AU700461B2 - Fibrous webs having enhanced electret properties - Google Patents

Fibrous webs having enhanced electret properties Download PDF

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Publication number
AU700461B2
AU700461B2 AU66481/96A AU6648196A AU700461B2 AU 700461 B2 AU700461 B2 AU 700461B2 AU 66481/96 A AU66481/96 A AU 66481/96A AU 6648196 A AU6648196 A AU 6648196A AU 700461 B2 AU700461 B2 AU 700461B2
Authority
AU
Australia
Prior art keywords
web
thermoplastic resin
pct
compound
group
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
Application number
AU66481/96A
Other languages
English (en)
Other versions
AU6648196A (en
Inventor
Seyed A. Angadjivand
Marvin E. Jones
Alan D. Rousseau
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 AU6648196A publication Critical patent/AU6648196A/en
Application granted granted Critical
Publication of AU700461B2 publication Critical patent/AU700461B2/en
Anticipated expiration legal-status Critical
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • 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. by ultrasonic waves, corona discharge, irradiation, electric currents or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
    • 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
    • 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
    • B01D2239/0613—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
    • B01D2239/0636—Two or more types of fibres present in the filter 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
    • B01D2239/0604—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
    • 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
    • B01D2239/10—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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/16—Controlling the light source by timing means
    • 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
    • Y10S55/39—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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2418—Coating or impregnation increases electrical conductivity or anti-static quality

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Electrostatic Separation (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
AU66481/96A 1995-08-14 1996-07-18 Fibrous webs having enhanced electret properties Expired AU700461B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/514,866 US5908598A (en) 1995-08-14 1995-08-14 Fibrous webs having enhanced electret properties
US08/514866 1995-08-14
PCT/US1996/011878 WO1997007272A1 (en) 1995-08-14 1996-07-18 Fibrous webs having enhanced electret properties

Publications (2)

Publication Number Publication Date
AU6648196A AU6648196A (en) 1997-03-12
AU700461B2 true AU700461B2 (en) 1999-01-07

Family

ID=24048997

Family Applications (1)

Application Number Title Priority Date Filing Date
AU66481/96A Expired AU700461B2 (en) 1995-08-14 1996-07-18 Fibrous webs having enhanced electret properties

Country Status (12)

Country Link
US (6) US5908598A (https=)
EP (1) EP0845058B1 (https=)
JP (1) JP4069195B2 (https=)
KR (1) KR100405072B1 (https=)
CN (1) CN1188559C (https=)
AU (1) AU700461B2 (https=)
BR (1) BR9610200A (https=)
CA (1) CA2227422A1 (https=)
DE (1) DE69627670T2 (https=)
ES (1) ES2195001T3 (https=)
MX (1) MX9800828A (https=)
WO (1) WO1997007272A1 (https=)

