CH489625A - Endlose synthetische Filamente aus Acrylnitrilpolymeren und kontinuierliches Verfahren zu ihrer Herstellung sowie Vorrichtung zur Ausführung des Verfahrens und Verwendung der Filamente zur Herstellung von nicht textilen Flächengebilden - Google Patents

Endlose synthetische Filamente aus Acrylnitrilpolymeren und kontinuierliches Verfahren zu ihrer Herstellung sowie Vorrichtung zur Ausführung des Verfahrens und Verwendung der Filamente zur Herstellung von nicht textilen Flächengebilden

Info

Publication number
CH489625A
CH489625A CH713265A CH713265A CH489625A CH 489625 A CH489625 A CH 489625A CH 713265 A CH713265 A CH 713265A CH 713265 A CH713265 A CH 713265A CH 489625 A CH489625 A CH 489625A
Authority
CH
Switzerland
Prior art keywords
production
filaments
carrying
well
textile fabrics
Prior art date
Application number
CH713265A
Other languages
English (en)
Original Assignee
Monsanto 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 Monsanto Co filed Critical Monsanto Co
Publication of CH489625A publication Critical patent/CH489625A/de

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00Special paper or cardboard not otherwise provided for
    • D21H5/12Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
    • D21H5/20Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres
    • D21H5/205Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of organic non-cellulosic fibres too short for spinning, with or without cellulose fibres acrylic fibres
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05Filamentary, e.g. strands
    • 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
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/345Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00Spinnerette packs; Cleaning thereof
    • D01D4/02Spinnerettes
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • D01D5/098Melt spinning methods with simultaneous stretching
    • D01D5/0985Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/11Flash-spinning
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/24Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D01D5/247Discontinuous hollow structure or microporous structure
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/42Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments
    • D01D5/423Formation of filaments, threads, or the like by cutting films into narrow ribbons or filaments or by fibrillation of films or filaments by fibrillation of films or filaments
    • 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
    • D01F6/18Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • 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
    • D01F6/28Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/38Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds comprising unsaturated nitriles as the major constituent
    • 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
    • D01F6/44Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/54Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polymers of unsaturated nitriles
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H13/00Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10Organic non-cellulose fibres
    • D21H13/12Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/18Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylonitriles
    • 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
    • Y10S264/47Processes of splitting film, webs or sheets

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Filaments (AREA)
  • Paper (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
CH713265A 1964-05-21 1965-05-21 Endlose synthetische Filamente aus Acrylnitrilpolymeren und kontinuierliches Verfahren zu ihrer Herstellung sowie Vorrichtung zur Ausführung des Verfahrens und Verwendung der Filamente zur Herstellung von nicht textilen Flächengebilden CH489625A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US369225A US3402231A (en) 1964-05-21 1964-05-21 Process for preparing synthetic fibers for paper products
US385177A US3309734A (en) 1964-05-21 1964-07-27 Spinnerette

Publications (1)

Publication Number Publication Date
CH489625A true CH489625A (de) 1970-04-30

Family

ID=27004501

Family Applications (1)

Application Number Title Priority Date Filing Date
CH713265A CH489625A (de) 1964-05-21 1965-05-21 Endlose synthetische Filamente aus Acrylnitrilpolymeren und kontinuierliches Verfahren zu ihrer Herstellung sowie Vorrichtung zur Ausführung des Verfahrens und Verwendung der Filamente zur Herstellung von nicht textilen Flächengebilden

Country Status (8)

Country Link
US (2) US3402231A (de)
BE (1) BE664276A (de)
CH (1) CH489625A (de)
DE (1) DE1494690A1 (de)
GB (1) GB1090478A (de)
IL (1) IL23579A (de)
LU (1) LU48651A1 (de)
NL (1) NL6506516A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116024673A (zh) * 2022-11-28 2023-04-28 江苏诚业化纤科技有限公司 一种新型细旦多孔纤维锦纶生产工艺

