[go: up one dir, main page]

BR9911728A - Eletreto, processo de produção de um eletreto, filtro, e, respirador - Google Patents

Eletreto, processo de produção de um eletreto, filtro, e, respirador

Info

Publication number
BR9911728A
BR9911728A BR9911728-2A BR9911728A BR9911728A BR 9911728 A BR9911728 A BR 9911728A BR 9911728 A BR9911728 A BR 9911728A BR 9911728 A BR9911728 A BR 9911728A
Authority
BR
Brazil
Prior art keywords
electret
respirator
filter
production process
fluorination
Prior art date
Application number
BR9911728-2A
Other languages
English (en)
Other versions
BR9911728B1 (pt
Inventor
Marvine E Jones
Christopher S Lyons
David B Redmond
Jeffrey L Solomon
Seyed A Angadjivand
Original Assignee
3M Innovative Properties 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=22327974&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9911728(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by 3M Innovative Properties Co filed Critical 3M Innovative Properties Co
Publication of BR9911728A publication Critical patent/BR9911728A/pt
Publication of BR9911728B1 publication Critical patent/BR9911728B1/pt

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00—Filters for breathing-protection purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/28—Plant or installations without electricity supply, e.g. using electrets
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/18—Introducing halogen atoms or halogen-containing groups
    • C08F8/20—Halogenation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/126—Halogenation
    • 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
    • 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
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/08—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with halogenated hydrocarbons
    • 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
    • Y10S264/08—Fibrillating cellular materials
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49119—Brush
    • 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
    • Y10T442/2164—Coating or impregnation specified as water repellent
    • Y10T442/2189—Fluorocarbon containing
    • 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
    • Y10T442/2221—Coating or impregnation is specified as water proof
    • Y10T442/2238—Fluorocarbon containing
    • 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
    • Y10T442/2262—Coating or impregnation is oil repellent but not oil or stain release
    • Y10T442/227—Fluorocarbon containing
    • 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]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Filtering Materials (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Electrostatic Separation (AREA)

Abstract

''ELETRETO, PROCESSO DE PRODUçãO DE UM ELETRETO, FILTRO, E, RESPIRADOR''. Um eletreto que inclui um artigo polimérico superficialmente modificado tendo fluoração superficial produzida pela fluoração do artigo polimérico. O eletreto pode ser um tecido fibroso nõ-tecido, que compreende microfibras carregadas eletricamente, em que o tecido possui fluoração que inclui grupos CF~ 3~ e CF~ 2~ sobre a superfície das fibras em uma razão de CF~ 3~:CF~ 2~ de pelo menos 0,45.
BRPI9911728-2A 1998-07-02 1999-06-21 eletreto, processo de produÇço de um eletreto, filtro, e, respirador. BR9911728B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/109,497 US6432175B1 (en) 1998-07-02 1998-07-02 Fluorinated electret
PCT/US1999/013917 WO2000001737A1 (en) 1998-07-02 1999-06-21 Fluorinated electret

Publications (2)

Publication Number Publication Date
BR9911728A true BR9911728A (pt) 2001-03-20
BR9911728B1 BR9911728B1 (pt) 2008-11-18

Family

ID=22327974

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9911728-2A BR9911728B1 (pt) 1998-07-02 1999-06-21 eletreto, processo de produÇço de um eletreto, filtro, e, respirador.

Country Status (10)

Country Link
US (8) US6432175B1 (pt)
EP (1) EP1093474B1 (pt)
JP (1) JP4440470B2 (pt)
KR (1) KR100617428B1 (pt)
AU (1) AU750831B2 (pt)
BR (1) BR9911728B1 (pt)
CA (1) CA2334806A1 (pt)
DE (1) DE69920227T2 (pt)
ES (1) ES2228063T3 (pt)
WO (1) WO2000001737A1 (pt)

