DE68914001D1 - Verfahren zur Herstellung von Elektretfiltern. - Google Patents

Verfahren zur Herstellung von Elektretfiltern.

Info

Publication number
DE68914001D1
DE68914001D1 DE89300221T DE68914001T DE68914001D1 DE 68914001 D1 DE68914001 D1 DE 68914001D1 DE 89300221 T DE89300221 T DE 89300221T DE 68914001 T DE68914001 T DE 68914001T DE 68914001 D1 DE68914001 D1 DE 68914001D1
Authority
DE
Germany
Prior art keywords
production
electret filters
electret
filters
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
DE89300221T
Other languages
English (en)
Other versions
DE68914001T2 (de
Inventor
Satoshi Mitsui Petroc Matsuura
Masayuki Mitsui Petrochem Mito
Yoshio Mitsui Petroc 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
Priority claimed from JP63004464A external-priority patent/JP2585334B2/ja
Priority claimed from JP63017969A external-priority patent/JP2732474B2/ja
Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Publication of DE68914001D1 publication Critical patent/DE68914001D1/de
Application granted granted Critical
Publication of DE68914001T2 publication Critical patent/DE68914001T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • B01D39/16Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B01D39/163Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/54Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542Adhesive fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0435Electret
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604Arrangement of the fibres in the filtering material
    • B01D2239/0622Melt-blown
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10Filtering material manufacturing
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10Methods of surface bonding and/or assembly therefor
    • Y10T156/1002Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007Running or continuous length work
    • Y10T156/1023Surface deformation only [e.g., embossing]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24058Structurally defined web or sheet [e.g., overall dimension, etc.] including grain, strips, or filamentary elements in respective layers or components in angular relation
    • Y10T428/24074Strand or strand-portions
    • Y10T428/24091Strand or strand-portions with additional layer[s]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24612Composite web or sheet
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826Spot bonds connect components
DE68914001T 1988-01-12 1989-01-11 Verfahren zur Herstellung von Elektretfiltern. Expired - Fee Related DE68914001T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP63004464A JP2585334B2 (ja) 1988-01-12 1988-01-12 エレクトレット化合成繊維不織布フィルタの製造方法
JP63017969A JP2732474B2 (ja) 1988-01-28 1988-01-28 エレクトレットフィルタおよびその製造方法

Publications (2)

Publication Number Publication Date
DE68914001D1 true DE68914001D1 (de) 1994-04-28
DE68914001T2 DE68914001T2 (de) 1994-07-07

Family

ID=26338232

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68914001T Expired - Fee Related DE68914001T2 (de) 1988-01-12 1989-01-11 Verfahren zur Herstellung von Elektretfiltern.

Country Status (5)

Country Link
US (1) US5143767A (de)
EP (1) EP0324601B1 (de)
KR (1) KR910001895B1 (de)
CA (1) CA1325983C (de)
DE (1) DE68914001T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68919363T2 (de) * 1989-05-26 1995-03-30 Toray Industries Staubdichte kopfhaube.
JPH04330907A (ja) * 1991-05-02 1992-11-18 Mitsui Petrochem Ind Ltd エレクトレットフィルターの製造方法
KR950010936A (ko) * 1993-10-20 1995-05-15 시바타 미노루 엘렉트릿 필터
CA2124237C (en) 1994-02-18 2004-11-02 Bernard Cohen Improved nonwoven barrier and method of making the same
CA2136576C (en) 1994-06-27 2005-03-08 Bernard Cohen Improved nonwoven barrier and method of making the same
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
DE19513600C5 (de) * 1995-04-10 2007-10-18 Melitta Haushaltsprodukte Gmbh & Co. Kg Filter für Aufgußgetränke, insbesondere Kaffeefilter und Verfahren zur Herstellung eines derartigen Filters
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
DE19733018C1 (de) * 1997-07-31 1999-01-21 Schmude Gmbh H Filter mit Stützstrukturverbund
US6537932B1 (en) 1997-10-31 2003-03-25 Kimberly-Clark Worldwide, Inc. Sterilization wrap, applications therefor, and method of sterilizing
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
JP2002070501A (ja) * 2000-09-04 2002-03-08 Honda Motor Co Ltd 回転流体機械
US20040011204A1 (en) * 2001-10-11 2004-01-22 Hendrik Both Electrostatic fibrous filter web and method of making same
EP1331030A1 (de) * 2002-01-17 2003-07-30 3M Innovative Properties Company Elektrostatisch geladenes Filterfaservlies und Verfahren zu seiner Herstellung
DE102010025219A1 (de) 2010-06-23 2011-12-29 Hydac Filtertechnik Gmbh Filtermaterial für Fluide und Verfahren zur Herstellung eines Filtermaterials
DE102012020615A1 (de) 2012-10-19 2014-04-24 Hydac Filtertechnik Gmbh Verfahren zur Oberflächenbehandlung eines Filtermediums

