-29 2007-10-30 Rochester Institute Of Technology Methods for distributed electrode injection
US20050106982A1 (en) * 2003-11-17 2005-05-19 3M Innovative Properties Company Nonwoven elastic fibrous webs and methods for making them
WO2005063359A1 (ja) * 2003-12-25 2005-07-14 Toray Industries, Inc. エアフィルター濾材およびフィルターユニット
US20050148266A1 (en) * 2003-12-30 2005-07-07 Myers David L. Self-supporting pleated electret filter media
CN101791153A (zh) * 2004-01-13 2010-08-04 黄重德 个人用吸入过滤器
US8581308B2 (en) * 2004-02-19 2013-11-12 Rochester Institute Of Technology High temperature embedded charge devices and methods thereof
US6858297B1 (en) 2004-04-05 2005-02-22 3M Innovative Properties Company Aligned fiber web
US20050217226A1 (en) * 2004-04-05 2005-10-06 3M Innovative Properties Company Pleated aligned web filter
US7896940B2 (en) * 2004-07-09 2011-03-01 3M Innovative Properties Company Self-supporting pleated filter media
US7320722B2 (en) * 2004-10-29 2008-01-22 3M Innovative Properties Company Respiratory protection device that has rapid threaded clean air source attachment
US7419526B2 (en) * 2005-03-03 2008-09-02 3M Innovative Properties Company Conformal filter cartridges and methods
WO2006096486A2 (en) * 2005-03-07 2006-09-14 3M Innovative Properties Company Vehicle passenger compartment air filter devices
US20060231100A1 (en) 2005-04-15 2006-10-19 Walker Garry J Supplied air respirator that has an adjustable length hose
US7311050B2 (en) 2005-04-19 2007-12-25 Kamterter Ii, L.L.C. Systems for the control and use of fluids and particles
US7536962B2 (en) * 2005-04-19 2009-05-26 Kamterter Ii, L.L.C. Systems for the control and use of fluids and particles
US8308075B2 (en) 2005-04-19 2012-11-13 Kamterter Products, Llc Systems for the control and use of fluids and particles
ATE413911T1 (de) * 2005-04-22 2008-11-15 3M Innovative Properties Co Luftfiltervorrichtungen für fahrgastzellen
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
US8171933B2 (en) * 2005-08-25 2012-05-08 3M Innovative Properties Company Respirator having preloaded nose clip
US7393269B2 (en) 2005-09-16 2008-07-01 3M Innovative Properties Company Abrasive filter assembly and methods of making same
US20070074731A1 (en) * 2005-10-05 2007-04-05 Nth Tech Corporation Bio-implantable energy harvester systems and methods thereof
JP2009512578A (ja) * 2005-10-19 2009-03-26 スリーエム イノベイティブ プロパティズ カンパニー 音響吸収特性を有する多層物品、並びにその製造および使用方法
CZ305244B6 (cs) * 2005-11-10 2015-07-01 Elmarco S.R.O. Způsob a zařízení k výrobě nanovláken elektrostatickým zvlákňováním roztoků nebo tavenin polymerů
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
US8325097B2 (en) * 2006-01-14 2012-12-04 Research In Motion Rf, Inc. Adaptively tunable antennas and method of operation therefore
US7390351B2 (en) 2006-02-09 2008-06-24 3M Innovative Properties Company Electrets and compounds useful in electrets
US7601192B2 (en) * 2006-06-07 2009-10-13 Gore Enterprise Holdings, Inc. Recirculation filter
US7338355B2 (en) * 2006-06-13 2008-03-04 3M Innovative Properties Company Abrasive article and methods of making and using the same
US9134471B2 (en) * 2006-06-28 2015-09-15 3M Innovative Properties Company Oriented polymeric articles and method
US7902096B2 (en) * 2006-07-31 2011-03-08 3M Innovative Properties Company Monocomponent monolayer meltblown web and meltblowing apparatus
US7807591B2 (en) * 2006-07-31 2010-10-05 3M Innovative Properties Company Fibrous web comprising microfibers dispersed among bonded meltspun fibers
US7905973B2 (en) * 2006-07-31 2011-03-15 3M Innovative Properties Company Molded monocomponent monolayer respirator
US9139940B2 (en) 2006-07-31 2015-09-22 3M Innovative Properties Company Bonded nonwoven fibrous webs comprising softenable oriented semicrystalline polymeric fibers and apparatus and methods for preparing such webs
US9770058B2 (en) * 2006-07-17 2017-09-26 3M Innovative Properties Company Flat-fold respirator with monocomponent filtration/stiffening monolayer
US7858163B2 (en) * 2006-07-31 2010-12-28 3M Innovative Properties Company Molded monocomponent monolayer respirator with bimodal monolayer monocomponent media