Families Citing this family (164)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6432175B1 (en) * 1998-07-02 2002-08-13 3M Innovative Properties Company Fluorinated electret
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
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
US6524360B2 (en) 2000-02-15 2003-02-25 Hollingsworth & Vose Company Melt blown composite HEPA filter media and vacuum bag
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
US6673136B2 (en) 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
US6740142B2 (en) 2000-09-05 2004-05-25 Donaldson Company, Inc. Industrial bag house elements
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
US7270693B2 (en) 2000-09-05 2007-09-18 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US6800117B2 (en) 2000-09-05 2004-10-05 Donaldson Company, Inc. Filtration arrangement utilizing pleated construction and method
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
US6802315B2 (en) 2001-03-21 2004-10-12 Hollingsorth & Vose Company Vapor deposition treated electret filter media
US7101423B2 (en) * 2001-04-24 2006-09-05 Ulrich Lersch Respiratory air filter
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
US6899931B2 (en) * 2001-09-07 2005-05-31 S. C. Johnson Home Storage, Inc. Film material
US20030049294A1 (en) * 2001-09-07 2003-03-13 Jose Porchia Film material
US20030049410A1 (en) * 2001-09-07 2003-03-13 Munagavalasa Murthy S. Film material and method of dispensing a volatile substance
US6846449B2 (en) * 2001-09-07 2005-01-25 S. C. Johnson Home Storage, Inc. Method of producing an electrically charged film
US7887889B2 (en) 2001-12-14 2011-02-15 3M Innovative Properties Company Plasma fluorination treatment of porous materials
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
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
US20040043221A1 (en) * 2002-08-30 2004-03-04 3M Innovative Properties Company Method of adhering a film and articles therefrom
US20040202820A1 (en) * 2002-08-30 2004-10-14 3M Innovative Properties Company Perforated electret articles and method of making the same
US20040040652A1 (en) * 2002-08-30 2004-03-04 3M Innovative Properties Company Methods for electrostatically adhering an article to a substrate
AU2003256358A1 (en) 2002-08-30 2004-03-19 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
US20040043248A1 (en) * 2002-08-30 2004-03-04 3M Innovative Properties Company Phosphorescent elecret films and methods of making the same
JP4949629B2 (ja) 2002-09-16 2012-06-13 トリオシン・ホールディング・インコーポレイテッド 活性剤が加入された静電的に荷電したフィルター媒体
US6874499B2 (en) * 2002-09-23 2005-04-05 3M Innovative Properties Company Filter element that has a thermo-formed housing around filter material
US20050000642A1 (en) * 2003-07-03 2005-01-06 3M Innovative Properties Company Cling articles
US20050006303A1 (en) * 2003-07-11 2005-01-13 Sanders Robert G. Atmospheric plasma treatment of meltblown fibers used in filtration
ATE530242T1 (de) 2003-07-18 2011-11-15 David Richard Hallam Luftbehandlungsvorrichtung
TWI301070B (en) * 2004-01-13 2008-09-21 Jong J Huang Personal inhalation filter
US20050161046A1 (en) * 2004-01-22 2005-07-28 Michaels Robert C. Personal air purifier
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
US20060021302A1 (en) * 2004-07-30 2006-02-02 Bernard Bobby L Anti-microbial air filter
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
KR20070107109A (ko) * 2005-03-07 2007-11-06 쓰리엠 이노베이티브 프로퍼티즈 컴파니 차량 객실부 공기 필터 장치
BRPI0609991A2 (pt) * 2005-04-22 2011-10-18 3M Innovative Properties Co dispositivo de filtro de ar para compartimento de passageiros de veìculo