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614160C3 (de) * 1976-04-02 1980-04-30 Ramisch Kleinewefers Kalander Gmbh, 4150 Krefeld Verfahren und Vorrichtung zum kontinuierlichen Perforieren bahnförmiger thermoplastischer Vliese, insbesondere von Faservliesen
FR2480807A1 (fr) * 1980-04-18 1981-10-23 Seplast Sa Procede de traitement superficiel d'une couche filtrante fibreuse, non tissee et tres aeree, formant electret et son application aux filtres et aux masques respiratoires notamment
US4302495A (en) * 1980-08-14 1981-11-24 Hercules Incorporated Nonwoven fabric of netting and thermoplastic polymeric microfibers
DE3248753A1 (de) * 1982-12-31 1984-07-12 Akzo Gmbh, 5600 Wuppertal Verfahren zum verdichten von faservliesen
US4874659A (en) * 1984-10-24 1989-10-17 Toray Industries Electret fiber sheet and method of producing same
DE3640580A1 (de) * 1986-11-27 1988-06-09 Akzo Gmbh Kombinationsmatte mit armierung

Also Published As

Publication number Publication date
KR910001895B1 (ko) 1991-03-30
EP0324601A3 (en) 1990-07-18
CA1325983C (en) 1994-01-11
DE68914001T2 (de) 1994-07-07
US5143767A (en) 1992-09-01
EP0324601B1 (de) 1994-03-23
KR890011621A (ko) 1989-08-21
EP0324601A2 (de) 1989-07-19

Similar Documents

Publication Publication Date Title
DE58906156D1 (de) Verfahren zur Herstellung von Membranen.
DE69132176D1 (de) Verfahren zur Herstellung von Elektroden
DE68907164T2 (de) Verfahren zur Herstellung von Allylacetat.
DE68914001T2 (de) Verfahren zur Herstellung von Elektretfiltern.
DE69116828D1 (de) Verfahren zur Herstellung von Zellstoff
DE58906148D1 (de) Verfahren zur Herstellung von Aminen.
DE69113682T2 (de) Verfahren zur Herstellung von Mikrokapseln.
DE69022631D1 (de) Verfahren zur Herstellung von L-Tryptophan.
DE68923643T2 (de) Verfahren zur Herstellung von L-Tryptophan.
DE69112255D1 (de) Verfahren zur Herstellung von Mikrokapseln.
DE68917992D1 (de) Verfahren zur Herstellung von körnigem porösem Chitosan.
DE68922360D1 (de) Verfahren zur Herstellung von Metall-Polyimid-Verbundwerkstoffen.
DE69109574T2 (de) Verfahren zur Herstellung von Trifluoroethylen.
ATE86619T1 (de) Verfahren zur herstellung von nitroethenderivaten.
DE58906122D1 (de) Verfahren zur Herstellung von Phenylethanolen.
DE69406342D1 (de) Verfahren zur Herstellung von Filterzigaretten
DE69023991T2 (de) Verfahren zur Herstellung von Chlortrifluorethylen.
DE58909821D1 (de) Verfahren zur Herstellung von Diaphragmen
DE69008697T2 (de) Verfahren zur Herstellung von Pentafluordichlorpropanen.
DE69005770D1 (de) Verfahren zur Herstellung von Pentafluordichlorpropanen.
ATE85321T1 (de) Verfahren zur herstellung von anilinofumaraten.
DE58908158D1 (de) Verfahren zur Herstellung von nadelförmigem alpha-Eisen-III-oxid.
DE69013242D1 (de) Verfahren zur Herstellung von Polyolefinen.
DE69405630D1 (de) Verfahren zur Herstellung von Filterzigaretten
DE69027076D1 (de) Verfahren zur Herstellung von Levoglukosenon

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