US8029723B2 (en) * 2006-07-31 2011-10-04 3M Innovative Properties Company Method for making shaped filtration articles
US7947142B2 (en) * 2006-07-31 2011-05-24 3M Innovative Properties Company Pleated filter with monolayer monocomponent meltspun media
US7754041B2 (en) * 2006-07-31 2010-07-13 3M Innovative Properties Company Pleated filter with bimodal monolayer monocomponent media
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
US20080271740A1 (en) 2007-05-03 2008-11-06 3M Innovative Properties Company Maintenance-free flat-fold respirator that includes a graspable tab
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
US9770611B2 (en) 2007-05-03 2017-09-26 3M Innovative Properties Company Maintenance-free anti-fog respirator
US20080314400A1 (en) * 2007-05-31 2008-12-25 Philip Morris Usa Inc. Filter including electrostatically charged fiber material
US7989372B2 (en) * 2007-06-22 2011-08-02 3M Innovative Properties Company Molded respirator comprising meltblown fiber web with staple fibers
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
CN103801155B (zh) * 2007-07-26 2016-09-28 3M创新有限公司 高度带电且电荷稳定的纳米纤维网
WO2009014539A1 (en) * 2007-07-26 2009-01-29 3M Innovative Properties Company Highly charged, charge stable nanofiber web
US8070862B2 (en) * 2007-09-04 2011-12-06 3M Innovative Properties Company Dust collection device for sanding tool
JP5449170B2 (ja) 2007-09-20 2014-03-19 スリーエム イノベイティブ プロパティズ カンパニー 伸展可能なマスク本体を有するフィルタリング顔面装着レスピレータ
US8986432B2 (en) * 2007-11-09 2015-03-24 Hollingsworth & Vose Company Meltblown filter medium, related applications and uses
WO2009062009A2 (en) * 2007-11-09 2009-05-14 Hollingsworth & Vose Company Meltblown filter medium
WO2009076064A1 (en) * 2007-12-06 2009-06-18 3M Innovative Properties Company Electret webs with charge-enhancing additives
KR101513761B1 (ko) * 2007-12-21 2015-04-20 쓰리엠 이노베이티브 프로퍼티즈 컴파니 결합 필터매체 주름팩
WO2009086339A2 (en) 2007-12-27 2009-07-09 3M Innovative Properties Company Dust collection device for sanding tool
JP5654356B2 (ja) * 2007-12-28 2015-01-14 スリーエム イノベイティブ プロパティズ カンパニー 複合不織布ウェブ並びにこれの製造及び使用方法
JP5221676B2 (ja) * 2007-12-31 2013-06-26 スリーエム イノベイティブ プロパティズ カンパニー 流体濾過物品とその作製方法及び使用方法
US9689096B2 (en) * 2007-12-31 2017-06-27 3M Innovative Properties Company Composite non-woven fibrous webs having continuous particulate phase and methods of making and using the same
EP2257358B1 (de) 2008-02-21 2018-08-15 3M Innovative Properties Company Addukte von aminen und polycarboxylsäuren und filtermedien mit diesen addukten
JP2009254418A (ja) * 2008-04-11 2009-11-05 Three M Innovative Properties Co マスク用ノーズクリップ及びマスク
RU2010148559A (ru) * 2008-06-02 2012-07-20 3М Инновейтив Пропертиз Компани (US) Усиливающие заряд добавки для электретов
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
CN102046871B (zh) * 2008-06-02 2013-02-13 3M创新有限公司 驻极体料片、驻极体过滤介质和制备驻极体料片的方法
WO2009152345A1 (en) 2008-06-12 2009-12-17 3M Innovative Properties Company Biocompatible hydrophilic compositions
WO2009152349A1 (en) * 2008-06-12 2009-12-17 3M Innovative Properties Company Melt blown fine fibers and methods of manufacture
EP2303770B1 (de) * 2008-06-30 2014-07-09 3M Innovative Properties Company Verfahren zur in-situ-bildung von metallnanoclustern in einem porösen substrat
WO2010027539A1 (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
US8057608B1 (en) 2008-09-26 2011-11-15 Research International, Inc Extraction device and methods
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
US8021996B2 (en) 2008-12-23 2011-09-20 Kimberly-Clark Worldwide, Inc. Nonwoven web and filter media containing partially split multicomponent fibers
CN102317526B (zh) 2008-12-23 2016-08-24 3M创新有限公司 图案化纺粘纤维质基料及其制备和使用方法
US9840794B2 (en) 2008-12-30 2017-12-12 3M Innovative Properties Compnay Elastic nonwoven fibrous webs and methods of making and using
US8105409B2 (en) 2009-01-30 2012-01-31 General Electric Company Filter retention system
US9682512B2 (en) 2009-02-06 2017-06-20 Nike, Inc. Methods of joining textiles and other elements incorporating a thermoplastic polymer material