Families Citing this family (240)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6162535A (en) 1996-05-24 2000-12-19 Kimberly-Clark Worldwide, Inc. Ferroelectric fibers and applications therefor
US6041782A (en) * 1997-06-24 2000-03-28 3M Innovative Properties Company Respiratory mask having comfortable inner cover web
US6238466B1 (en) * 1997-10-01 2001-05-29 3M Innovative Properties Company Electret articles and filters with increased oily mist resistance
US6213122B1 (en) * 1997-10-01 2001-04-10 3M Innovative Properties Company Electret fibers and filter webs having a low level of extractable hydrocarbons
US6068799A (en) * 1997-10-01 2000-05-30 3M Innovative Properties Company Method of making electret articles and filters with increased oily mist resistance
AU755573B2 (en) * 1997-10-01 2002-12-19 Minnesota Mining And Manufacturing Company Electret fibers and filter webs having a low level of extractable hydrocarbons
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
US6759356B1 (en) * 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
WO2000000267A2 (en) * 1998-06-30 2000-01-06 Kimberly-Clark Worldwide, Inc. Stable polymeric electret materials
US6432175B1 (en) 1998-07-02 2002-08-13 3M Innovative Properties Company Fluorinated electret
US6123752A (en) * 1998-09-03 2000-09-26 3M Innovative Properties Company High efficiency synthetic filter medium
US6573205B1 (en) 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US6110588A (en) 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6630231B2 (en) 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
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
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
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
US6729332B1 (en) 1999-10-22 2004-05-04 3M Innovative Properties Company Retention assembly with compression element and method of use
US6444312B1 (en) 1999-12-08 2002-09-03 Fiber Innovation Technology, Inc. Splittable multicomponent fibers containing a polyacrylonitrile polymer component
US6391948B1 (en) 1999-12-14 2002-05-21 3M Innovative Properties Company Triazine compounds and use thereof
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
US6743464B1 (en) * 2000-04-13 2004-06-01 3M Innovative Properties Company Method of making electrets through vapor condensation
US6419871B1 (en) * 2000-05-25 2002-07-16 Transweb, Llc. Plasma treatment of filter media
US6468451B1 (en) 2000-06-23 2002-10-22 3M Innovative Properties Company Method of making a fibrillated article
US6740142B2 (en) 2000-09-05 2004-05-25 Donaldson Company, Inc. Industrial bag house elements
US7270693B2 (en) * 2000-09-05 2007-09-18 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
CN101117736A (zh) * 2000-09-05 2008-02-06 唐纳森公司 聚合物,聚合物微米纤维,聚合物纳米纤维和包括过滤器结构的用途
US20020092423A1 (en) * 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
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
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
US6743273B2 (en) * 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
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
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
JP2002161471A (ja) * 2000-11-28 2002-06-04 Toray Ind Inc エレクトレット加工品の製造方法
JP4670144B2 (ja) * 2000-12-04 2011-04-13 東レ株式会社 エレクトレット加工品の製造方法
JP4670143B2 (ja) * 2000-12-04 2011-04-13 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
JP4747255B2 (ja) * 2000-12-27 2011-08-17 Ｊｎｃ株式会社 帯電性を有するトウおよびそれを用いた積層体
US6802315B2 (en) * 2001-03-21 2004-10-12 Hollingsorth & Vose Company Vapor deposition treated electret filter media