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1469501A1 (de) * 1964-12-24 1969-01-23 Glanzstoff Ag Verfahren zur Herstellung von filzartigen Flaechengebilden
US3417426A (en) * 1965-09-17 1968-12-24 Petro Tex Chem Corp Apparatus for separating a polymer from a solvent
US3543332A (en) * 1966-09-21 1970-12-01 Celanese Corp Apparatus for producing fibrous structures
US3774387A (en) * 1970-09-11 1973-11-27 Du Pont Hydrophilic textile products
JPS497095B1 (de) * 1970-09-25 1974-02-18
JPS5116533B1 (de) * 1971-06-01 1976-05-25
BE787033A (de) * 1971-08-06 1973-02-01 Solvay
BE789808A (fr) * 1971-10-12 1973-04-06 Crown Zellerbach Int Inc Pate a papier de polyolefine ayant de meilleures proprietes d'egouttageet procede pour la produire
BE790107A (fr) * 1971-10-14 1973-04-13 Du Pont Compositions de polymeres d'acrylonitrile faconnables a l'etat fondu, procede pour leur preparation, et filaments et pellicules produits a partir d'elles
DE2254898C3 (de) * 1971-11-22 1985-08-29 Mitsubishi Chemical Industries Ltd., Tokio/Tokyo Verfahren zur Herstellung von Fasern und Verwendung dieser Fasern
US4054625A (en) * 1972-08-30 1977-10-18 Crown Zellerbach Corporation Process for making fibers
US4094948A (en) * 1972-10-02 1978-06-13 E. I. Du Pont De Nemours And Company Improved acrylonitrile polymer spinning process
US3920507A (en) * 1972-10-05 1975-11-18 Crown Zellerbach Corp Process of making polyolefin fibers
NL171825C (nl) * 1973-01-22 1983-05-16 Stamicarbon Werkwijze voor het bereiden van polymeervezels.
JPS5014869A (de) * 1973-06-18 1975-02-17
US4256111A (en) * 1973-10-01 1981-03-17 Kimberly-Clark Corporation Filaments of chemically modified cellulose fibers and webs and products formed therefrom
US3997647A (en) * 1973-10-01 1976-12-14 Kimberly-Clark Corporation Method of making filaments and webs of chemically modified cellulose fibers
IT1001664B (it) * 1973-11-08 1976-04-30 Sir Soc Italiana Resine Spa Prodotto microfibroso adatto ad es sere impiegato nella produzione di carte sintetiche e relativo procedi mento di ppreparazione
US3942921A (en) * 1974-06-12 1976-03-09 The Quaker Oats Company Die and air nozzle
US4271056A (en) * 1979-09-17 1981-06-02 American Cyanamid Company Hydrophilic acrylonitrile polymers for melt-spinning
US4425126A (en) 1979-12-28 1984-01-10 Johnson & Johnson Baby Products Company Fibrous material and method of making the same using thermoplastic synthetic wood pulp fibers
US4392861A (en) * 1980-10-14 1983-07-12 Johnson & Johnson Baby Products Company Two-ply fibrous facing material
US4582473A (en) * 1984-06-25 1986-04-15 Usm Corporation Polymer pelletizer
US4692965A (en) * 1985-03-25 1987-09-15 Stephenson Fred W Shrimp processing method and device
US4929502A (en) * 1986-10-14 1990-05-29 American Cyanamid Company Fibrillated fibers and articles made therefrom
US5219501A (en) * 1990-07-11 1993-06-15 Korea Institute Of Science And Technology Process for the production of acrylic short fibers without spinning
US5589264A (en) * 1992-10-01 1996-12-31 Korea Institute Of Science And Technology Unspun acrylic staple fibers