US8906275B2 (en) 2012-05-29 2014-12-09 Nike, Inc. Textured elements incorporating non-woven textile materials and methods for manufacturing the textured elements
US20100199406A1 (en) 2009-02-06 2010-08-12 Nike, Inc. Thermoplastic Non-Woven Textile Elements
US20100199520A1 (en) * 2009-02-06 2010-08-12 Nike, Inc. Textured Thermoplastic Non-Woven Elements
US8850719B2 (en) 2009-02-06 2014-10-07 Nike, Inc. Layered thermoplastic non-woven textile elements
EP2398956A2 (de) 2009-02-20 2011-12-28 3M Innovative Properties Company Antimikrobielles elektretvlies
BRPI1006777A2 (pt) 2009-03-31 2019-09-24 3M Innovative Properties Co "mantas, artigo, lençol cirúrgico, avental cirúrgico, invólucro de esterilização, material de contato para ferimentos e métodos para fabricação de uma manta"
US8048186B2 (en) 2009-04-02 2011-11-01 General Electric Company Filter retention systems and devices
KR101679894B1 (ko) 2009-04-03 2016-11-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 일렉트릿 웨브를 포함하는, 올레핀성 웨브를 위한 가공 보조제
US20100252047A1 (en) * 2009-04-03 2010-10-07 Kirk Seth M Remote fluorination of fibrous filter webs
EP2414573B1 (de) * 2009-04-03 2013-08-28 3M Innovative Properties Company Elektretbahnen mit ladungsverstärkenden zusätzen
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
ITPD20090117A1 (it) * 2009-05-04 2010-11-05 Euroflex Srl Spruzzatore a mano per liquidi detergenti
JP2010268346A (ja) 2009-05-18 2010-11-25 Sharp Corp 一の機能に組合せられる機能についての情報を表示する画像形成装置
JP4875726B2 (ja) 2009-05-18 2012-02-15 シャープ株式会社 一の機能に組合せられる機能についての情報を処理する情報処理装置及びその情報処理装置を備える画像形成装置
JP4875727B2 (ja) 2009-05-18 2012-02-15 シャープ株式会社 一の機能に組合せられる機能についての情報を処理する情報処理装置及びその情報処理装置を備える画像形成装置
JP5819832B2 (ja) 2009-09-01 2015-11-24 スリーエム イノベイティブ プロパティズ カンパニー ナノ繊維ウェブを形成するためのノズル、装置、システム及び方法、並びにこの方法によって作製される物品
ES2676296T3 (es) 2009-09-11 2018-07-18 Breathe Safely Inc. Máscara facial pasiva de filtrado desechable con junta dentro de junta y junta con puente opcional
AU2010224323A1 (en) 2009-09-18 2011-04-07 3M Innovative Properties Company Filtering face respirator having grasping feature indicator
US8640704B2 (en) 2009-09-18 2014-02-04 3M Innovative Properties Company Flat-fold filtering face-piece respirator having structural weld pattern
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
KR20120087174A (ko) 2009-11-18 2012-08-06 쓰리엠 이노베이티브 프로퍼티즈 컴파니 보강된 필터 매체
CN102656306B (zh) 2009-11-24 2015-09-23 3M创新有限公司 使用形状记忆聚合物的制品和方法
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
JP2013515174A (ja) 2009-12-17 2013-05-02 スリーエム イノベイティブ プロパティズ カンパニー 寸法安定性不織布繊維ウェブ、メルトブローン微細繊維、並びにこれらの製造及び使用方法
US9194065B2 (en) * 2009-12-17 2015-11-24 3M Innovative Properties Company Dimensionally stable nonwoven fibrous webs and methods of making and using the same
KR101869568B1 (ko) 2009-12-30 2018-06-20 쓰리엠 이노베이티브 프로퍼티즈 컴파니 마스크 본체 내에 팽창 메시를 갖는 안면부 여과식 호흡기
US9539532B2 (en) 2010-01-18 2017-01-10 3M Innovative Properties Company Air filter with sorbent particles
AU2011218854B2 (en) 2010-02-23 2015-03-12 3M Innovative Properties Company Dimensionally stable nonwoven fibrous webs and methods of making and using the same
US8087492B2 (en) * 2010-03-08 2012-01-03 Huntair, Inc. Methods and systems for integrating sound attenuation into a filter bank
JP5866338B2 (ja) 2010-04-22 2016-02-17 スリーエム イノベイティブ プロパティズ カンパニー 化学的に活性な微粒子を含有する不織布繊維ウェブ及びそれを作製及び使用する方法
CN102859060B (zh) 2010-04-22 2016-03-02 3M创新有限公司 含有化学活性颗粒的非织造纳米纤维幅材以及制造和使用非织造纳米纤维幅材的方法
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
JP5475541B2 (ja) * 2010-05-07 2014-04-16 日本バイリーン株式会社 帯電フィルタ及びマスク
US20120017911A1 (en) 2010-07-26 2012-01-26 3M Innovative Properties Company Filtering face-piece respirator having foam shaping layer
EP2609238B1 (de) 2010-08-23 2016-12-07 Fiberweb Holdings Limited Vliesfaserbahn und fasern mit elektreteigenschaften, herstellungsverfahren dafür und ihre verwendung
TW201221714A (en) 2010-10-14 2012-06-01 3M Innovative Properties Co Dimensionally stable nonwoven fibrous webs and methods of making and using the same
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
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
RU2477540C2 (ru) * 2011-04-11 2013-03-10 Государственное образовательное учреждение высшего профессионального образования "Российский государственный педагогический университет им. А.И. Герцена" Способ изготовления пленочного электрета
KR20140037942A (ko) 2011-06-30 2014-03-27 쓰리엠 이노베이티브 프로퍼티즈 캄파니 부직 일렉트릿 섬유질 웨브 및 이를 제조하는 방법
US9700743B2 (en) 2012-07-31 2017-07-11 3M Innovative Properties Company Respiratory assembly including latching mechanism
RU2572172C2 (ru) 2011-08-01 2015-12-27 3М Инновейтив Пропетриз Компани Сборочный узел респиратора, содержащий фиксирующий механизм
KR102015880B1 (ko) 2011-12-16 2019-08-29 도레이 카부시키가이샤 혼섬 부직포, 적층 시트, 필터, 및 혼섬 부직포의 제조 방법
US20130255103A1 (en) 2012-04-03 2013-10-03 Nike, Inc. Apparel And Other Products Incorporating A Thermoplastic Polymer Material
AU2013329071B2 (en) 2012-10-12 2016-12-15 3M Innovative Properties Company Multi-layer articles
US11116998B2 (en) 2012-12-27 2021-09-14 3M Innovative Properties Company Filtering face-piece respirator having folded flange
US10182603B2 (en) 2012-12-27 2019-01-22 3M Innovative Properties Company Filtering face-piece respirator having strap-activated folded flange
US9815068B2 (en) 2012-12-28 2017-11-14 3M Innovative Properties Company Electret webs with charge-enhancing additives
US9408424B2 (en) 2013-01-10 2016-08-09 3M Innovative Properties Company Filtering face-piece respirator having a face seal comprising a water-vapor-breathable layer
US9510626B2 (en) 2013-02-01 2016-12-06 3M Innovative Properties Company Sleeve-fit respirator cartridge
TW201444691A (zh) 2013-04-11 2014-12-01 Toray Industries 混纖不織布及其製造方法
RU2635160C2 (ru) 2013-04-19 2017-11-09 3М Инновейтив Пропертиз Компани Электретные полотна с добавками, способствующими накоплению заряда
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
ES2609483T3 (es) * 2013-08-09 2017-04-20 Eurofilters N.V. Bolsa de filtro para una aspiradora, así como procedimiento para la determinación de una superficie de una bolsa de filtro de aspiradora en la que incide directamente el flujo de aire
RU2528618C1 (ru) * 2013-11-19 2014-09-20 федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Российский государственный педагогический университет им. А.И. Герцена" (РГПУ им. А.И. Герцена) Способ изготовления пленочного электрета
KR102251716B1 (ko) 2013-11-26 2021-05-13 쓰리엠 이노베이티브 프로퍼티즈 캄파니 치수 안정적인 용융-취입된 부직 섬유질 구조체, 및 이를 제조하기 위한 방법 및 장치
KR101837641B1 (ko) 2013-12-17 2018-03-12 쓰리엠 이노베이티브 프로퍼티즈 컴파니 공기질 표시기
WO2015130591A1 (en) 2014-02-27 2015-09-03 3M Innovative Properties Company Respirator having elastic straps having openwork structure
KR20160127058A (ko) 2014-02-28 2016-11-02 쓰리엠 이노베이티브 프로퍼티즈 컴파니 리본 및 스트랜드의 중합체 네팅을 포함하는 여과 매체
US10040621B2 (en) 2014-03-20 2018-08-07 3M Innovative Properties Company Filtering face-piece respirator dispenser
WO2015199972A1 (en) 2014-06-23 2015-12-30 3M Innovative Properties Company Electret webs with charge-enhancing additives
CN106573158B (zh) 2014-08-18 2022-06-28 3M创新有限公司 包括聚合物结网的呼吸器及其形成方法
KR20170044159A (ko) 2014-08-26 2017-04-24 쓰리엠 이노베이티브 프로퍼티즈 캄파니 폴리락트산 섬유를 포함하는 방사결합된 웨브
BR112017008761A2 (pt) 2014-10-31 2017-12-19 3M Innovative Properties Co respirador que tem estrutura filtrante corrugada
WO2016096883A1 (de) * 2014-12-18 2016-06-23 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum aufladen einer faserbahn
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
US10201198B2 (en) * 2014-12-23 2019-02-12 Profit Royal Pharmaceutical Limited Protective masks with coating comprising different electrospun fibers interweaved with each other, formulations forming the same, and method of producing thereof
JPWO2016147866A1 (ja) * 2015-03-16 2018-02-08 東レ株式会社 エレクトレット繊維シート
GB201508114D0 (en) 2015-05-12 2015-06-24 3M Innovative Properties Co Respirator tab
WO2017007677A1 (en) 2015-07-07 2017-01-12 3M Innovative Properties Company Substituted benzotriazole phenolate salts and antioxidant compositions formed therefrom
JP6975705B2 (ja) 2015-07-07 2021-12-01 スリーエム イノベイティブ プロパティズ カンパニー 置換ベンゾトリアゾールフェノール
MX2018000117A (es) 2015-07-07 2018-03-22 3M Innovative Properties Co Tramas de electreto con aditivos mejoradores de la carga.
