DE69830505D1 - Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz - Google Patents

Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz

Info

Publication number
DE69830505D1
DE69830505D1 DE69830505T DE69830505T DE69830505D1 DE 69830505 D1 DE69830505 D1 DE 69830505D1 DE 69830505 T DE69830505 T DE 69830505T DE 69830505 T DE69830505 T DE 69830505T DE 69830505 D1 DE69830505 D1 DE 69830505D1
Authority
DE
Germany
Prior art keywords
filters
production
electrical products
increased oil
oil fan
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
DE69830505T
Other languages
English (en)
Other versions
DE69830505T2 (de
Inventor
D Rousseau
E Jones
Z Mei
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 DE69830505D1 publication Critical patent/DE69830505D1/de
Application granted granted Critical
Publication of DE69830505T2 publication Critical patent/DE69830505T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/08Filter cloth, i.e. woven, knitted or interlaced material
    • 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
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene
    • 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
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282Addition polymers
    • D04H1/4291Olefin series
    • 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
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326Condensation or reaction polymers
    • D04H1/435Polyesters
    • 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
    • D04H1/42Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825Composite fibres
    • D04H1/43828Composite fibres sheath-core
    • 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
    • D04H1/56Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • 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
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/48Processes of making filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Filtering Materials (AREA)
  • Electrostatic Separation (AREA)
  • Artificial Filaments (AREA)
  • Nonwoven Fabrics (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
DE69830505T 1997-10-01 1998-02-02 Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz Expired - Fee Related DE69830505T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/941,864 US6068799A (en) 1997-10-01 1997-10-01 Method of making electret articles and filters with increased oily mist resistance
US941864 1997-10-01
PCT/US1998/001457 WO1999016533A1 (en) 1997-10-01 1998-02-02 Method of making electret articles and filters with increased oily mist resistance

Publications (2)

Publication Number Publication Date
DE69830505D1 true DE69830505D1 (de) 2005-07-14
DE69830505T2 DE69830505T2 (de) 2006-03-23

Family

ID=25477186

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69830505T Expired - Fee Related DE69830505T2 (de) 1997-10-01 1998-02-02 Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz

Country Status (14)