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
US6969484B2 (en) * 2001-06-18 2005-11-29 Toray Industries, Inc. Manufacturing method and device for electret processed product
US6514324B1 (en) * 2001-08-10 2003-02-04 Rick L. Chapman High efficiency active electrostatic air filter and method of manufacture
US20030054716A1 (en) * 2001-09-07 2003-03-20 3M Innovative Properties Company Method of making an electret
US7887889B2 (en) * 2001-12-14 2011-02-15 3M Innovative Properties Company Plasma fluorination treatment of porous materials
US6692823B2 (en) 2001-12-19 2004-02-17 3M Innovative Properties Company Microfibrillated articles comprising hydrophillic component
WO2003060216A1 (en) * 2002-01-11 2003-07-24 Japan Vilene Company, Ltd. Process for producing electret and production apparatus
US6753080B1 (en) 2002-01-29 2004-06-22 3M Innovative Properties Company Receptor medium having a microfibrillated surface
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
EP1540678A2 (en) * 2002-08-30 2005-06-15 3M Innovative Properties Company Method of making writable erasable articles and articles therefrom
US6805048B2 (en) 2002-08-30 2004-10-19 3M Innovative Properties Company Method of marking a substrate using an electret stencil
KR101160691B1 (ko) * 2002-09-16 2012-06-28 트리오신 홀딩 아이엔씨 활성화제가 혼입된 정전기적으로 하전된 필터 매질
US20040121688A1 (en) * 2002-12-23 2004-06-24 Kimberly-Clark Worldwide, Inc. Flexible activated carbon substrates
US20040121681A1 (en) * 2002-12-23 2004-06-24 Kimberly-Clark Worldwide, Inc. Absorbent articles containing an activated carbon substrate
US20040122387A1 (en) * 2002-12-23 2004-06-24 Kimberly-Clark Worldwide, Inc. Absorbent articles that include a stretchable substrate having odor control properties
US20040194784A1 (en) * 2003-04-01 2004-10-07 Archie Bertrand Respiratory particulate filter
US20050000642A1 (en) * 2003-07-03 2005-01-06 3M Innovative Properties Company Cling articles
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
EP1888201A2 (en) 2005-03-07 2008-02-20 3M Innovative Properties Company Vehicle passenger compartment air filter devices
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
US20070048356A1 (en) * 2005-08-31 2007-03-01 Schorr Phillip A Antimicrobial treatment of nonwoven materials for infection control
US20070048344A1 (en) * 2005-08-31 2007-03-01 Ali Yahiaoui Antimicrobial composition
US20070048358A1 (en) * 2005-08-31 2007-03-01 Schorr Phillip A Antimicrobial substrates
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
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
WO2007080801A1 (ja) * 2006-01-11 2007-07-19 Idemitsu Kosan Co., Ltd. 新規イミド誘導体、有機エレクトロルミネッセンス素子用材料及びそれを用いた有機エレクトロルミネッセンス素子
US7390351B2 (en) * 2006-02-09 2008-06-24 3M Innovative Properties Company Electrets and compounds useful in electrets
KR101297937B1 (ko) 2006-07-14 2013-08-19 킴벌리-클라크 월드와이드, 인크. 부직 웹에 사용하기 위한 생분해성 지방족 폴리에스테르
US7807591B2 (en) * 2006-07-31 2010-10-05 3M Innovative Properties Company Fibrous web comprising microfibers dispersed among bonded meltspun fibers
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
US7905973B2 (en) * 2006-07-31 2011-03-15 3M Innovative Properties Company Molded monocomponent monolayer respirator
US7902096B2 (en) * 2006-07-31 2011-03-08 3M Innovative Properties Company Monocomponent monolayer meltblown web and meltblowing apparatus
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
US8029723B2 (en) * 2006-07-31 2011-10-04 3M Innovative Properties Company Method for making shaped filtration articles