CN108026327B (zh) 2015-07-07 2022-07-05 3M创新有限公司 具有离子添加剂的聚合物基体
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
CA2928138A1 (en) 2015-11-10 2017-05-10 3M Innovative Properties Company Air filter use indicators
KR20180083886A (ko) 2015-11-11 2018-07-23 쓰리엠 이노베이티브 프로퍼티즈 캄파니 형상 유지형 편평-절첩식 호흡기
WO2017110299A1 (ja) * 2015-12-22 2017-06-29 東レ株式会社 エレクトレット繊維シート
JP7010452B2 (ja) 2016-03-14 2022-02-10 スリーエム イノベイティブ プロパティズ カンパニー 反応性ガス用のポリマー収着剤を含むエアフィルタ
US10960341B2 (en) 2016-03-14 2021-03-30 3M Innovative Properties Company Air filters comprising polymeric sorbents for aldehydes
KR102444323B1 (ko) 2016-03-14 2022-09-16 쓰리엠 이노베이티브 프로퍼티즈 캄파니 알데하이드용 중합체 수착제를 포함하는 복합 과립제
CN114413411B (zh) 2016-03-24 2023-09-29 3M创新有限公司 操作室内空气净化器的方法
CA3034840A1 (en) * 2016-08-26 2018-03-01 3M Innovative Properties Company Improved room air purifiers and filtration media
CN106245230A (zh) * 2016-08-31 2016-12-21 侯慕毅 一种保温吸音材料及其成型方法与专用成型装置
US10119469B2 (en) 2016-09-15 2018-11-06 General Electric Company Method and apparatus for modularized inlet silencer baffles
US10722990B2 (en) 2016-09-15 2020-07-28 General Electric Company Method for installing and removing modularized silencer baffles
EP3512608B1 (de) 2016-09-16 2023-12-06 3M Innovative Properties Company Ausatmungsventil und atemschutzgerät damit
DE102016119480A1 (de) * 2016-10-12 2018-04-12 TRüTZSCHLER GMBH & CO. KG Düsenbalken für die Bearbeitung von Fasern mit Wasserstrahlen
US20210283435A1 (en) 2016-10-28 2021-09-16 3M Innovative Properties Company Respirator Including Reinforcing Element
KR20190077528A (ko) 2016-11-14 2019-07-03 쓰리엠 이노베이티브 프로퍼티즈 캄파니 금속-함유 중합체 수착제를 포함하는 공기 필터
JP2018095973A (ja) 2016-12-08 2018-06-21 東レ株式会社 メルトブロー不織布
US20190336896A1 (en) 2017-01-05 2019-11-07 3M Innovative Properties Company Electret webs with charge-enhancing additives
CN108278157B (zh) 2017-01-06 2022-08-02 通用电气公司 用于改进的入口消音挡板的系统和方法
CN108278158B (zh) 2017-01-06 2022-05-13 通用电气公司 用于改进的入口消音挡板的系统和方法
US20180243674A1 (en) * 2017-02-21 2018-08-30 Hollingsworth & Vose Company Electret-containing filter media
RU2671037C2 (ru) 2017-03-17 2018-10-29 3М Инновейтив Пропертиз Компани Складной респиратор с лицевой маской типа ffp3
CN106964199B (zh) * 2017-05-04 2022-08-09 浙江金海高科股份有限公司 驻极体材料的液体充电方法和装置
CN110719805B (zh) 2017-06-16 2022-12-27 3M创新有限公司 包含用于醛的聚合物吸附剂的空气过滤器
JP7186213B2 (ja) 2017-07-14 2022-12-08 スリーエム イノベイティブ プロパティズ カンパニー 複数の液体ストリームを搬送するためのアダプタ
CN111819245A (zh) 2017-12-28 2020-10-23 3M创新有限公司 包含阻燃聚合物的陶瓷涂覆的纤维以及制备非织造结构的方法
KR20200116449A (ko) 2018-02-15 2020-10-12 도레이 카부시키가이샤 부직포 및 이것을 사용하여 이루어지는 에어 필터 여재
WO2019176743A1 (ja) 2018-03-13 2019-09-19 三井化学株式会社 通気性シート、積層体および複合体
EP3794171B1 (de) * 2018-05-17 2023-11-29 University of Tennessee Research Foundation Verfahren zur sättigung von vliesstoffen mit flüssigkeit und herstellung eines elektrets daraus
WO2020223638A1 (en) 2019-05-01 2020-11-05 Ascend Performance Materials Operations Llc Filter media comprising polyamide nanofiber layer
EP3990686B1 (de) 2019-06-26 2024-01-03 3M Innovative Properties Company Verfahren zur herstellung einer faservliesbahn, sowie eine faservliesbahn
KR20220024679A (ko) * 2019-06-28 2022-03-03 쓰리엠 이노베이티브 프로퍼티즈 캄파니 코어-시스 섬유, 부직 섬유질 웨브, 및 이를 포함하는 호흡기
US20220323890A1 (en) * 2019-06-28 2022-10-13 3M Innovative Properties Company Filter assembly, prefilter assembly, and respirator including the same
RU196451U1 (ru) * 2019-07-18 2020-03-02 Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) Устройство для изготовления электретов
WO2021074863A1 (en) 2019-10-16 2021-04-22 3M Innovative Properties Company Dual-function melt additives
CN114555691B (zh) 2019-10-16 2023-11-28 3M创新有限公司 取代的苯并咪唑熔体添加剂
CN110820174B (zh) * 2019-11-20 2021-05-28 邯郸恒永防护洁净用品有限公司 一种聚丙烯熔喷无纺布的驻极设备