Country Link
US (1) US6068799A (de)
EP (1) EP1019174B1 (de)
JP (1) JP2003522300A (de)
KR (1) KR100519882B1 (de)
CN (1) CN1154530C (de)
AU (1) AU739986B2 (de)
BR (1) BR9812593A (de)
CA (1) CA2304284A1 (de)
CZ (1) CZ295232B6 (de)
DE (1) DE69830505T2 (de)
ES (1) ES2242272T3 (de)
PL (1) PL339655A1 (de)
RU (1) RU2246979C2 (de)
WO (1) WO1999016533A1 (de)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6213122B1 (en) 1997-10-01 2001-04-10 3M Innovative Properties Company Electret fibers and filter webs having a low level of extractable hydrocarbons
US6732733B1 (en) 1997-10-03 2004-05-11 3M Innovative Properties Company Half-mask respirator with head harness assembly
US6062221A (en) 1997-10-03 2000-05-16 3M Innovative Properties Company Drop-down face mask assembly
US6432175B1 (en) 1998-07-02 2002-08-13 3M Innovative Properties Company Fluorinated electret
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
US6800117B2 (en) 2000-09-05 2004-10-05 Donaldson Company, Inc. Filtration arrangement utilizing pleated construction and method
US20020092423A1 (en) * 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
US7270693B2 (en) * 2000-09-05 2007-09-18 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US7115150B2 (en) * 2000-09-05 2006-10-03 Donaldson Company, Inc. Mist filtration arrangement utilizing fine fiber layer in contact with media having a pleated construction and floor filter method
US6740142B2 (en) * 2000-09-05 2004-05-25 Donaldson Company, Inc. Industrial bag house elements
US6673136B2 (en) * 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
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
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
RU2300543C2 (ru) * 2001-05-31 2007-06-10 Дональдсон Компани, Инк. Составы тонкого волокна, способы их получения, способ изготовления тонковолокнистого материала
JP2004057976A (ja) * 2002-07-30 2004-02-26 Toyobo Co Ltd 生分解性を有するエレクトレット濾材およびその製造方法
KR100809568B1 (ko) * 2004-04-23 2008-03-04 마츠시다 덴코 가부시키가이샤 정전 무화기를 구비한 가열 송풍 장치
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
US20090000624A1 (en) * 2007-06-28 2009-01-01 3M Innovative Properties Company Respirator having a harness and methods of making and fitting the same
KR101554052B1 (ko) * 2007-12-06 2015-09-17 쓰리엠 이노베이티브 프로퍼티즈 컴파니 전하 증대 접착제를 갖는 일렉트릿 웨브
US7765698B2 (en) * 2008-06-02 2010-08-03 3M Innovative Properties Company Method of making electret articles based on zeta potential
WO2009148744A2 (en) * 2008-06-02 2009-12-10 3M Innovative Properties Company Electret webs with charge-enhancing additives
US20110137082A1 (en) * 2008-06-02 2011-06-09 Li Fuming B Charge-enhancing additives for electrets
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
US8365771B2 (en) 2009-12-16 2013-02-05 3M Innovative Properties Company Unidirectional valves and filtering face masks comprising unidirectional valves
CN103781956B (zh) * 2011-06-30 2016-09-28 3M创新有限公司 非织造驻极体纤维网及其制备方法
EP2726659B1 (de) 2011-06-30 2020-11-11 3M Innovative Properties Company Nichtgewebte elektret-faserbahnen und verfahren zu ihrer herstellung
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
US10343095B2 (en) * 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
KR102314307B1 (ko) * 2015-10-02 2021-10-20 도요보 가부시키가이샤 일렉트릿 및 일렉트릿 필터
US10639572B2 (en) 2016-01-07 2020-05-05 Donaldson Company, Inc. Styrene-acrylonitrile fine fibers, filter media, recirculation filters, and methods
ES2902633T3 (es) 2016-03-17 2022-03-29 Eurofilters Nv Fibra bicomponente con plásticos reciclados
WO2018052874A1 (en) 2016-09-16 2018-03-22 3M Innovative Properties Company Exhalation valve and respirator including same
EP3406780B1 (de) * 2017-05-22 2020-01-08 Axel Nickel Getemperter meltblown-vliesstoff mit hoher stauchhärte
WO2020261150A1 (en) * 2019-06-28 2020-12-30 3M Innovative Properties Company Core-sheath fibers, nonwoven fibrous web, and respirator including the same
CN110772889B (zh) * 2019-10-28 2021-09-24 南通大学 一种针刺/熔喷/纺粘复合过滤材料及其制备方法
CN111962286A (zh) * 2020-07-22 2020-11-20 阳信金峰生态纤维有限公司 一种改进的pp在熔喷布中的应用
CN113417076B (zh) * 2021-06-23 2022-07-22 海南欣龙无纺股份有限公司 一种艾草整理熔喷布及其制备方法和应用
CN113322577B (zh) * 2021-07-05 2023-07-21 吉祥三宝高科纺织有限公司 一种具有抗菌阻燃保暖功能的絮片及其制备方法
CN114806009B (zh) * 2022-04-02 2023-06-20 河南省驼人医疗科技有限公司 一种熔喷驻极体用驻极母粒及其制备方法与应用

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS497959B1 (de) * 1969-07-17 1974-02-23
US3959421A (en) * 1974-04-17 1976-05-25 Kimberly-Clark Corporation Method for rapid quenching of melt blown fibers
US4215682A (en) * 1978-02-06 1980-08-05 Minnesota Mining And Manufacturing Company Melt-blown fibrous electrets
AU565762B2 (en) * 1983-02-04 1987-09-24 Minnesota Mining And Manufacturing Company Method and apparatus for manufacturing an electret filter medium
US4536440A (en) * 1984-03-27 1985-08-20 Minnesota Mining And Manufacturing Company Molded fibrous filtration products
US4931230A (en) * 1986-05-08 1990-06-05 Minnesota Mining And Manufacturing Company Method for preparing radiation resistant polypropylene articles
US5099026A (en) * 1986-09-12 1992-03-24 Crater Davis H Fluorochemical oxazolidinones
US5025052A (en) * 1986-09-12 1991-06-18 Minnesota Mining And Manufacturing Company Fluorochemical oxazolidinones
US4950549A (en) * 1987-07-01 1990-08-21 Minnesota Mining And Manufacturing Company Polypropylene articles and method for preparing same
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)
JP2672329B2 (ja) * 1988-05-13 1997-11-05 東レ株式会社 エレクトレット材料
CA2037942A1 (en) * 1990-03-12 1991-09-13 Satoshi Matsuura Process for producing an electret, a film electret, and an electret filter
DE59410352D1 (de) * 1993-03-09 2004-03-11 Trevira Gmbh Elektretfasern mit verbesserter Ladungsstabilität, Verfahren zu ihrer Herstellung, und Textilmaterial enthaltend diese Elektretfasern
AU669420B2 (en) * 1993-03-26 1996-06-06 Minnesota Mining And Manufacturing Company Oily mist resistant electret filter media
KR100336012B1 (ko) * 1993-08-17 2002-10-11 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 일렉트릿필터매체를하전시키는방법
US5908598A (en) * 1995-08-14 1999-06-01 Minnesota Mining And Manufacturing Company Fibrous webs having enhanced electret properties
EP0829293B1 (de) * 1996-09-04 2004-06-23 AS Askju Herstellungsverfahren für ein Filtermaterial
US5817415A (en) * 1996-09-12 1998-10-06 E. I. Du Pont De Nemours And Company Meltblown ionomer microfibers and non-woven webs made therefrom for gas filters
DE19732995A1 (de) * 1997-07-31 1999-02-04 Clariant Gmbh Verwendung von Inter-Polyelektrolyt-Komplexen als Ladungssteuermittel
US5871836A (en) * 1997-08-27 1999-02-16 Airflo Europe N.V. Composite pleated fibrous structures containing split film fibers