WO2008072554A1 (ja) * 2006-12-14 2008-06-19 Toray Industries, Inc. エレクトレット繊維シート
JP2008221074A (ja) * 2007-03-09 2008-09-25 Toyobo Co Ltd エレクトレット濾材およびその製造方法
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
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
US20090000624A1 (en) * 2007-06-28 2009-01-01 3M Innovative Properties Company Respirator having a harness and methods of making and fitting the same
US8070862B2 (en) * 2007-09-04 2011-12-06 3M Innovative Properties Company Dust collection device for sanding tool
CN101801465B (zh) 2007-09-20 2012-07-11 3M创新有限公司 具有可伸展的面罩主体的过滤式面具呼吸器
BRPI0819048C8 (pt) * 2007-12-06 2018-08-07 3M Innovative Properties Co "meio filtrante de eletreto e método de preparo de uma manta de eletreto"
EP2247360B1 (en) * 2007-12-27 2020-04-15 3M Innovative Properties Company Dust collection device for sanding tool
WO2009108397A1 (en) * 2008-01-07 2009-09-03 The Johns Hopkins University Devices having high dielectric-constant, ionically-polarizable materials
US20090249957A1 (en) * 2008-04-04 2009-10-08 Lackey Sr Robert W Two Stage Air Filter
EP2294257B1 (en) * 2008-06-02 2014-01-22 3M Innovative Properties Company Electret webs with charge-enhancing additives
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
BRPI0909855A2 (pt) * 2008-06-02 2015-10-06 3M Innovative Properties Co "aditivos acentuadores de carga para eletretos"
WO2010002773A2 (en) * 2008-06-30 2010-01-07 3M Innovative Properties Company Method for in situ formation of metal nanoclusters within a porous substrate field
US8269215B2 (en) * 2008-07-21 2012-09-18 The Johns Hopkins University Pyromellitic diimide organic semiconductors and devices
EP2159222A1 (de) 2008-08-27 2010-03-03 Bayer MaterialScience AG Additive zur Verbesserung des Elektretverhaltens von Polycarbonaten
DE102008047552A1 (de) 2008-09-16 2010-04-08 Carl Freudenberg Kg Elektretfilterelement und Verfahren zu dessen Herstellung
WO2010032759A1 (ja) * 2008-09-19 2010-03-25 旭硝子株式会社 エレクトレット及び静電誘導型変換素子
RU2015154995A (ru) * 2008-10-31 2019-01-16 Сайтек Текнолоджи Корп. Способ улучшения электростатической сепарации при обогащении руд
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
KR20110127696A (ko) 2009-02-20 2011-11-25 쓰리엠 이노베이티브 프로퍼티즈 컴파니 항미생물 일렉트릿 웨브
WO2010114742A2 (en) * 2009-04-03 2010-10-07 3M Innovative Properties Company Electret webs with charge-enhancing additives
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
ITPD20090117A1 (it) * 2009-05-04 2010-11-05 Euroflex Srl Spruzzatore a mano per liquidi detergenti
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
KR20110031144A (ko) 2009-09-18 2011-03-24 쓰리엠 이노베이티브 프로퍼티즈 컴파니 파지 특징부 표시부를 갖는 안면부 여과식 호흡기
US8640704B2 (en) 2009-09-18 2014-02-04 3M Innovative Properties Company Flat-fold filtering face-piece respirator having structural weld pattern
TW201121786A (en) * 2009-10-22 2011-07-01 Chi Lin Technology Co Ltd Hybrid electret
US8528560B2 (en) 2009-10-23 2013-09-10 3M Innovative Properties Company Filtering face-piece respirator having parallel line weld pattern in mask body
USD676527S1 (en) 2009-12-16 2013-02-19 3M Innovative Properties Company Unidirectional valve
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
US8967147B2 (en) 2009-12-30 2015-03-03 3M Innovative Properties Company Filtering face-piece respirator having an auxetic mesh in the mask body
CN105709501B (zh) 2010-02-12 2019-01-08 唐纳森公司 液体过滤介质
US9126135B2 (en) 2010-06-22 2015-09-08 Clarcor Air Filtration Products, Inc. V-bank air filtration system such as for animal confinement
