DE69214505T2 - Verfahren zur Herstellung eines Elektretfilters - Google Patents

Verfahren zur Herstellung eines Elektretfilters

Info

Publication number
DE69214505T2
DE69214505T2 DE69214505T DE69214505T DE69214505T2 DE 69214505 T2 DE69214505 T2 DE 69214505T2 DE 69214505 T DE69214505 T DE 69214505T DE 69214505 T DE69214505 T DE 69214505T DE 69214505 T2 DE69214505 T2 DE 69214505T2
Authority
DE
Germany
Prior art keywords
manufacturing
electret filter
electret
filter
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 - Fee Related
Application number
DE69214505T
Other languages
English (en)
Other versions
DE69214505D1 (de
Inventor
Satoshi Matsuura
Akira Yokoyama
Yoshio Shinagawa
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.)
Mitsui Chemicals Inc
Original Assignee
Mitsui Petrochemical Industries Ltd
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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Application granted granted Critical
Publication of DE69214505D1 publication Critical patent/DE69214505D1/de
Publication of DE69214505T2 publication Critical patent/DE69214505T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • 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
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C71/00—After-treatment of articles without altering their shape; Apparatus therefor
    • B29C71/04—After-treatment of articles without altering their shape; Apparatus therefor by wave energy or particle radiation, e.g. for curing or vulcanising preformed articles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
    • H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
    • H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
    • H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0435—Electret
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0457—Specific fire retardant or heat resistant properties
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
    • B29C2035/085—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using gamma-ray
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
    • B29C35/0866—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation
    • B29C2035/0877—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using particle radiation using electron radiation, e.g. beta-rays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2086/00—Use of specific polymers obtained by polycondensation or polyaddition, not provided for in a single one of main groups B29K2059/00 - B29K2085/00, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2096/00—Use of specified macromolecular materials not provided for in a single one of main groups B29K2001/00 - B29K2095/00, as moulding material
    • B29K2096/02—Graft polymers
    • 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
    • Y10S264/47—Processes of splitting film, webs or sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Textile Engineering (AREA)
  • Filtering Materials (AREA)
  • Electrostatic Separation (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
DE69214505T 1991-05-02 1992-05-01 Verfahren zur Herstellung eines Elektretfilters Expired - Fee Related DE69214505T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3100754A JPH04330907A (ja) 1991-05-02 1991-05-02 エレクトレットフィルターの製造方法

Publications (2)

Publication Number Publication Date
DE69214505D1 DE69214505D1 (de) 1996-11-21
DE69214505T2 true DE69214505T2 (de) 1997-03-20

Family

ID=14282309

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69214505T Expired - Fee Related DE69214505T2 (de) 1991-05-02 1992-05-01 Verfahren zur Herstellung eines Elektretfilters

Country Status (6)

Country Link
US (1) US5246637A (de)
EP (1) EP0512764B1 (de)
JP (1) JPH04330907A (de)
KR (1) KR100219692B1 (de)
CA (1) CA2067925A1 (de)
DE (1) DE69214505T2 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2849291B2 (ja) * 1992-10-19 1999-01-20 三井化学株式会社 エレクトレット化不織布およびその製造方法
JP3476084B2 (ja) * 1993-08-17 2003-12-10 ミネソタ マイニング アンド マニュファクチャリング カンパニー エレクトレット濾過材の荷電方法
CA2124237C (en) 1994-02-18 2004-11-02 Bernard Cohen Improved nonwoven barrier and method of making the same
US5507997A (en) * 1994-03-31 1996-04-16 Montell North America Inc. Process for preparing a thermal bondable fiber
JP3311201B2 (ja) 1994-06-08 2002-08-05 キヤノン株式会社 画像形成装置
CA2136576C (en) 1994-06-27 2005-03-08 Bernard Cohen Improved nonwoven barrier and method of making the same
WO1996017569A2 (en) 1994-12-08 1996-06-13 Kimberly-Clark Worldwide, Inc. Method of forming a particle size gradient in an absorbent article
CA2153278A1 (en) 1994-12-30 1996-07-01 Bernard Cohen Nonwoven laminate barrier material
ZA965786B (en) 1995-07-19 1997-01-27 Kimberly Clark Co Nonwoven barrier and method of making the same
US5834384A (en) 1995-11-28 1998-11-10 Kimberly-Clark Worldwide, Inc. Nonwoven webs with one or more surface treatments
US6162535A (en) 1996-05-24 2000-12-19 Kimberly-Clark Worldwide, Inc. Ferroelectric fibers and applications therefor
US5744236A (en) * 1996-11-27 1998-04-28 Alliedsignal Inc. Hollow fibers impregnated with solid particles
US6537932B1 (en) 1997-10-31 2003-03-25 Kimberly-Clark Worldwide, Inc. Sterilization wrap, applications therefor, and method of sterilizing
US6054071A (en) * 1998-01-28 2000-04-25 Xerox Corporation Poled electrets for gyricon-based electric-paper displays
US6365088B1 (en) 1998-06-26 2002-04-02 Kimberly-Clark Worldwide, Inc. Electret treatment of high loft and low density nonwoven webs
US6759356B1 (en) 1998-06-30 2004-07-06 Kimberly-Clark Worldwide, Inc. Fibrous electret polymeric articles
US6573205B1 (en) * 1999-01-30 2003-06-03 Kimberly-Clark Worldwide, Inc. Stable electret polymeric articles
US6524360B2 (en) 2000-02-15 2003-02-25 Hollingsworth & Vose Company Melt blown composite HEPA filter media and vacuum bag
EP1385597A1 (de) * 2001-05-02 2004-02-04 HOLLINGSWORTH & VOSE COMPANY Filtermedium mit verbesserter steifheit und erhöhter staubhaltefähigkeit
US20030203696A1 (en) * 2002-04-30 2003-10-30 Healey David Thomas High efficiency ashrae filter media
US9134471B2 (en) 2006-06-28 2015-09-15 3M Innovative Properties Company Oriented polymeric articles and method
US20100212272A1 (en) * 2009-02-24 2010-08-26 Hollingsworth & Vose Company Filter media suitable for ashrae applications

