[go: up one dir, main page]

FI906371A7 - Förfarande och anordning för dragning av film - Google Patents

Förfarande och anordning för dragning av film Download PDF

Info

Publication number
FI906371A7
FI906371A7 FI906371A FI906371A FI906371A7 FI 906371 A7 FI906371 A7 FI 906371A7 FI 906371 A FI906371 A FI 906371A FI 906371 A FI906371 A FI 906371A FI 906371 A7 FI906371 A7 FI 906371A7
Authority
FI
Finland
Prior art keywords
drawing film
film
Prior art date
Application number
FI906371A
Other languages
English (en)
Finnish (fi)
Other versions
FI906371A0 (fi
Inventor
Jr John Joseph Keegan
William John Hommes
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of FI906371A0 publication Critical patent/FI906371A0/fi
Publication of FI906371A7 publication Critical patent/FI906371A7/sv

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B29C55/12Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
    • B29C55/16Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial simultaneously
    • B29C55/165Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/20Edge clamps
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/16Presence of ethen-propene or ethene-propene-diene copolymers
    • C09J2423/166Presence of ethen-propene or ethene-propene-diene copolymers in the substrate

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Vehicle Body Suspensions (AREA)
  • Liquid Crystal (AREA)
  • Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
  • Prostheses (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Saccharide Compounds (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Non-Mechanical Conveyors (AREA)
  • Advancing Webs (AREA)
  • Linear Motors (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
FI906371A 1988-06-22 1989-05-18 Förfarande och anordning för dragning av film FI906371A7 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/209,910 US5051225A (en) 1988-06-22 1988-06-22 Method of drawing plastic film in a tenter frame
PCT/US1989/002093 WO1989012543A1 (en) 1988-06-22 1989-05-18 Method and apparatus for drawing film

Publications (2)

Publication Number Publication Date
FI906371A0 FI906371A0 (fi) 1990-12-21
FI906371A7 true FI906371A7 (sv) 1990-12-21

Family

ID=22780824

Family Applications (1)

Application Number Title Priority Date Filing Date
FI906371A FI906371A7 (sv) 1988-06-22 1989-05-18 Förfarande och anordning för dragning av film

Country Status (14)

Country Link
US (1) US5051225A (sv)
EP (1) EP0422035B1 (sv)
JP (1) JP2622420B2 (sv)
KR (1) KR920005555B1 (sv)
CN (1) CN1023453C (sv)
AT (1) ATE133894T1 (sv)
AU (1) AU632752B2 (sv)
BR (1) BR8907501A (sv)
CA (1) CA1332492C (sv)
DE (1) DE68925639T2 (sv)
DK (1) DK304790A (sv)
FI (1) FI906371A7 (sv)
NO (1) NO905562L (sv)
WO (1) WO1989012543A1 (sv)