US20220410045A1 (en) 2019-12-03 2022-12-29 3M Innovative Properties Company Thiolate salt melt additives
US20220401862A1 (en) 2019-12-03 2022-12-22 3M Innovative Properties Company Aromatic-heterocyclic ring melt additives
KR20220125248A (ko) 2020-01-23 2022-09-14 도레이 카부시키가이샤 일렉트릿 멜트 블로우 부직포, 이것을 사용하여 이루어지는 필터 여과재 및 에어 필터, 그리고 일렉트릿 멜트 블로우 부직포의 제조 방법
WO2021152422A1 (en) 2020-01-27 2021-08-05 3M Innovative Properties Company Substituted thiolate salt melt additives
US11982031B2 (en) 2020-01-27 2024-05-14 3M Innovative Properties Company Substituted thiol melt additives
US20240001375A1 (en) 2020-03-13 2024-01-04 Julian HENLEY Electro-ionic mask devices for improved protection from airborne biopathogens
WO2021184012A1 (en) 2020-03-13 2021-09-16 Henley Julian Electro-ionic devices for improved protection from airborne biopathogens
CN111394887B (zh) * 2020-03-20 2022-04-08 江苏丽洋新材料股份有限公司 一种液体摩擦驻极体过滤材料的制备装置
DE102020107746A1 (de) 2020-03-20 2021-09-23 Solvamed Gmbh Verbesserte Atemschutzmaske
WO2021194189A1 (ko) * 2020-03-26 2021-09-30 도레이첨단소재 주식회사 복합 부직포의 제조방법, 복합 부직포 및 물품
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
RU200604U1 (ru) * 2020-04-17 2020-10-30 Владимир Владимирович Зайцев Фильтрующее средство индивидуальной защиты органов дыхания
CN111501198B (zh) * 2020-04-20 2021-12-10 欣龙控股（集团）股份有限公司 一种水刺静电棉材料及其制备方法和应用
US20230233966A1 (en) 2020-06-30 2023-07-27 Toray Industries, Inc. Electret fiber sheet, laminate sheet, and filter
US11918747B2 (en) * 2020-07-27 2024-03-05 Cullen Thomas Moore Bioburden reduction surgical masks/respirators with use in protection against SARS-CoV-2 infections
US11786853B2 (en) 2020-08-10 2023-10-17 F.N. Smith Corporation Facepiece electrostatic charging devices and methods thereof
CN116033954A (zh) 2020-08-11 2023-04-28 3M创新有限公司 具有苯甲酸盐电荷增强添加剂的驻极体料片
EP4196630A1 (de) 2020-08-11 2023-06-21 3M Innovative Properties Company Elektretnetze mit ladungserhöhenden additiven aus carbonsäure- oder carboxylatsalz
EP4209258A1 (de) 2020-10-07 2023-07-12 Mitsui Chemicals, Inc. Faservliesstoff, filter und verfahren zur herstellung eines faservliesstoffes
EP4237601A1 (de) 2020-11-02 2023-09-06 3M Innovative Properties Company Kern-hülle-fasern, vliesfaserbahn und filterartikel damit
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
CN112870850A (zh) * 2020-12-29 2021-06-01 广东金发科技有限公司 一种抗菌熔喷材料及其制备方法和应用
CN113026207A (zh) * 2021-02-04 2021-06-25 稳健医疗(武汉)有限公司 一种喷熔布喷熔生产方法及其生产系统
WO2023031697A1 (en) 2021-09-01 2023-03-09 3M Innovative Properties Company Anti-virus respirator and mask
CN118076650A (zh) * 2021-10-13 2024-05-24 东洋纺艾睦希株式会社 经低分子量化的聚-4-甲基-1-戊烯的制造方法
CN114504951B (zh) * 2022-01-24 2023-09-22 华南理工大学 一种可循环使用驻极体过滤膜及其制备方法、清洗和电荷再生方法
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
US20240115889A1 (en) 2022-10-07 2024-04-11 3M Innovative Properties Company Disposable, Flat-Fold Respirator Having Increased Stiffness in Selected Areas
US20240123267A1 (en) * 2022-10-16 2024-04-18 Jason Nicholas Rich Fine particle pollution filtering face mask suitable for aerobic exercise

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US31285A (en) * 1861-01-29 Making- finger-guards for harvesters
US30782A (en) * 1860-11-27 John wright
NL271149A (de) * 1960-11-08 1900-01-01
US3493462A (en) * 1962-07-06 1970-02-03 Du Pont Nonpatterned,nonwoven fabric
US3416714A (en) * 1966-07-05 1968-12-17 Phillips Petroleum Co Method of fibrillation
US3562771A (en) * 1967-10-20 1971-02-09 Du Pont Process for preparation of continuous filament nonwoven webs
DE1944548C3 (de) * 1969-09-02 1980-04-03 Laerdal, Asmund S., Stavanger (Norwegen) Zusammenfaltbare Beatmungsmaske und Transporttasche hierfür
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