RU2543889C2 (ru) 2010-06-22 2015-03-10 Кларкор Эр Филтрейшн Продактс, Инк. Система фильтрации воздуха в сооружениях для стойлового содержания животных с помощью панельного воздушного фильтра с зигзагообразным расположением панелей
US20120017911A1 (en) 2010-07-26 2012-01-26 3M Innovative Properties Company Filtering face-piece respirator having foam shaping layer
US8936740B2 (en) 2010-08-13 2015-01-20 Kimberly-Clark Worldwide, Inc. Modified polylactic acid fibers
US10753023B2 (en) 2010-08-13 2020-08-25 Kimberly-Clark Worldwide, Inc. Toughened polylactic acid fibers
US10036107B2 (en) 2010-08-23 2018-07-31 Fiberweb Holdings Limited Nonwoven web and fibers with electret properties, manufacturing processes thereof and their use
US20120125341A1 (en) 2010-11-19 2012-05-24 3M Innovative Properties Company Filtering face-piece respirator having an overmolded face seal
US9687766B2 (en) 2011-05-27 2017-06-27 Clarcor Air Filtration Products, Inc. Collapsible and/or assembled filter housing and filter used therewith
US9185877B2 (en) 2011-05-27 2015-11-17 Clarcor Air Filtration Products, Inc. Collapsible and/or assembled filter housing and filter used therewith
US9802187B2 (en) 2011-06-30 2017-10-31 3M Innovative Properties Company Non-woven electret fibrous webs and methods of making same
KR102280136B1 (ko) 2011-08-12 2021-07-22 도널드선 컴파니 인코포레이티드 멜트-블로운 섬유를 포함하는 액체 여과 매질
US8975305B2 (en) 2012-02-10 2015-03-10 Kimberly-Clark Worldwide, Inc. Rigid renewable polyester compositions having a high impact strength and tensile elongation
US9034068B2 (en) 2012-06-05 2015-05-19 Clarcor Air Filtration Products, Inc. Box filter with orientation device
CN103046231A (zh) * 2012-06-22 2013-04-17 浙江朝晖过滤技术股份有限公司 熔纺非织造材料及其生产方法及其应用
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
US9247788B2 (en) 2013-02-01 2016-02-02 3M Innovative Properties Company Personal protective equipment strap retaining devices
US9259058B2 (en) 2013-02-01 2016-02-16 3M Innovative Properties Company Personal protective equipment strap retaining devices
PL2986354T3 (pl) * 2013-04-19 2017-10-31 3M Innovative Properties Co Wstęgi elektretowe z dodatkami zwiększającymi ładunek
JP2014233687A (ja) * 2013-06-04 2014-12-15 東洋紡株式会社 エレクトレットフィルター
EP3071164B1 (en) 2013-11-20 2021-09-29 Kimberly-Clark Worldwide, Inc. Absorbent article containing a soft and durable backsheet
EP3071740B1 (en) 2013-11-20 2021-06-02 Kimberly-Clark Worldwide, Inc. Soft and durable nonwoven composite
JP6542787B2 (ja) 2013-11-26 2019-07-10 スリーエム イノベイティブ プロパティズ カンパニー 寸法安定性メルトブローン不織布繊維構造とその製造方法及び製造装置
KR20170034447A (ko) 2013-12-17 2017-03-28 쓰리엠 이노베이티브 프로퍼티즈 컴파니 공기질 표시기
KR20160127090A (ko) 2014-02-27 2016-11-02 쓰리엠 이노베이티브 프로퍼티즈 캄파니 투각 구조를 갖는 탄성 스트랩을 구비한 호흡기
CA2940956A1 (en) 2014-02-28 2015-09-03 3M Innovative Properties Company Filtration medium including polymeric netting of ribbons and strands
US10040621B2 (en) 2014-03-20 2018-08-07 3M Innovative Properties Company Filtering face-piece respirator dispenser
KR20170021853A (ko) 2014-06-23 2017-02-28 쓰리엠 이노베이티브 프로퍼티즈 캄파니 전하 증대 첨가제를 갖는 일렉트릿 웨브
EP3182850B1 (en) 2014-08-18 2018-09-26 3M Innovative Properties Company Respirator including polymeric netting and method of forming same
US10273612B2 (en) 2014-08-26 2019-04-30 3M Innovative Properties Company Spunbonded web comprising polylactic acid fibers
DE112015004103T5 (de) 2014-09-08 2017-06-14 Clarcor Air Filtration Products, Inc. Filter mit hoher Staubkapazität
US20170252590A1 (en) 2014-10-31 2017-09-07 3M Innovative Properties Company Respirator Having Corrugated Filtering Structure