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
US20070062886A1 (en) * 2005-09-20 2007-03-22 Rego Eric J Reduced pressure drop coalescer
US7959714B2 (en) * 2007-11-15 2011-06-14 Cummins Filtration Ip, Inc. Authorized filter servicing and replacement
US7674425B2 (en) * 2005-11-14 2010-03-09 Fleetguard, Inc. Variable coalescer
US8114183B2 (en) * 2005-09-20 2012-02-14 Cummins Filtration Ip Inc. Space optimized coalescer
US7828869B1 (en) 2005-09-20 2010-11-09 Cummins Filtration Ip, Inc. Space-effective filter element
US7691168B2 (en) * 2005-10-19 2010-04-06 3M Innovative Properties Company Highly charged, charge stable nanofiber web
US8231752B2 (en) * 2005-11-14 2012-07-31 Cummins Filtration Ip Inc. Method and apparatus for making filter element, including multi-characteristic filter element
US7976662B2 (en) * 2005-12-15 2011-07-12 Kimberly-Clark Worldwide, Inc. Laminate containing a fluorinated nonwoven web
US7503326B2 (en) 2005-12-22 2009-03-17 3M Innovative Properties Company Filtering face mask with a unidirectional valve having a stiff unbiased flexible flap
US7390351B2 (en) * 2006-02-09 2008-06-24 3M Innovative Properties Company Electrets and compounds useful in electrets
US9770058B2 (en) * 2006-07-17 2017-09-26 3M Innovative Properties Company Flat-fold respirator with monocomponent filtration/stiffening monolayer
US7905973B2 (en) * 2006-07-31 2011-03-15 3M Innovative Properties Company Molded monocomponent monolayer respirator
US7858163B2 (en) * 2006-07-31 2010-12-28 3M Innovative Properties Company Molded monocomponent monolayer respirator with bimodal monolayer monocomponent media
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
RU2404306C2 (ru) * 2006-07-31 2010-11-20 3М Инновейтив Пропертиз Компани Способ изготовления формованных фильтрующих изделий
DE102006060932A1 (de) * 2006-12-20 2008-07-03 Carl Freudenberg Kg Temperaturstabile plasmabehandelte Gebilde und Verfahren zu deren Herstellung
US8257459B2 (en) * 2007-02-28 2012-09-04 Hollingsworth & Vose Company Waved filter media and elements
US7883562B2 (en) 2007-02-28 2011-02-08 Hollingsworth & Vose Company Waved filter media and elements
US8202340B2 (en) * 2007-02-28 2012-06-19 Hollingsworth & Vose Company Waved filter media and elements
DE102007018937A1 (de) * 2007-04-21 2008-10-23 Helsa-Automotive Gmbh & Co. Kg Elektrostatisch geladenes oder aufladbares Filtermaterial und Verfahren zu dessen Herstellung
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
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
US8342180B2 (en) 2007-09-20 2013-01-01 3M Innovative Properties Company Filtering face-piece respirator that has expandable mask body
EP2222908B1 (en) * 2007-12-06 2013-01-16 3M Innovative Properties Company Electret webs with charge-enhancing additives
DE102007060515A1 (de) * 2007-12-13 2009-06-18 Christof-Herbert Diener Oberflächenbehandlungsverfahren
WO2009086339A2 (en) * 2007-12-27 2009-07-09 3M Innovative Properties Company Dust collection device for sanding tool
CN101945691B (zh) 2008-02-21 2013-11-06 3M创新有限公司 胺和多元羧酸的加合物以及包含这种加合物的过滤介质
US8613795B2 (en) * 2008-06-02 2013-12-24 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
KR20110022644A (ko) * 2008-06-02 2011-03-07 쓰리엠 이노베이티브 프로퍼티즈 컴파니 일렉트릿용 전하 증대 첨가제
GB0810326D0 (en) * 2008-06-06 2008-07-09 P2I Ltd Filtration media
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
US20100154105A1 (en) * 2008-12-24 2010-06-24 Mathis Michael P Treated cuff
RU2477344C1 (ru) 2009-04-03 2013-03-10 3М Инновейтив Пропертиз Компани Электретные полотна с добавками, способствующими заряжанию полотна