GB2370248A (en) * 1999-12-10 2002-06-26 Seitzschenk Filtersystems Gmbh Production of filtration-active fibres
DE19959532C1 (de) * 1999-12-10 2001-10-04 Seitz Schenk Filtersystems Gmb Verfahren und Vorrichtung zur Herstellung von filtrationsaktiven Fasern
CN103290500B (zh) * 2013-07-04 2016-02-24 苏州祺尚纺织有限公司 一种熔融纺织结构
ES2547755B1 (es) * 2015-06-25 2016-06-16 Manuel Torres Martínez Cabezal de extrusión para la generación de filamentos, instalación y procedimiento de extrusión que emplean dicho cabezal de extrusión
WO2018172744A1 (en) * 2017-03-24 2018-09-27 British American Tobacco South Africa Proprietary Limited Methods and equipment for forming tubes of fibrous material
CN108103593B (zh) * 2018-02-09 2020-07-24 陕西天策新材料科技有限公司 一种制备中间相沥青基碳纤维原丝的喷丝板及方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US204227A (en) * 1878-05-28 John w
US2437263A (en) * 1948-03-09 Fred w
US1419090A (en) * 1921-08-12 1922-06-06 Western Electric Co Covering machine
NL30268C (de) * 1929-11-07
NL41606C (de) * 1934-12-08
US2075867A (en) * 1935-01-16 1937-04-06 Sampel Henri Cement gun nozzle
US2286922A (en) * 1939-04-08 1942-06-16 Us Rubber Co Extrusion machine
US2585499A (en) * 1948-07-29 1952-02-12 Du Pont Production of shaped articles from acrylonitrile polymers
US2585444A (en) * 1948-07-29 1952-02-12 Du Pont Preparation of shaped articles from acrylonitrile polymers
US2626214A (en) * 1949-06-14 1953-01-20 C H Dexter & Sons Inc Paper from long synthetic fibers and partially water soluble sodium carboxymethylcellulose and method
US2689199A (en) * 1950-06-27 1954-09-14 Mario R Pesce Nonwoven fabrics
US2776119A (en) * 1953-04-22 1957-01-01 Emulsol Egg Products Corp Apparatus for producing dressing
US2810646A (en) * 1953-09-17 1957-10-22 American Cyanamid Co Water-laid webs comprising water-fibrillated, wet-spun filaments of an acrylonitrile polymer and method of producing them
US2840447A (en) * 1954-04-28 1958-06-24 Du Pont Process for preparing filaments from dispersions containing graft polymers obtained from ethylenically unsaturated monomers
US2875473A (en) * 1955-08-10 1959-03-03 Rayonier Inc Process of forming solid particulate hydroxyethoxycellulose
BE566286A (de) * 1957-04-02
US3208829A (en) * 1960-09-28 1965-09-28 American Cyanamid Co Apparatus for the segmentation of polymer solutions
BE593920A (de) * 1959-08-10
US3242120A (en) * 1960-03-22 1966-03-22 Du Pont Self-supporting gel shaped structures
US3147955A (en) * 1960-08-15 1964-09-08 Union Carbide Corp Apparatus for dispersing finely-divided solids in liquids
US3110642A (en) * 1960-09-09 1963-11-12 Eastman Kodak Co Method of producing a fibrous product from extruded organic thermoplastic filaments
US3042970A (en) * 1961-08-14 1962-07-10 American Cyanamid Co Particulation of polymer by extruding a solution thereof into a liquid stream of fluid
US3081519A (en) * 1962-01-31 1963-03-19 Fibrillated strand
US3152362A (en) * 1962-08-22 1964-10-13 Monsanto Co Spinning apparatus
US3287304A (en) * 1963-01-03 1966-11-22 Asahi Chemical Ind Acrylonitrile copolymers and compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116024673A (zh) * 2022-11-28 2023-04-28 江苏诚业化纤科技有限公司 一种新型细旦多孔纤维锦纶生产工艺