CN107073162A (zh) 2014-11-18 2017-08-18 金伯利-克拉克环球有限公司 柔软且耐用的非织造网
ES2950903T3 (es) * 2015-03-16 2023-10-16 Toray Industries Lámina de fibra de electreto
JP2016169459A (ja) * 2015-03-16 2016-09-23 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
US11053373B2 (en) 2015-07-07 2021-07-06 3M Innovative Properties Company Polymeric matrices with ionic additives
EP3319947B1 (en) 2015-07-07 2022-05-04 3M Innovative Properties Company Substituted benzotriazole phenols
WO2017007677A1 (en) 2015-07-07 2017-01-12 3M Innovative Properties Company Substituted benzotriazole phenolate salts and antioxidant compositions formed therefrom
MX2018000117A (es) 2015-07-07 2018-03-22 3M Innovative Properties Co Tramas de electreto con aditivos mejoradores de la carga.
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
US10286349B2 (en) 2015-11-10 2019-05-14 3M Innovative Properties Company Air filter use indicators
WO2017083289A1 (en) 2015-11-11 2017-05-18 3M Innovative Properties Company Shape retaining flat-fold respirator
US10512861B2 (en) * 2015-12-22 2019-12-24 Toray Industries, Inc. Electret fiber sheet
US12420221B2 (en) 2016-07-01 2025-09-23 Hollingsworth & Vose Company Multi-layered electret-containing filtration media
EP3512608B1 (en) 2016-09-16 2023-12-06 3M Innovative Properties Company Exhalation valve and respirator including same
KR20190069565A (ko) 2016-10-28 2019-06-19 쓰리엠 이노베이티브 프로퍼티즈 캄파니 보강 요소를 포함하는 호흡기
WO2018123418A1 (ja) * 2016-12-26 2018-07-05 パナソニックＩｐマネジメント株式会社 エアフィルタ濾材
EP3565653B1 (en) 2017-01-05 2020-10-28 3M Innovative Properties Company Electret webs with charge-enhancing additives
US11077394B2 (en) 2017-02-21 2021-08-03 Hollingsworth & Vose Company Electret-containing filter media
US10814261B2 (en) 2017-02-21 2020-10-27 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
CN107090661A (zh) * 2017-05-22 2017-08-25 海安国洋机械科技有限公司 自喷式金属纤维牵切铺毡机
CN110709389B (zh) * 2017-06-13 2022-11-22 3M创新有限公司 金属添加剂化合物、其使用方法、以及包含该化合物的制品和组合物
KR102492536B1 (ko) 2017-06-29 2023-01-27 쓰리엠 이노베이티브 프로퍼티즈 캄파니 부직 물품 및 이의 제조 방법
EP3646069A1 (en) 2017-06-29 2020-05-06 3M Innovative Properties Company Article and methods of making the same
CN110869110B (zh) 2017-07-14 2022-11-18 3M创新有限公司 用于输送多个液体流的适配器
CN108251906A (zh) * 2017-10-20 2018-07-06 深圳市美沃布朗科技有限公司 一种高效低阻防霾透气窗纱及其制备方法
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
US12150502B2 (en) 2018-01-03 2024-11-26 3M Innovative Properties Company Respirator including transversely-extending pleat and method of forming same
CN112218981A (zh) * 2018-05-17 2021-01-12 田纳西大学研究基金会 使无纺织物由液体饱和的方法及其驻极体的制造方法
EP3962626A1 (en) 2019-05-01 2022-03-09 Ascend Performance Materials Operations LLC Filter media comprising polyamide nanofiber layer
WO2020261035A1 (en) 2019-06-26 2020-12-30 3M Innovative Properties Company Method of making a nonwoven fiber web, nonwoven fiber web, and multi-component fiber
KR20220024679A (ko) 2019-06-28 2022-03-03 쓰리엠 이노베이티브 프로퍼티즈 캄파니 코어-시스 섬유, 부직 섬유질 웨브, 및 이를 포함하는 호흡기
CN114173904A (zh) * 2019-06-28 2022-03-11 3M创新有限公司 过滤器组件、预过滤器组件和包括它们的呼吸器
EP4045166B1 (en) 2019-10-16 2023-11-29 3M Innovative Properties Company Substituted benzimidazole melt additives
US20220380574A1 (en) 2019-10-16 2022-12-01 3M Innovative Properties Company Dual-function melt additives
CN110812947B (zh) * 2019-10-18 2022-02-08 东莞市亿茂滤材有限公司 具有空腔结构的驻极体非织造过滤材料及其制备方法
CN110833932A (zh) * 2019-11-06 2020-02-25 浙江金海环境技术股份有限公司 驻极体材料的制备方法、制备装置和驻极体材料
CN115038829B (zh) 2019-12-03 2023-07-28 3M创新有限公司 芳族杂环熔体添加剂
CN114765996B (zh) 2019-12-03 2023-06-02 3M创新有限公司 硫醇盐熔体添加剂
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
EP4118385A4 (en) 2020-03-13 2024-04-24 Henley, Julian ELECTRO-IONIC DEVICES FOR IMPROVED PROTECTION AGAINST AIR-SUSPENDED BIOPATHOGENS
US12017232B2 (en) 2020-03-13 2024-06-25 Julian HENLEY Electro-ionic mask devices for improved protection from airborne biopathogens
DE102020107746A1 (de) 2020-03-20 2021-09-23 Solvamed Gmbh Verbesserte Atemschutzmaske
KR102228591B1 (ko) 2020-03-26 2021-03-16 도레이첨단소재 주식회사 복합 부직포 및 이를 포함하는 물품
JP7523572B2 (ja) 2020-04-09 2024-07-26 トーレ・アドバンスド・マテリアルズ・コリア・インコーポレーテッド 複合不織布、及びそれを含む物品
DE202020103073U1 (de) 2020-05-28 2021-09-01 Eurofilters Holding N.V. Atemschutzmaske
EP3915650A1 (de) 2020-05-28 2021-12-01 Eurofilters Holding N.V. Atemschutzmaske
DE202020103075U1 (de) 2020-05-28 2021-09-01 Eurofilters Holding N.V. Atemschutzmaske
DE202020103077U1 (de) 2020-05-28 2021-09-01 Eurofilters Holding N.V. Atemschutzmaske
EP3915648A1 (de) 2020-05-28 2021-12-01 Eurofilters Holding N.V. Atemschutzmaske
DE202020103076U1 (de) 2020-05-28 2021-09-01 Eurofilters Holding N.V. Atemschutzmaske
EP3915647A1 (de) 2020-05-28 2021-12-01 Eurofilters Holding N.V. Atemschutzmaske
EP3915649A1 (de) 2020-05-28 2021-12-01 Eurofilters Holding N.V. Atemschutzmaske
WO2022009028A1 (en) 2020-07-08 2022-01-13 3M Innovative Properties Company Pleated filtration assembly comprising spunbonded prefilter
WO2022034444A1 (en) 2020-08-11 2022-02-17 3M Innovative Properties Company Electret webs with benzoate salt charge-enhancing additives
WO2022034437A1 (en) 2020-08-11 2022-02-17 3M Innovative Properties Company Electret webs with carboxylic acid or carboxylate salt charge-enhancing additives
EP3954438A1 (de) 2020-08-12 2022-02-16 Eurofilters Holding N.V. Verfahren zur herstellung einer atemschutzmaske
GB2601467A (en) * 2020-08-21 2022-06-08 Alchemie Tech Limited Improvements in or relating to filters
US20230390678A1 (en) 2020-11-02 2023-12-07 3M Innovative Properties Company Core-sheath fibers, nonwoven fibrous web, and filtering articles including the same
AU2021378060B2 (en) 2020-11-10 2025-05-22 Neenah Gessner Gmbh Filter medium comprising a nonwoven electret
US20240009606A1 (en) 2020-12-18 2024-01-11 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
CN116785834A (zh) * 2022-03-18 2023-09-22 大金工业株式会社 驻极体材料、过滤器以及母料
WO2024039921A1 (en) 2022-08-17 2024-02-22 Integrated Pharma Services, Llc Pleating spacers and their 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
EP4637956A1 (en) 2022-12-21 2025-10-29 3M Innovative Properties Company Shirred filter media and methods of making and using the same
WO2024214065A1 (en) 2023-04-13 2024-10-17 3M Innovative Properties Company Filter media for filtration devices and methods of making and using the same
JP2026512104A (ja) 2023-04-13 2026-04-14 スリーエム イノベイティブ プロパティズ カンパニー 呼吸保護デバイスおよびその製造方法
WO2025125970A1 (en) 2023-12-15 2025-06-19 3M Innovative Properties Company Respiratory protection devices and methods of manufacturing the same
WO2025125969A1 (en) 2023-12-15 2025-06-19 3M Innovative Properties Company Respiratory protection devices and methods of manufacturing the same
WO2025133782A1 (en) 2023-12-18 2025-06-26 3M Innovative Properties Company Respiratory protection devices and methods of manufacturing the same
WO2025202974A1 (en) 2024-03-29 2025-10-02 3M Innovative Properties Company Respirators, respirator materials and methods of manufacturing the same
US20260061352A1 (en) 2024-08-28 2026-03-05 Delstar Technologies, Inc. Cleanable filter medium
EP4721833A1 (en) 2024-10-04 2026-04-08 Neenah Gessner GmbH A non-woven filter media with a meltblown and nanofibers