Families Citing this family (76)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5429785A (en) * 1994-03-01 1995-07-04 E. I. Du Pont De Nemours And Company Method of making biaxially oriented thermoplastic films
DE4427604C2 (de) * 1994-08-04 1996-07-11 Krauss Maffei Ag Verfahren zum Herstellen von gereckten Kunststofffolien
DE4441020C1 (de) * 1994-11-17 1996-05-23 Brueckner Maschbau Stoßdämpfervorrichtung für Laufwagen insbesondere für Folienreckanlagen
DE29520879U1 (de) 1995-02-03 1996-04-11 Krauss-Maffei AG, 80997 München Synchron-Linearmotor
DE19510141C1 (de) * 1995-03-21 1996-08-14 Brueckner Maschbau Transportvorrichtung für eine bewegte Materialbahn, insbesondere eine Reckanlage für Kunststoffolien-Bahnen
DE19510281C1 (de) * 1995-03-21 1995-12-07 Brueckner Maschbau Transportvorrichtung für eine bewegte Materialbahn, insbesondere eine Reckanlage für Kunststoff-Folienbahnen
US5885501A (en) * 1997-06-24 1999-03-23 E. I. Du Pont De Nemours And Company Process for preparing dimensionally stabilized biaxially stretched thermoplastic film
US6279728B1 (en) * 1998-07-20 2001-08-28 Norbert G Jung Electro-magnetic conveyor
US6797375B1 (en) 1998-11-12 2004-09-28 3M Innovative Properties Company Oriented polypropylene films for adhesive tape
US6303067B1 (en) 1998-11-13 2001-10-16 3M Innovative Properties Company Method of stretching films according to an overbias or overstretch stretch profile
US6358457B1 (en) 1998-11-13 2002-03-19 3M Innovative Properties Company Method of stretching films according to an overbias or overstretch profile
US6630231B2 (en) * 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US6110588A (en) 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
US6331343B1 (en) 1999-05-07 2001-12-18 3M Innovative Properties Company Films having a fibrillated surface and method of making
US6586073B2 (en) 1999-05-07 2003-07-01 3M Innovative Properties Company Films having a microfibrillated surface and method of making
US20030207105A1 (en) * 1999-06-16 2003-11-06 3M Innovative Properties Company Backing for adhesive tape and such tape
US6451425B1 (en) 1999-06-16 2002-09-17 3M Innovative Properties Company Adhesive tape backing
US7037461B1 (en) * 1999-12-21 2006-05-02 3M Innovative Properties Company Method of stretching film
US20030211281A1 (en) * 2000-06-14 2003-11-13 Carsten Franke Laminate and its use
US6635334B1 (en) 2000-08-08 2003-10-21 3M Innovative Properties Company Cloth-like polymeric films
US6420024B1 (en) 2000-12-21 2002-07-16 3M Innovative Properties Company Charged microfibers, microfibrillated articles and use thereof
US6680114B2 (en) 2001-05-15 2004-01-20 3M Innovative Properties Company Fibrous films and articles from microlayer substrates
US6645618B2 (en) 2001-06-15 2003-11-11 3M Innovative Properties Company Aliphatic polyester microfibers, microfibrillated articles and use thereof
DE10160173A1 (de) 2001-12-07 2003-06-18 Seeber Ag & Co Mehrschicht-Formteil, insbesondere Innenraum-Teil für ein Kraftfahrzeug, sowie Verfahren zur Herstellung des Formteils
US6890649B2 (en) * 2002-04-26 2005-05-10 3M Innovative Properties Company Aliphatic polyester microfibers, microfibrillated articles and use thereof
WO2003105324A1 (en) * 2002-06-05 2003-12-18 Jacobs Automation Llc Controlled motion system
US7037100B2 (en) * 2002-10-09 2006-05-02 3M Innovative Properties Company Apparatus for flame-perforating films and methods of flame-perforating films
US6965474B2 (en) * 2003-02-12 2005-11-15 3M Innovative Properties Company Polymeric optical film
US7132065B2 (en) * 2003-02-12 2006-11-07 3M Innovative Properties Company Process for manufacturing polymeric optical film
US7405784B2 (en) 2003-02-12 2008-07-29 3M Innovative Properties Company Compensators for liquid crystal displays with biaxially stretched single film with crystallization modifier
US7138169B2 (en) 2003-03-05 2006-11-21 3M Innovative Properties Company Cloth-like polymeric film with directional tear
DE10352439A1 (de) * 2003-11-10 2005-06-09 Mitsubishi Polyester Film Gmbh Verfahren zur Herstellung einer heißsiegelbaren und peelfähigen Polysterfolie
DE10352430A1 (de) * 2003-11-10 2005-06-09 Mitsubishi Polyester Film Gmbh Peelfähige Polyesterfolie mit verbesserter Sauerstoffbarriere, Verfahren zu ihrer Herstellung und ihre Verwendung
DE10352432A1 (de) * 2003-11-10 2005-06-09 Mitsubishi Polyester Film Gmbh Weiße, heißsiegelbare, peelfähige Polyesterfolie, Verfahren zu ihrer Herstellung und ihre Verwendung
DE10352440A1 (de) * 2003-11-10 2005-06-09 Mitsubishi Polyester Film Gmbh Verfahren zur Herstellung einer coextrudierten, peelfähigen Polyesterfolie
DE10352431A1 (de) * 2003-11-10 2005-06-09 Mitsubishi Polyester Film Gmbh Peelfähige Polyesterfolie mit selbsttätiger Entlüftung, Verfahren zu ihrer Herstellung und ihre Verwendung