US20100252047A1 (en) * 2009-04-03 2010-10-07 Kirk Seth M Remote fluorination of fibrous filter webs
MX2011010443A (es) 2009-04-03 2011-10-24 3M Innovative Properties Co Auxiliares de procesamiento para redes olefinicas, incluyendo redes de electreto.
CA2771830C (en) * 2009-09-09 2019-02-26 Sensa Bues Ab Drug detection in exhaled breath
KR20110031144A (ko) 2009-09-18 2011-03-24 쓰리엠 이노베이티브 프로퍼티즈 컴파니 파지 특징부 표시부를 갖는 안면부 여과식 호흡기
US8881729B2 (en) 2009-09-18 2014-11-11 3M Innovative Properties Company Horizontal flat-fold filtering face-piece respirator having indicia of symmetry
US8640704B2 (en) 2009-09-18 2014-02-04 3M Innovative Properties Company Flat-fold filtering face-piece respirator having structural weld pattern
US20110078848A1 (en) * 2009-10-05 2011-04-07 Mathis Michael P Treatment of Folded Articles
TWI465118B (zh) 2009-10-22 2014-12-11 Ind Tech Res Inst 駐極體振膜與使用此駐極體振膜的喇叭
US8528560B2 (en) 2009-10-23 2013-09-10 3M Innovative Properties Company Filtering face-piece respirator having parallel line weld pattern in mask body
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
KR101869568B1 (ko) 2009-12-30 2018-06-20 쓰리엠 이노베이티브 프로퍼티즈 컴파니 마스크 본체 내에 팽창 메시를 갖는 안면부 여과식 호흡기
US20120017911A1 (en) 2010-07-26 2012-01-26 3M Innovative Properties Company Filtering face-piece respirator having foam shaping layer
KR101962406B1 (ko) 2010-10-25 2019-03-26 릭 엘. 채프먼 전략적 이형단면 섬유 및/또는 전하 제어제를 함유하는 섬유 블렌드를 사용하는 여과 물질
US20120125341A1 (en) 2010-11-19 2012-05-24 3M Innovative Properties Company Filtering face-piece respirator having an overmolded face seal
US8840970B2 (en) 2011-01-16 2014-09-23 Sigma Laboratories Of Arizona, Llc Self-assembled functional layers in multilayer structures
WO2012109126A1 (en) 2011-02-08 2012-08-16 Dow Global Technologies Llc System and method for reducing emissions from a combustion process
JP6141836B2 (ja) 2011-06-30 2017-06-07 スリーエム イノベイティブ プロパティズ カンパニー 不織布エレクトレット繊維ウェブ及びその製造方法
AU2012290229B2 (en) 2011-08-01 2015-11-12 3M Innovative Properties Company Respiratory assembly including latching mechanism
US9700743B2 (en) 2012-07-31 2017-07-11 3M Innovative Properties Company Respiratory assembly including latching mechanism
WO2013185874A2 (de) 2012-06-14 2013-12-19 Irema-Filter Gmbh Filtermedium aus synthetischem polymer
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
PL2938420T3 (pl) 2012-12-28 2018-07-31 3M Innovative Properties Company Wstęgi elektretowe z dodatkami zwiększającymi ładunek
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
US9510626B2 (en) 2013-02-01 2016-12-06 3M Innovative Properties Company Sleeve-fit respirator cartridge
KR20150144333A (ko) 2013-04-19 2015-12-24 쓰리엠 이노베이티브 프로퍼티즈 캄파니 전하 증대 첨가제를 갖는 일렉트릿 웨브
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
CA2933340C (en) 2013-12-17 2022-05-31 3M Innovative Properties Company Air quality indicator
EP3110275B1 (en) 2014-02-27 2019-01-09 3M Innovative Properties Company Respirator having elastic straps having openwork structure
WO2015130934A1 (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
ES2674802T3 (es) 2014-06-23 2018-07-04 3M Innovative Properties Company Bandas de electret con aditivos potenciadores de la carga
US10441909B2 (en) 2014-06-25 2019-10-15 Hollingsworth & Vose Company Filter media including oriented fibers
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
KR20170078717A (ko) 2014-10-31 2017-07-07 쓰리엠 이노베이티브 프로퍼티즈 캄파니 파형 여과 구조물을 갖는 호흡기
GB201508114D0 (en) 2015-05-12 2015-06-24 3M Innovative Properties Co Respirator tab
KR102662840B1 (ko) 2015-07-07 2024-05-03 쓰리엠 이노베이티브 프로퍼티즈 캄파니 이온성 첨가제를 갖는 중합체 매트릭스
BR112018000381A2 (pt) 2015-07-07 2018-09-11 3M Innovative Properties Company sais de fenolato de benzotriazol substituído e composições antioxidantes formadas a partir dos mesmos
BR112018000291B1 (pt) 2015-07-07 2022-05-31 3M Innovative Properties Company Mantas de eletreto que compreendem aditivos acentuadores de carga
BR112018000412A2 (pt) 2015-07-07 2018-09-11 3M Innovative Properties Co benzotriazol fenóis substituídos
US9968963B2 (en) 2015-08-31 2018-05-15 Sigma Laboratories Of Arizona, Llc Functional coating
US10449474B2 (en) 2015-09-18 2019-10-22 Hollingsworth & Vose Company Filter media including a waved filtration layer
US10561972B2 (en) 2015-09-18 2020-02-18 Hollingsworth & Vose Company Filter media including a waved filtration layer
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
CN108348790B (zh) 2015-11-11 2021-09-07 3M创新有限公司 形状保持平折式呼吸器
US12420221B2 (en) 2016-07-01 2025-09-23 Hollingsworth & Vose Company Multi-layered electret-containing filtration media
CA3036977A1 (en) 2016-09-16 2018-03-22 3M Innovative Properties Company Exhalation valve and respirator including same
BR112019008611A2 (pt) 2016-10-28 2019-07-09 3M Innovative Properties Co respirador que inclui elemento de reforço
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
CN107081008B (zh) * 2017-04-07 2019-05-31 深圳市新纶科技股份有限公司 聚烯烃膜裂纤维及制备方法以及由其制备的驻极体空气过滤材料
US11813581B2 (en) 2017-07-14 2023-11-14 3M Innovative Properties Company Method and adapter for conveying plural liquid streams
EP3732251A4 (en) 2017-12-28 2021-09-15 3M Innovative Properties Company CERAMIC COATED FIBERS WITH A FLAME RETARDANT POLYMER AND A PROCESS FOR MANUFACTURING FLEECE STRUCTURES
US12150502B2 (en) 2018-01-03 2024-11-26 3M Innovative Properties Company Respirator including transversely-extending pleat and method of forming same
JP7354564B2 (ja) * 2019-03-25 2023-10-03 富士フイルムビジネスイノベーション株式会社 エレクトレット膜、エレクトレット部材、及びエレクトレット膜の製造方法
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
US12467174B2 (en) 2019-10-16 2025-11-11 3M Innovative Properties Company Substituted benzimidazole melt additives
US20220380574A1 (en) 2019-10-16 2022-12-01 3M Innovative Properties Company Dual-function melt additives
EP4069899B1 (en) 2019-12-03 2025-08-13 3M Innovative Properties Company Aromatic-heterocyclic ring melt additives
WO2021111246A1 (en) 2019-12-03 2021-06-10 3M Innovative Properties Company Thiolate salt melt additives
EP4097285B1 (en) 2020-01-27 2024-06-26 3M Innovative Properties Company Substituted thiol melt additives
WO2021152422A1 (en) 2020-01-27 2021-08-05 3M Innovative Properties Company Substituted thiolate salt melt additives
WO2022034444A1 (en) 2020-08-11 2022-02-17 3M Innovative Properties Company Electret webs with benzoate salt charge-enhancing additives
US20230311038A1 (en) 2020-08-11 2023-10-05 3M Innovative Properties Company Electret webs with carboxylic acid or carboxylate salt charge-enhancing additives
WO2022091060A1 (en) 2020-11-02 2022-05-05 3M Innovative Properties Company Core-sheath fibers, nonwoven fibrous web, and filtering articles including the same
CN112337649B (zh) * 2020-11-16 2021-12-07 浙江大学 一种去除烟气中正构烷烃的除尘装置和方法
WO2022130080A1 (en) 2020-12-18 2022-06-23 3M Innovative Properties Company Electrets comprising a substituted cyclotriphosphazene compound and articles therefrom
WO2023031697A1 (en) 2021-09-01 2023-03-09 3M Innovative Properties Company Anti-virus respirator and mask
US20240115889A1 (en) 2022-10-07 2024-04-11 3M Innovative Properties Company Disposable, Flat-Fold Respirator Having Increased Stiffness in Selected Areas
WO2025202974A1 (en) 2024-03-29 2025-10-02 3M Innovative Properties Company Respirators, respirator materials and methods of manufacturing the same