US4188690A (en) * 1976-02-25 1980-02-19 Mitsubishi Rayon Company, Limited Nonwoven fabric and manufacturing method thereof
CA1073648A (en) * 1976-08-02 1980-03-18 Edward R. Hauser Web of blended microfibers and crimped bulking fibers
US4146663A (en) * 1976-08-23 1979-03-27 Asahi Kasei Kogyo Kabushiki Kaisha Composite fabric combining entangled fabric of microfibers and knitted or woven fabric and process for producing same
NL181632C (nl) * 1976-12-23 1987-10-01 Minnesota Mining & Mfg Electreetfilter en werkwijze voor het vervaardigen daarvan.
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
JPS55138223A (en) 1979-04-12 1980-10-28 Tokyo Shibaura Electric Co Method of manufacturing electret
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
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
DE3381143D1 (de) * 1982-03-31 1990-03-01 Toray Industries Vlies aus ultra feinen verwirrten fasern, und verfahren zur herstellung desselben.
US4548628A (en) * 1982-04-26 1985-10-22 Asahi Kasei Kogyo Kabushiki Kaisha Filter medium and process for preparing same
AU565762B2 (en) * 1983-02-04 1987-09-24 Minnesota Mining And Manufacturing Company Method and apparatus for manufacturing an electret filter medium
US4729371A (en) * 1983-10-11 1988-03-08 Minnesota Mining And Manufacturing Company Respirator comprised of blown bicomponent fibers
US4944854A (en) * 1983-11-08 1990-07-31 Celanese Corporation Electret process and products
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−
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
GB2176404B (en) * 1985-06-13 1988-07-27 Od G Univ Im I I Mechnikova Respirator
US5078132A (en) * 1985-08-28 1992-01-07 Minnesota Mining And Manufacturing Company Bonded adsorbent structures and respirators incorporating same
US4612237A (en) * 1985-12-13 1986-09-16 E. I. Du Pont De Nemours And Company Hydraulically entangled PTFE/glass filter felt
JPS62263361A (ja) * 1986-05-09 1987-11-16 東レ株式会社 不織布の製造方法
DE3719420A1 (de) * 1987-06-11 1988-12-29 Sandler Helmut Helsa Werke Atemschutzmaske
US4775579A (en) * 1987-11-05 1988-10-04 James River Corporation Of Virginia Hydroentangled elastic and nonelastic filaments
DE3839956C2 (de) * 1987-11-28 1998-07-02 Toyo Boseki Elektret-Folie und Verfahren zu ihrer Herstellung
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)
US4886058A (en) * 1988-05-17 1989-12-12 Minnesota Mining And Manufacturing Company Filter element
US4917942A (en) * 1988-12-22 1990-04-17 Minnesota Mining And Manufacturing Company Nonwoven filter material
US5028465A (en) * 1989-03-20 1991-07-02 James River Corporation Hydroentangled composite filter element
CA2027687C (en) * 1989-11-14 2002-12-31 Douglas C. Sundet Filtration media and method of manufacture
CA2037942A1 (en) * 1990-03-12 1991-09-13 Satoshi Matsuura Process for producing an electret, a film electret, and an electret filter
JPH04330907A (ja) * 1991-05-02 1992-11-18 Mitsui Petrochem Ind Ltd エレクトレットフィルターの製造方法
US5227172A (en) * 1991-05-14 1993-07-13 Exxon Chemical Patents Inc. Charged collector apparatus for the production of meltblown electrets
US5207970A (en) * 1991-09-30 1993-05-04 Minnesota Mining And Manufacturing Company Method of forming a web of melt blown layered fibers
JP3070632B2 (ja) * 1991-11-21 2000-07-31 ユニチカ株式会社 柔軟性不織布及びその製造方法
US5244482A (en) * 1992-03-26 1993-09-14 The University Of Tennessee Research Corporation Post-treatment of nonwoven webs
US5280406A (en) * 1992-06-18 1994-01-18 International Business Machines Corporation Jet deposition of electrical charge on a dielectric surface
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
ES2336163T3 (es) * 1993-08-17 2010-04-08 Minnesota Mining And Manufacturing Company Metodo para cargar medios filtrantes de electretos.