WO2005054347A1 (en) * 2003-11-24 2005-06-16 3M Innovative Properties Company Biaxially oriented polypropylene-based adhesive tape film backings
US7897078B2 (en) * 2004-03-09 2011-03-01 3M Innovative Properties Company Methods of manufacturing a stretched mechanical fastening web laminate
EP1757651A1 (en) * 2005-08-25 2007-02-28 Dupont Teijin Films U.S Limited Partnership Bi-axially stretched breathable film, process for making the same and use thereof
US8795565B2 (en) 2006-02-21 2014-08-05 Celgard Llc Biaxially oriented microporous membrane
US20070228586A1 (en) * 2006-03-31 2007-10-04 Merrill William W Process for making an optical film
US20070231548A1 (en) * 2006-03-31 2007-10-04 Merrill William W Process for making an optical film and rolls of optical film
US20080083999A1 (en) * 2006-10-06 2008-04-10 3M Innovative Properties Company Process for making an optical film
US20080083998A1 (en) * 2006-10-06 2008-04-10 3M Innovative Properties Company Multiple draw gap length orientation process
US20080085383A1 (en) * 2006-10-06 2008-04-10 3M Innovative Properties Company Processes for improved optical films
US20080085481A1 (en) * 2006-10-06 2008-04-10 3M Innovative Properties Company Rolls of optical film
FR2922810B1 (fr) * 2007-10-24 2013-05-31 Darlet Marchante Technologie Procede d'etirage d'un film en matiere synthetique se presentant sous la forme d'une bande allongee.
FR2924048B1 (fr) * 2007-11-28 2013-03-08 Darlet Marchante Technologie Procede d'etirage d'un film en matiere synthetique
DE102007057329A1 (de) * 2007-11-28 2009-06-04 Brückner Maschinenbau GmbH & Co. KG Reckanlage
JP2012500141A (ja) 2008-08-19 2012-01-05 スリーエム イノベイティブ プロパティズ カンパニー 多層光学物品
US9032880B2 (en) 2009-01-23 2015-05-19 Magnemotion, Inc. Transport system powered by short block linear synchronous motors and switching mechanism
US8616134B2 (en) 2009-01-23 2013-12-31 Magnemotion, Inc. Transport system powered by short block linear synchronous motors
US9156211B2 (en) * 2009-06-12 2015-10-13 Illinois Tool Works Inc. Apparatus and method for manufacturing a load bearing fabric surface
US20110082327A1 (en) * 2009-10-07 2011-04-07 Manning Miles Goldsmith Saline membranous coupling mechanism for electromagnetic and piezoelectric round window direct drive systems for hearing amplification
US20110223486A1 (en) 2010-03-12 2011-09-15 Xiaomin Zhang Biaxially oriented porous membranes, composites, and methods of manufacture and use
ITMI20112205A1 (it) 2011-12-02 2013-06-03 Irplast Spa Film plastici
ITMI20112204A1 (it) 2011-12-02 2013-06-03 Irplast Spa Film plastici
DE102013203066A1 (de) * 2013-02-25 2014-08-28 Robert Bosch Gmbh Transportvorrichtung und Verfahren zum Betrieb der Transportvorrichtung
DE102013011965A1 (de) 2013-07-18 2015-01-22 Brückner Maschinenbau GmbH & Co. KG Linearmotorgetriebene Transportanlage, insbesondere Reckanlage
US9802507B2 (en) 2013-09-21 2017-10-31 Magnemotion, Inc. Linear motor transport for packaging and other uses
DE102013017011A1 (de) 2013-10-14 2015-04-30 Brückner Maschinenbau GmbH & Co. KG Kluppen-Transporteinheit
WO2015100319A1 (en) 2013-12-26 2015-07-02 3M Innovative Properties Company Adhesive tapes and methods for making
EA036169B1 (ru) 2014-05-13 2020-10-09 Басф Се Способ получения фосфорсодержащих циангидринов
ES2718031T3 (es) 2014-05-30 2019-06-27 Irplast Spa Uso de películas plásticas para etiquetas
DE102014011513A1 (de) 2014-07-31 2016-02-04 Brückner Maschinenbau GmbH & Co. KG Kluppe mit Kniehebel-Anordnung
DE102014013901A1 (de) 2014-09-18 2016-03-24 Brückner Maschinenbau GmbH & Co. KG Linearmotorangetriebene Simultan-Reckanlage
MX370224B (es) 2014-12-23 2019-12-06 3M Innovative Properties Co Hojas rasgables a mano y metodo para fabricarlas.
EP3091047A1 (en) 2015-05-07 2016-11-09 Dupont Teijin Films U.S Limited Partnership Polyester film with electrical insulation and heat conduction properties
KR102045137B1 (ko) 2015-05-29 2019-11-14 가부시키가이샤 야스카와덴키 반송 시스템 및 반송 설비 구축 방법
ITUB20152446A1 (it) 2015-07-23 2017-01-23 Irplast Spa Film poliolefinici
WO2018213825A1 (en) 2017-05-19 2018-11-22 Massachusetts Institute Of Technology Transport system having a magnetically levitated transportation stage
CN107718608A (zh) * 2017-07-17 2018-02-23 泉州嘉德利电子材料有限公司 一种耐高温电容器用聚丙烯薄膜的制备方法
WO2019111963A1 (ja) * 2017-12-06 2019-06-13 株式会社京都製作所 リニア搬送装置
EP3714851A1 (en) 2019-03-29 2020-09-30 3M Innovative Properties Company Diaper fastening tab, diaper and method of making the same
EP3741717A1 (en) * 2019-05-20 2020-11-25 Tetra Laval Holdings & Finance S.A. Conveying device, packaging machine having such a conveying device and method of cooling such a conveying device
DE102021119557A1 (de) 2021-07-28 2023-02-02 Brückner Maschinenbau GmbH & Co. KG Einführeinrichtung zum automatischen Einführen einer Materialbahn in eine Reckanlage, Anlage sowie Verfahren

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2698967A (en) * 1951-01-19 1955-01-11 American Viscose Corp Production of regenerated cellulose films and sheets
NL253923A (sv) * 1959-07-25
US3254148A (en) * 1963-01-10 1966-05-31 Goodyear Tire & Rubber Film stretching process
US3261903A (en) * 1963-07-02 1966-07-19 Goodyear Tire & Rubber Method and apparatus for film stretching
DE1504242B2 (de) * 1963-08-21 1971-01-28 Farbwerke Hoechst AG, vorm Meister Lucius & Brumng, 6000 Frankfurt Vorrichtung zum gleichzeitigen Recken in Langs und Querrichtung von erwärmten Folienbahnen aus thermoplastischen Kunst stoffen
US3932919A (en) * 1970-11-26 1976-01-20 Erwin Kampf Maschinenfabrik Improved gripper return means for a machine for simultaneously biaxially stretching thermoplastic film
FR2147876B1 (sv) * 1971-08-05 1974-03-29 Cellophane Sa
JPS4838779A (sv) * 1971-09-14 1973-06-07
US3803466A (en) * 1972-02-28 1974-04-09 Rockwell International Corp Linear motor propulsion system
DE2356743C3 (de) * 1973-11-14 1978-06-08 Hoechst Ag, 6000 Frankfurt Verfahren und Vorrichtung zur Verbesserung der Griffsicherheit von Spannkluppen zur führenden Halterung von Folienbahnrändern während eines Querstreckprozesses
US4081723A (en) * 1975-05-02 1978-03-28 Veb Polygraph Leipzog Kombinat Fur Polygraphische Maschinen Und Ausrustungen Printing machine
FR2317076A2 (fr) * 1975-07-07 1977-02-04 Cellophane Sa Dispositif ameliore d'etirage des films de matiere plastique
DE2813253C2 (de) * 1978-03-28 1982-12-16 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum Anfahren eines fahrweggebundenen elektrischen Triebfahrzeuges mit einem eisenlosen synchronen Linearmotor
US4675582A (en) * 1985-12-24 1987-06-23 E. I. Du Pont De Nemours And Company System useful for controlling multiple synchronous secondaries of a linear motor along an elongated path
AU593677B2 (en) * 1987-06-17 1990-02-15 E.I. Du Pont De Nemours And Company System for using synchronous secondaries of a linear motor to biaxially draw plastic films
US4825111A (en) * 1987-11-02 1989-04-25 E. I. Du Pont De Nemours And Company Linear motor propulsion system
JP5133590B2 (ja) 2007-04-27 2013-01-30 アンリツ産機システム株式会社 X線異物検出装置