Also Published As

Publication number Publication date
NL6506516A (de) 1965-11-22
US3402231A (en) 1968-09-17
BE664276A (de) 1965-11-22
GB1090478A (en) 1967-11-08
DE1494690A1 (de) 1970-03-26
LU48651A1 (de) 1965-11-22
IL23579A (en) 1969-01-29
US3309734A (en) 1967-03-21

Similar Documents

Publication Publication Date Title
CH489625A (de) Endlose synthetische Filamente aus Acrylnitrilpolymeren und kontinuierliches Verfahren zu ihrer Herstellung sowie Vorrichtung zur Ausführung des Verfahrens und Verwendung der Filamente zur Herstellung von nicht textilen Flächengebilden
AT364066B (de) Verfahren und vorrichtung zur herstellung von fasern aus thermoplastischem material
CH437193A (de) Verfahren zur Herstellung von nicht gewebten Flächengebilden aus Endlosfasergarn
CH370383A (de) Verfahren zur Herstellung von perforierten Vliesstoffbahnen aus Textilfasern
CH469106A (de) Verfahren zur Herstellung von Fasern aus thermoplastischem Kunststoff
AT366016B (de) Verfahren und vorrichtung zur herstellung von fasern aus thermoplastischem material, insbesonde-re von glasfasern
CH396620A (de) Verfahren zur Herstellung von flächigen Gebilden aus fasrigem Material aus synthetischen Polymeren
CH412190A (de) Textilmaterial, Verfahren zu dessen Herstellung und Vorrichtung zur Durchführung des Verfahrens
CH424075A (de) Verfahren zur Herstellung von Fasern durch Schlitzen einess Bandes aus thermoplastischem Material und Vorrichtung zur Durchführung des Verfahrens
AT274274B (de) Verfahren zur Herstellung von Vliesbahnen aus Fasern aus thermoplastischen Stoffen und Vorrichtung zu seiner Durchführung
CH468483A (de) Endlosfaserbauschgarn aus synthetischem Polymer, Verfahren zu seiner Herstellung und Vorrichtung zur Ausübung des Verfahrens
CH461701A (de) Verfahren zur Herstellung von gekräuseltem Garn aus endlosen Fäden und Vorrichtung zur Durchführung des Verfahrens
CH465128A (de) Bandförmiges mattiertes Monofilament aus synthetischem faserbildendem Material und Verfahren zu dessen Herstellung, sowie Spinndüse zur Ausführung des Verfahrens
CH379971A (de) Verfahren zur Herstellung von Seilen aus endlosen synthetischen Kunststoffdrähten
CH513771A (de) Verfahren zur Herstellung von Bändern aus längsgerichteten Kohlenstoffasern
AT333935B (de) Verfahren zur herstellung von antistatischen polyamidfasern
CH428083A (de) Verfahren zur Herstellung von Fasern aus einem schmelzbaren, faserbildenden Material, Vorrichtung zur Ausführung des Verfahrens und Anwendung des Verfahrens
CH452780A (de) Verfahren zur Herstellung von Faserbändern aus kontinuierlichen Faserwergen
CH475400A (de) Verfahren zur Herstellung von verfestigten, randperforierten Nonwovens sowie deren Verwendung als Grundfläche für Tuftingteppiche
CH553289A (de) Verfahren zur herstellung von faserbahnen und einrichtung zu dessen ausfuehrung.
CH519048A (de) Verfahren zur Herstellung von Vliesen aus endlosen Fäden
AT334312B (de) Verfahren zur herstellung von trockengesponnenen faden und faserbandern aus acrylnitrilpolymerisaten
AT304752B (de) Verfahren zur Herstellung von hochschrumpfenden Fäden, Fadenbündeln und Fasern aus Acrylnitril-Polymerisaten
CH525300A (de) Verfahren zur kontinuierlichen Herstellung von Fasern und Vorrichtung zur Durchführung des Verfahrens
CH457698A (de) Verfahren und Vorrichtung zur Herstellung von Filamenten aus faserbildendem synthetischem Polymer

Legal Events

Date Code Title Description
PL Patent ceased