Family Cites Families (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US35062A (en) * 1862-04-22 Stuart perry
US32171A (en) * 1861-04-30 Coiffibinatioit-lbck
US30782A (en) * 1860-11-27 John wright
US3094547A (en) * 1961-02-06 1963-06-18 Minnesota Mining & Mfg Perfluoroalkylsulfonamidoalkyl esters of phosphorus acids
US3493462A (en) * 1962-07-06 1970-02-03 Du Pont Nonpatterned,nonwoven fabric
US3485705A (en) * 1966-11-08 1969-12-23 Johnson & Johnson Nonwoven fabric and method of manufacturing the same
CH481963A (de) * 1967-06-08 1969-11-30 Ciba Geigy Neue härtbare Mischungen aus Diepoxydverbindungen, disekundären Aminen sowie mindestens 3 Aminwasserstoffatome enthaltenden Polyaminen
US3485706A (en) * 1968-01-18 1969-12-23 Du Pont Textile-like patterned nonwoven fabrics and their production
US3817958A (en) * 1972-11-22 1974-06-18 Du Pont Oil and water repellent
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
US4086499A (en) * 1976-11-26 1978-04-25 Uniroyal Ltd. Stable electrets of styrene-type polymers
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
CA1107950A (en) * 1978-08-10 1981-09-01 Anupama Mishra Electret made of branched alpha-olefin polymer
JPS60947B2 (ja) * 1978-10-16 1985-01-11 三井化学株式会社 エレクトレツト
US4297492A (en) * 1979-03-23 1981-10-27 Ciba-Geigy Corporation Phenolic-1,3,5-triazines
US4722806A (en) * 1982-02-19 1988-02-02 The B. F. Goodrich Company Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and UV light stabilized compositions
US4429001A (en) * 1982-03-04 1984-01-31 Minnesota Mining And Manufacturing Company Sheet product containing sorbent particulate material
US4492791A (en) * 1982-05-04 1985-01-08 Ciba-Geigy Corporation Process for the preparation of polyaminotriazines
US4429791A (en) * 1982-06-01 1984-02-07 Hamilton Glass Products Incorporated Mirror package and method of forming
AU565762B2 (en) * 1983-02-04 1987-09-24 Minnesota Mining And Manufacturing Company Method and apparatus for manufacturing an electret filter medium
US4701237A (en) * 1983-10-17 1987-10-20 Kimberly-Clark Corporation Web with enhanced fluid transfer properties and method of making same
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
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
US5099026A (en) * 1986-09-12 1992-03-24 Crater Davis H Fluorochemical oxazolidinones
DE3839956C2 (de) * 1987-11-28 1998-07-02 Toyo Boseki Elektret-Folie und Verfahren zu ihrer Herstellung
JP2672329B2 (ja) * 1988-05-13 1997-11-05 東レ株式会社 エレクトレット材料
US4886058A (en) * 1988-05-17 1989-12-12 Minnesota Mining And Manufacturing Company Filter element
CA2037942A1 (en) * 1990-03-12 1991-09-13 Satoshi Matsuura Process for producing an electret, a film electret, and an electret filter
DE4008080A1 (de) * 1990-03-14 1991-09-19 Standard Elektrik Lorenz Ag Atm-vermittlungsstelle
US5145727A (en) * 1990-11-26 1992-09-08 Kimberly-Clark Corporation Multilayer nonwoven composite structure
JPH05214A (ja) * 1990-11-30 1993-01-08 Mitsui Petrochem Ind Ltd エレクトレツトフイルター
JP3193408B2 (ja) * 1991-08-13 2001-07-30 興研株式会社 エア・フィルタおよびその製造方法
US5260360A (en) * 1991-10-18 1993-11-09 Minnesota Mining And Manufacturing Company Oil, water and sweat repellent microporous membrane materials
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
RU2130521C1 (ru) * 1993-08-17 1999-05-20 Миннесота Майнинг Энд Мэнюфекчуринг Компани Способ электризации нетканого полотна, электретная фильтрующая среда, упругая фильтрующая маска и респираторная маска в сборе
JP2765690B2 (ja) 1993-12-27 1998-06-18 花王株式会社 清掃用シート
US5478377A (en) * 1994-07-22 1995-12-26 The United States Of America As Represented By The Secretary Of The Army Filter for a respiratory device
DE9414040U1 (de) * 1994-08-30 1995-01-19 Hoechst Ag, 65929 Frankfurt Vliese aus Elektretfasermischungen mit verbesserter Ladungsstabilität
US5645627A (en) * 1995-02-28 1997-07-08 Hollingsworth & Vose Company Charge stabilized electret filter media
US5620785A (en) * 1995-06-07 1997-04-15 Fiberweb North America, Inc. Meltblown barrier webs and processes of making same
US5610455A (en) * 1995-06-29 1997-03-11 Minnesota Mining And Manufacturing Company Electret containing syndiotactic vinyl aromatic polymer
US5709735A (en) * 1995-10-20 1998-01-20 Kimberly-Clark Worldwide, Inc. High stiffness nonwoven filter medium

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BR9610200A (pt) 1998-08-04
CA2227422A1 (en) 1997-02-27
JP4069195B2 (ja) 2008-04-02
US6002017A (en) 1999-12-14
US5908598A (en) 1999-06-01
US5919847A (en) 1999-07-06
DE69627670D1 (de) 2003-05-28
MX9800828A (es) 1998-04-30
AU6648196A (en) 1997-03-12
KR100405072B1 (ko) 2004-03-24
EP0845058A1 (en) 1998-06-03
DE69627670T2 (de) 2004-04-08
ES2195001T3 (es) 2003-12-01
EP0845058B1 (en) 2003-04-23
US5968635A (en) 1999-10-19
KR19990036362A (ko) 1999-05-25
JPH11510862A (ja) 1999-09-21
WO1997007272A1 (en) 1997-02-27
CN1188559C (zh) 2005-02-09
CN1192790A (zh) 1998-09-09
US6268495B1 (en) 2001-07-31
US5976208A (en) 1999-11-02

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