Also Published As

Publication number Publication date
FI906371A0 (fi) 1990-12-21
AU3738089A (en) 1990-01-12
CN1042110A (zh) 1990-05-16
JP2622420B2 (ja) 1997-06-18
EP0422035A4 (en) 1992-11-04
KR920005555B1 (ko) 1992-07-06
CA1332492C (en) 1994-10-18
DK304790A (da) 1991-02-20
EP0422035B1 (en) 1996-02-07
KR900701508A (ko) 1990-12-03
JPH03505310A (ja) 1991-11-21
EP0422035A1 (en) 1991-04-17
WO1989012543A1 (en) 1989-12-28
DE68925639D1 (de) 1996-03-21
DE68925639T2 (de) 1996-10-17
DK304790D0 (da) 1990-12-21
AU632752B2 (en) 1993-01-14
US5051225A (en) 1991-09-24
BR8907501A (pt) 1991-07-30
CN1023453C (zh) 1994-01-12
NO905562D0 (no) 1990-12-21
ATE133894T1 (de) 1996-02-15
NO905562L (no) 1991-02-19

Similar Documents

Publication Publication Date Title
FI906371A7 (sv) Förfarande och anordning för dragning av film
PT88418A (pt) Method and apparatus for preparing textured apertured film
DE68928726D1 (de) Bilderausrichtungsverfahren und -gerät
KR900005641A (ko) 박막 형성장치 및 방법
FI905032A7 (sv) Förfarande och anordning för förädlande av organiskt material
DE68926825D1 (de) Druckapparat und -verfahren
FI922064A7 (sv) Förfarande och anordning för extrahering av slutna patroner
FI896196A7 (sv) Förfarande och anordning för beredning av emulsioner
FI881652A7 (sv) Isoelektriskt fokuseringsförfarande samt anordning för att utföra förfarandet
FI912334A7 (sv) Kondomartiklar samt anordning och förfarande för framställning och anv ändning av desamma
FI912078A7 (sv) Förfarande och anordning för mätning av massaströmning
FI955980A0 (sv) Förfarande och anordning för omordning
FI98149B (sv) Förfarande och anordning för fraktionering av suspensioner
FI890216L (sv) Anordning och förfarande för behandling av trävaror
KR900007586A (ko) 타이어 성형 방법 및 그 장치
KR900700401A (ko) 유리 시이트를 탬퍼링하기 위한 장치 및 방법
DE69034121D1 (de) Aufzeichnungsvorrichtung und -verfahren
KR890700405A (ko) 피복장치와 방법
FI914229A7 (sv) Förfarande och anordning för stabilisering av slam
FI95997B (sv) Förfarande och apparat för bildande av absorptionsmassor
FI890363A7 (sv) Anordning och förfarande för ång-vätskekontakt
FI904706A7 (sv) Agglomerationsprocess och för denna avsedd anordning
FI91048B (sv) Förfarande och anordning för att tillverka fiberplattor
FI893409L (sv) Förfarande och apparat för avskiljande och isärhållning av olika slags lösningsmedel
KR900700640A (ko) 일렉트로-슬랙 주조 장치 및 방법

Legal Events

Date Code Title Description
FA Application withdrawn [patent]

Owner name: E.I. DU PONT DE NEMOURS AND COMPANY