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160303C (nl) * 1974-03-25 1979-10-15 Verto Nv Werkwijze voor het vervaardigen van een vezelfilter.
NL181632C (nl) * 1976-12-23 1987-10-01 Minnesota Mining & Mfg Electreetfilter en werkwijze voor het vervaardigen daarvan.
DE2927238A1 (de) * 1978-07-07 1980-01-17 Holm Varde As Kunststoff-verstaerkungsfasern und verfahren zu ihrer herstellung
JPS5685475A (en) * 1979-12-13 1981-07-11 Japan Atomic Energy Res Inst Production of electlet fiber
US4375718A (en) * 1981-03-12 1983-03-08 Surgikos, Inc. Method of making fibrous electrets
JPS60126372A (ja) * 1983-12-08 1985-07-05 東洋紡績株式会社 エレクトレツト化繊維の製造方法
JPS60225416A (ja) * 1984-04-24 1985-11-09 三井化学株式会社 高性能エレクトレツトおよびエアフイルタ−
JPS61289177A (ja) * 1985-06-17 1986-12-19 東レ株式会社 エレクトレツト繊維状シ−トの製造法
DE3839956C2 (de) * 1987-11-28 1998-07-02 Toyo Boseki Elektret-Folie und Verfahren zu ihrer Herstellung
DE68914001T2 (de) * 1988-01-12 1994-07-07 Mitsui Petrochemical Ind Verfahren zur Herstellung von Elektretfiltern.
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)
CA2037942A1 (en) * 1990-03-12 1991-09-13 Satoshi Matsuura Process for producing an electret, a film electret, and an electret filter

Also Published As

Publication number Publication date
EP0512764B1 (de) 1996-10-16
KR100219692B1 (ko) 1999-09-01
EP0512764A2 (de) 1992-11-11
KR920021190A (ko) 1992-12-18
US5246637A (en) 1993-09-21
CA2067925A1 (en) 1992-11-03
JPH04330907A (ja) 1992-11-18
DE69214505D1 (de) 1996-11-21
EP0512764A3 (en) 1993-06-09

Similar Documents

Publication Publication Date Title
DE69214505T2 (de) Verfahren zur Herstellung eines Elektretfilters
DE69119181T2 (de) Verfahren zur Herstellung eines Filters
ATA248290A (de) Verfahren zur herstellung von celluloseformkoerpern
DE68926313T2 (de) Verfahren zur Herstellung eines Filterelements
DE69126463D1 (de) Verfahren zur Herstellung eines leitenden Elements
DE69225155D1 (de) Verfahren zur Herstellung eines absorbierenden Harzes
DE69528216T2 (de) Verfahren zur Herstellung eines Dauerstents
DE69126165D1 (de) Verfahren zur Herstellung eines Farbfilters
DE69126586T2 (de) Verfahren zur Herstellung einer Vorrichtung
DE69414079T2 (de) Verfahren zur Herstellung eines Farbfilters
DE69205138T2 (de) Verfahren zur Herstellung eines selektiven Isolationssiebfilters.
DE69112653D1 (de) Verfahren zur Herstellung eines Filterelements.
DE4293958T1 (de) Verfahren zur Herstellung von Formteilen aus Cellulose
DE69205558D1 (de) Verfahren zur Herstellung eines selektiven Isolationssiebfilters.
DE69314082T2 (de) Verfahren zur Herstellung eines optischen Bauelements
DE69318380T2 (de) Verfahren zur Herstellung eines Orientierungsfilmes
DE69106467T2 (de) Verfahren zur Herstellung eines Festelektrolytkondensators.
DE69414232D1 (de) Verfahren zur Herstellung eines Filterelements
DE69326796T2 (de) Verfahren zur Herstellung eines Bildes
DE69426147D1 (de) Verfahren zur Herstellung eines Farbfilters
DE69406004D1 (de) Verfahren zur Herstellung eines verbesserten Bilds
DE69126342T2 (de) Thiazolinoazetidinon-Derivat und Verfahren zur Herstellung eines 2-exo-Methylen-penam Derivates daraus
DE69119941T2 (de) Verfahren zur Herstellung eines 3-Formylcephem-Derivats
DE69028308D1 (de) Verfahren zur Herstellung eines Silberbildes
DE69225987D1 (de) Verfahren zur Herstellung eines Farbfilters

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP

8339 Ceased/non-payment of the annual fee