Family Cites Families (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994258A (en) 1973-06-01 1976-11-30 Bayer Aktiengesellschaft Apparatus for the production of filters by electrostatic fiber spinning
NL160303C (nl) 1974-03-25 1979-10-15 Verto Nv Werkwijze voor het vervaardigen van een vezelfilter.
GB1527592A (en) 1974-08-05 1978-10-04 Ici Ltd Wound dressing
CA1073648A (en) 1976-08-02 1980-03-18 Edward R. Hauser Web of blended microfibers and crimped bulking fibers
NL181632C (nl) * 1976-12-23 1987-10-01 Minnesota Mining & Mfg Electreetfilter en werkwijze voor het vervaardigen daarvan.
US4188426A (en) 1977-12-12 1980-02-12 Lord Corporation Cold plasma modification of organic and inorganic surfaces
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
JPS5560947A (en) 1978-10-31 1980-05-08 Toray Ind Inc Fixing method of negative type lithographic printing plate which does not requier dampening water
NL7907539A (nl) 1979-10-11 1981-04-14 Tno Werkwijze voor het vervaardigen van elektreten.
CA1141020A (en) 1979-10-19 1983-02-08 Slawomir W. Sapieha Electrets from plasma polymerized material
US4375718A (en) 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
US4527218A (en) 1981-06-08 1985-07-02 At&T Bell Laboratories Stable positively charged Teflon electrets
US4588537A (en) 1983-02-04 1986-05-13 Minnesota Mining And Manufacturing Company Method for manufacturing an electret filter medium
JPS60947A (ja) 1983-06-01 1985-01-07 大日本インキ化学工業株式会社 樹脂製筒状成形物
JPS6015137A (ja) 1983-07-08 1985-01-25 凸版印刷株式会社 角筒状容器の製造方法
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
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
DE3509857C2 (de) 1984-03-19 1994-04-28 Toyo Boseki Elektretisiertes Staubfilter und dessen Herstellung
US4874659A (en) 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
GB8612070D0 (en) 1986-05-19 1986-06-25 Brown R C Blended-fibre filter material
US5025052A (en) 1986-09-12 1991-06-18 Minnesota Mining And Manufacturing Company Fluorochemical oxazolidinones
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
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)
JPH01232038A (ja) 1988-03-11 1989-09-18 Kuraray Co Ltd エレクトレット化高分子シート状物及びその製造方法
JP2672329B2 (ja) 1988-05-13 1997-11-05 東レ株式会社 エレクトレット材料
JPH05214A (ja) 1990-11-30 1993-01-08 Mitsui Petrochem Ind Ltd エレクトレツトフイルター
US5244780A (en) 1991-05-28 1993-09-14 Minnesota Mining And Manufacturing Company Element having adhesion of gelatin and emulsion coatings to polyester film
CA2110499C (en) * 1991-06-14 1998-06-23 Stanislaw L. Zukowski Surface modified porous expanded polytetrafluoroethylene and process for making
JPH05253416A (ja) * 1992-03-13 1993-10-05 Mitsui Petrochem Ind Ltd エレクトレットフィルターの製造方法
US5370830A (en) 1992-09-23 1994-12-06 Kimberly-Clark Corporation Hydrosonic process for forming electret filter media
DE69404736T2 (de) 1993-03-09 1998-01-08 Hoechst Celanese Corp Polymer-Elektrete mit verbesserter Ladungsstabilität
ATE259007T1 (de) 1993-03-09 2004-02-15 Trevira Gmbh Elektretfasern mit verbesserter ladungsstabilität,verfahren zu ihrer herstellung, und textilmaterial enthaltend diese elektretfasern
US5643525A (en) 1993-03-26 1997-07-01 E. I. Du Pont De Nemours And Company Process for improving electrostatic charging of plexifilaments
AU669420B2 (en) 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
DE4327595A1 (de) 1993-08-17 1995-02-23 Hoechst Ag Zusammensetzungen mit verbesserten elektrostatischen Eigenschaften enthaltend aromatische Polyamide, daraus hergestellte geformte Gebilde sowie deren Verwendung und Verfahren zu ihrer Herstellung
ES2336163T3 (es) 1993-08-17 2010-04-08 Minnesota Mining And Manufacturing Company Metodo para cargar medios filtrantes de electretos.
US5464010A (en) * 1993-09-15 1995-11-07 Minnesota Mining And Manufacturing Company Convenient "drop-down" respirator harness structure and method of use
EP0741585A1 (en) 1994-01-21 1996-11-13 Brown University Research Foundation Biocompatible implants
JPH0857225A (ja) 1994-08-25 1996-03-05 Sekisui Chem Co Ltd フィルターの製造方法
US5675627A (en) * 1994-11-29 1997-10-07 Lucent Technologies Inc. Integrated pager and calling card
US5645627A (en) * 1995-02-28 1997-07-08 Hollingsworth & Vose Company Charge stabilized electret filter media
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
US5964926A (en) * 1996-12-06 1999-10-12 Kimberly-Clark Worldwide, Inc. Gas born particulate filter and method of making
JP3566477B2 (ja) * 1996-12-26 2004-09-15 興研株式会社 静電フィルター
NZ501791A (en) 1997-06-14 2001-09-28 Secr Defence Method for coating fabric, paper or other surface using pulsed plasma polymerisation
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
US6213122B1 (en) 1997-10-01 2001-04-10 3M Innovative Properties Company Electret fibers and filter webs having a low level of extractable hydrocarbons
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
US6231122B1 (en) * 1999-09-09 2001-05-15 Trek Bicycle Corporation Bicycle saddle
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
US6419871B1 (en) * 2000-05-25 2002-07-16 Transweb, Llc. Plasma treatment of filter media

Also Published As

Publication number Publication date
US20040207125A1 (en) 2004-10-21
US6432175B1 (en) 2002-08-13
US20020152892A1 (en) 2002-10-24
JP2002519483A (ja) 2002-07-02
US6398847B1 (en) 2002-06-04
CA2334806A1 (en) 2000-01-13
DE69920227D1 (de) 2004-10-21
US6808551B2 (en) 2004-10-26
US6409806B1 (en) 2002-06-25
US20030177908A1 (en) 2003-09-25
US6562112B2 (en) 2003-05-13
AU750831B2 (en) 2002-08-01
JP4440470B2 (ja) 2010-03-24
KR100617428B1 (ko) 2006-08-30
WO2000001737A1 (en) 2000-01-13
AU4700299A (en) 2000-01-24
DE69920227T2 (de) 2005-09-22
US20040065196A1 (en) 2004-04-08
US6397458B1 (en) 2002-06-04
EP1093474B1 (en) 2004-09-15
US6953544B2 (en) 2005-10-11
ES2228063T3 (es) 2005-04-01
BR9911728B1 (pt) 2008-11-18
US6660210B2 (en) 2003-12-09
KR20010053339A (ko) 2001-06-25
EP1093474A1 (en) 2001-04-25

Similar Documents

Publication Publication Date Title
BR9911728A (pt) Eletreto, processo de produção de um eletreto, filtro, e, respirador
BR9305661A (pt) Pano de polímero de lactideo estável em fusao e processo para a sua fabricaçao
DE59801097D1 (de) Verfahren und vorrichtung zur herstellung einer aus cellulose-fasern bestehenden faserstoffbahn für die verwendung in hygieneartikeln
BR9815073A (pt) Rede cerâmica, e, processo para a produção e utilização da mesma
BR9916784A (pt) Agregado superficial de fibras com estrutura tridimensional e processo para a sua fabricação
BR9815471B1 (pt) tecido não-tecido; fibra de componentes múltiplos; e processo para preparação de fibras contendo polilactìdeo de encolhimento baixo.
DK0954626T3 (da) Sammensatte elastomere garner
FI912146A7 (fi) Kolmiuloitteisia polymeerikuitumattoja, joilla on parannetut fysikaaliset ominaisuudet
IT1276586B1 (it) Pallone da calcio con copertura di poliuretano rinforzato con fibre
DE60044747D1 (de) Gesichtsmaske aus elektrogesponnenen fasern und ihre verwendung
DK0880610T3 (da) Partikelholdige fibre
BR9908035A (pt) Misturas cardáveis de fibras de vidro duplas, teia uniforme e consistente, processo para formação de feltro, feltro de filtro e tecido de filtro
BR8501212A (pt) Colchao fibroso,processo para sua fabricacao,processo de aplicacao do mesmo,e,painel conformado
BR8305377A (pt) Pano nao-tecido e processo para produzir o mesmo
FI942890L (fi) Kuituja, jotka soveltuvat sellaisten nonwovenkankaiden valmistukseen, joilla on parantuneet lujuus- ja pehmeysominaisuudet
DE69024915D1 (de) Textilbehandlungsmittel mit Weichmachereigenschaften
ATE77417T1 (de) Cellulosefaser.
FI942891A7 (fi) Kuituja, jotka soveltuvat sellaisten nonwovenkankaiden valmistukseen, joilla on parantuneet lujuus- ja pehmeysominaisuudet
ES2120243T3 (es) Procedimiento para la produccion de cuerpos moldeados celulosicos y un hilado de filamentos celulosicos.
ES2045863T3 (es) Alma textil, procedimiento de fabricacion y producto compuesto obtenido con dicha alma textil.
DE69111335D1 (de) Vliesstoff aus Kohlefasern und dessen Herstellverfahren.
BR0206452A (pt) Composição e método de tratamento de tecido, e, uso de uma composição
UA12839A (uk) Спосіб одержаhhя hеткаhих голкопроколюваhих матеріалів з термопластичhих волокоh
AR008779A1 (es) Una fibra porosa que incluye vacios
KR920701282A (ko) 아크릴 니트릴계 공중합체 및 이로부터 얻어진 섬유, 심초형 복합섬유

Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/06/1999, OBSERVADAS AS CONDICOES LEGAIS.

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

Free format text: REFERENTE A 20A ANUIDADE.

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

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2519 DE 16-04-2019 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.