Also Published As

Publication number Publication date
CN1129963A (zh) 1996-08-28
EP0845554A3 (de) 2000-09-27
ES2336163T3 (es) 2010-04-08
WO1995005501A3 (en) 1995-03-23
AU680561B2 (en) 1997-07-31
DE69435251D1 (de) 2009-12-31
CA2168126C (en) 2005-07-12
ES2128590T3 (es) 1999-05-16
JP3476084B2 (ja) 2003-12-10
PL312993A1 (en) 1996-05-27
WO1995005501A2 (en) 1995-02-23
JP2004074149A (ja) 2004-03-11
EP0845554A2 (de) 1998-06-03
US6119691A (en) 2000-09-19
DE69417041D1 (de) 1999-04-15
US5496507A (en) 1996-03-05
CA2168126A1 (en) 1995-02-23
CN1052042C (zh) 2000-05-03
KR100336012B1 (ko) 2002-10-11
JP3735687B2 (ja) 2006-01-18
US6783574B1 (en) 2004-08-31
AU7953294A (en) 1995-03-14
EP0845554B1 (de) 2009-11-18
PL173854B1 (pl) 1998-05-29
EP0714463A1 (de) 1996-06-05
BR9407259A (pt) 1996-09-24
RU2130521C1 (ru) 1999-05-20
EP0714463B1 (de) 1999-03-10
JPH09501604A (ja) 1997-02-18

Similar Documents

Publication Publication Date Title
DE69417041D1 (de) Verfahren zur aufladung von elektretfiltermedien
DE69526085D1 (de) Verfahren zur vermeidung von staub
DE69334108D1 (de) Elektrisches Verfahren zur Bestimmung von Molekülen
DE69513987T2 (de) Verfahren zur transesterifikation
DE59401597D1 (de) Verfahren zur Überwachung von beweglichen Elementen
DE69516095D1 (de) Verfahren zur Filterung von Fahrzeugverzögerungsdaten
DE69322498D1 (de) Verfahren zur identifizierung von normalen biomedizinischen proben
DE69534886D1 (de) Verfahren zur Isolierung von Zellkomponenten
DE69432859D1 (de) Verfahren zur reinigung von kollagenase
DE59305971D1 (de) Verfahren zur entölung von rohlecithin
DE69316385D1 (de) Verfahren zur reinigung von acetanhydrid
DE69319711D1 (de) Verfahren zur entfernung von fluorwasserstoff
DE69309676D1 (de) Verfahren zur umwandlung von n2o
DE69325382D1 (de) Verfahren zur oberflächenmodifikation
DE69837730D1 (de) Verfahren zur Entfernung von einem Oxyd-Film und Einrichtung dafür
DE69529343D1 (de) Verfahren zur isolierung von mesophasepech
DE59706891D1 (de) Verfahren zur abtrennung von acrylsäure
DE69531777D1 (de) Verfahren zur darstellung von lithiumalkylamiden
DE59609489D1 (de) Verfahren zur entfernung von zinn
DE69526841T2 (de) Verfahren zur Wiedergabe
DE59301648D1 (de) Verfahren zur entwässerung von feinteiligen feststoffsuspensionen
DE912476T1 (de) Verfahren zur abtrennung von difluormethan
DE69418320D1 (de) Verfahren zur rückgewinnung von fluorwasserstoff
DE69525214T2 (de) Verfahren zur Wiederherstellung eines Aufladungselements
DE69423547D1 (de) Verfahren zur Filtrierung von thixotropen Flüssigkeiten

Legal Events

Date Code Title Description
8364 No opposition during term of opposition