Also Published As

Publication number Publication date
CN1272803A (zh) 2000-11-08
KR100519882B1 (ko) 2005-10-11
CZ20001180A3 (cs) 2000-09-13
RU2246979C2 (ru) 2005-02-27
EP1019174B1 (de) 2005-06-08
DE69830505T2 (de) 2006-03-23
AU739986B2 (en) 2001-10-25
CA2304284A1 (en) 1999-04-08
PL339655A1 (en) 2001-01-02
US6068799A (en) 2000-05-30
CN1154530C (zh) 2004-06-23
CZ295232B6 (cs) 2005-06-15
JP2003522300A (ja) 2003-07-22
AU6134898A (en) 1999-04-23
BR9812593A (pt) 2000-08-01
KR20010024376A (ko) 2001-03-26
ES2242272T3 (es) 2005-11-01
EP1019174A1 (de) 2000-07-19
WO1999016533A1 (en) 1999-04-08

Similar Documents

Publication Publication Date Title
DE69830505D1 (de) Methode zur herstellung von elektretartikelen und filter mit erhöhter ölnebelresistenz
DE69316647D1 (de) Filterelement und methode zur dessen herstellung
DE69710104D1 (de) Bindemittellösung auf Vinylidenfluorid-Basis und Zusammensetzung zur Herstellung von Elektroden
DE60021352D1 (de) Filter mit mehreren stufen mit filterelement zur abtrennung und koaleszenz von partikeln
DE69837024D1 (de) Keramisches Heizelement und Verfahren zur Herstellung dafür, und Glühkerze mit diesem keramisches Heizelement
DE69511571D1 (de) Verfahren zur herstellung von essbaren hüllen und daraus hergestellten zusammensetzungen
DE69613373T2 (de) Methode zur herstellung von schmierölen
DE69424763D1 (de) Verfahren zur Herstellung von fraktionierten Sojaproteinen und Verwendung desselben in Nahrungsmitteln
DE69709059T2 (de) Nahrungsmittelhülle mit verbesserten Abschälungseigenschaften und Verfahren zur Herstellung davon
DE69512772T2 (de) Methode zur kontrolle der dichte von an trägern gebundenen liganden und danach hergestellte produkte.
DE69511225T2 (de) Festelektrolytkondensator mit wärmebeständigem Polyanilin und Verfahren zur Herstellung desselben
DE19882526T1 (de) Kohlenstoffheizelement und Verfahren zur Herstellung desselben
DE69611034T2 (de) Verfahren und Vorrichtung zur Herstellung von extrudierten und gekochten Nahrungsmitteln
DE69309632D1 (de) Fritiertes Nahrungsmittel und Verfahren zur Herstellung
DE69728113D1 (de) Negativer widerstand des molekulardispersionstyps und verfahren zur herstellung
DE69632561D1 (de) Verfahren zur Herstellung von fraktionierten Sojaproteinen und Verwendung derselben in Nahrungsmitteln
DE69700351T2 (de) Verfahren zur Herstellung von Thermistoren und Werkstoff dafür
DE69514473D1 (de) Methode zur Darstellung von Arylen-Vinylen-Polymeren und diese enthaltende elektrolumineszente Vorrichtung
DE69717196D1 (de) Fluidfilterelement und Verfahren zur Herstellung
DE69835678D1 (de) Polymere und verfahren zur herstellung von polymeren
DE69611900D1 (de) Differentialgetriebe und Methode zur Herstellung der dafür verwendeten Nockenscheiben
DE69930743D1 (de) Faltenfilter und verfahren zur seiner herstellung
DE69927455D1 (de) PTC Heizelement und Verfahren zur Herstellung
DE69842119D1 (de) Methode zur herstellung von canine interleukin 18
DE59700696D1 (de) Verfahren und zwischenprodukte zur herstellung von pyridyl-4-fluoranilinen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee