GB535186A - Improvements in or relating to the production of artificial filaments, films and other structures by extrusion of molten or plastic compositions - Google Patents

Improvements in or relating to the production of artificial filaments, films and other structures by extrusion of molten or plastic compositions

Info

Publication number
GB535186A
GB535186A GB26833/39A GB2683339A GB535186A GB 535186 A GB535186 A GB 535186A GB 26833/39 A GB26833/39 A GB 26833/39A GB 2683339 A GB2683339 A GB 2683339A GB 535186 A GB535186 A GB 535186A
Authority
GB
United Kingdom
Prior art keywords
composition
pressure
molten
pump
bubbles
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
Application number
GB26833/39A
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Publication of GB535186A publication Critical patent/GB535186A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/02—Conditioning or physical treatment of the material to be shaped by heating
    • B29B13/022—Melting the material to be shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B29C48/914—Cooling of flat articles, e.g. using specially adapted supporting means cooling drums
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/04—Melting filament-forming substances
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/06—Feeding liquid to the spinning head
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/103—De-aerating
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/04—Dry spinning methods
    • 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
    • Y10S65/00—Glass manufacturing
    • Y10S65/04—Electric heat

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

535,186. Artificial filaments, films &c. DU PONT DE NEMOURS & CO., E. I. Sept. 29, 1939, No. 26883. Convention date, Sept. 29, 1938. [Class 2 (ii)] [Also in Group XXVI] Artificial filaments, yarns, ribbons, sheets, and other structures are made by subjecting a molten composition, e.g. a polyamide composition, which is liable to develop bubbles under the conditions of extrusion, to a pressure sufficient to eliminate any bubbles, forwarding the bubble-free composition at a constant rate to an extrusion device and extruding the bubble-free composition, preferably while maintaining it under sufficient pressure to prevent re-formation of any bubbles. The process is of particular utility in the spinning of molten organic compositions subject to bubble-formation as a result of decomposition when in molten state. The process is also applicable to the spinning of solutions of filament-forming compounds. As shown, solid organic filament-forming composition is placed in a container 5 and melted by the grid 7. The molten composition drops through the grid and forms a pool 11 which contains small bubbles 13 as a result of decomposition. The composition is pressed by gear-pump 15 to a pressure sufficient to eliminate the bubbles and prevent further bubble-formation, and is passed to a reservoir 17. It is then metered by a gear-pump 19 to a filter-pack 21 made of fine screens which in addition to their function as a filter also maintain the composition under pressure until it reaches the spinneret and is extruded in the form of filaments. The pump 15 has a greater capacity than pump 19. A byepass 25 containing a relief-valve 27 is provided. If the pump has sufficient slip or back-pressure leakage the byepass may be omitted. The pressure applied to the composition is preferably at least 50 lb. per square inch. In an example, polyhexamethylene adipamide is melted under 10 lb. nitrogen pressure at 280‹C. and fed to the gear-pump 15 which imparts to the molten mass a pressure of 5001b. per square inch and this removes any bubbles. The molten mass is then pumped through the filter-pack and the extrusion orifices to. form filaments. The filament-forming substance may be a polyamide, polyester, polyether, polyacetal, ethylene polymer, vinyl polymer, polystyrene, or polyacrylic acid derivative. The composition may contain resins, plasticizers, pigments, dyes, delustrants, or anti-oxidants. The pressure may be applied by gear-, screw-, or piston-pumps, or by gas pressure using nitrogen, hydrogen, or other oxygen-free gas.
GB26833/39A 1938-08-09 1939-09-29 Improvements in or relating to the production of artificial filaments, films and other structures by extrusion of molten or plastic compositions Expired GB535186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US223997A US2253176A (en) 1938-08-09 1938-08-09 Method and apparatus for production of structures

Publications (1)

Publication Number Publication Date
GB535186A true GB535186A (en) 1941-04-01

Family

ID=22838857

Family Applications (5)

Application Number Title Priority Date Filing Date
GB23045/39A Expired GB533306A (en) 1938-08-09 1939-08-09 Improvements relating to the melt spinning of fibre-forming synthetic linear polymers
GB23027/39A Expired GB533303A (en) 1938-08-09 1939-08-09 Improvements in or relating to the spinning and winding of artificial filaments
GB23047/39A Expired GB533307A (en) 1938-08-09 1939-08-09 Improvements in or relating to the melt spinning of organic filament-forming compositions
GB26833/39A Expired GB535186A (en) 1938-08-09 1939-09-29 Improvements in or relating to the production of artificial filaments, films and other structures by extrusion of molten or plastic compositions
GB5801/41A Expired GB549208A (en) 1938-08-09 1941-05-05 Improvements in or relating to the melting of organic filament-forming materials

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB23045/39A Expired GB533306A (en) 1938-08-09 1939-08-09 Improvements relating to the melt spinning of fibre-forming synthetic linear polymers
GB23027/39A Expired GB533303A (en) 1938-08-09 1939-08-09 Improvements in or relating to the spinning and winding of artificial filaments
GB23047/39A Expired GB533307A (en) 1938-08-09 1939-08-09 Improvements in or relating to the melt spinning of organic filament-forming compositions

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB5801/41A Expired GB549208A (en) 1938-08-09 1941-05-05 Improvements in or relating to the melting of organic filament-forming materials

Country Status (7)

Country Link
US (1) US2253176A (en)
BE (2) BE434223A (en)
CH (1) CH211636A (en)
DE (3) DE752214C (en)
FR (3) FR851437A (en)
GB (5) GB533306A (en)
NL (4) NL54872C (en)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2253176A (en) * 1938-08-09 1941-08-19 Du Pont Method and apparatus for production of structures
US2503251A (en) * 1945-02-16 1950-04-11 Ici Ltd Production of filaments, fibers, and the like
US2540286A (en) * 1946-01-04 1951-02-06 Celanese Corp Control means
BE472049A (en) * 1946-03-22
US2571975A (en) * 1947-05-10 1951-10-16 Du Pont Melt spinning process
FR1011428A (en) * 1949-02-05 1952-06-23 Rhodiaceta Apparatus and method for spinning high polymer solutions
US2679661A (en) * 1949-07-21 1954-06-01 Celanese Corp Method and apparatus for forming films
US2687552A (en) * 1949-11-07 1954-08-31 Inventa Ag Process and apparatus for direct spinning of polyamides
US2719776A (en) * 1949-11-23 1955-10-04 Inventa Ag Elimination of monomers from lactampolymerization products
BE499182A (en) * 1949-12-05
DE1167482B (en) * 1950-05-31 1964-04-09 Toyo Rayon Co Ltd Melt spinning device for organic substances
BE505541A (en) * 1950-09-01
BE513140A (en) * 1951-07-28
US2877495A (en) * 1951-08-04 1959-03-17 Perfogit Spa Process and apparatus for melt spinning
US2753594A (en) * 1952-05-03 1956-07-10 Inventa Ag Apparatus for use in the melt-spinning of synthetic polymers
BE528734A (en) * 1953-06-25
US2898628A (en) * 1953-07-03 1959-08-11 Ici Ltd Melt-spinning apparatus
DE1059611B (en) * 1954-04-10 1959-06-18 Hoechst Ag Device for spinning molten polyamides from vacuum chambers
US2922187A (en) * 1956-02-04 1960-01-26 British Celanese Melt spinning apparatus
DE1075788B (en) * 1956-07-17 1960-02-18 Societe Rhodiaceta, Paris Process for the production of threads with a single thread denier of the order of 3 den. by melt spinning polyethylene
NL224690A (en) * 1957-02-08
NL98932C (en) * 1959-04-06
US3032821A (en) * 1959-08-07 1962-05-08 American Enka Corp Process for manufacturing thermoplastic granules
NL120091C (en) * 1960-08-05
DE1248855C2 (en) * 1960-08-13 1973-10-18 PROCESS FOR MANUFACTURING FIBERS OR FEDES FROM LINEAR POLYESTERS
BE609564R (en) * 1960-11-03 1962-02-15 Onderzoekings Inst Res Device for the production of artificial threads by the dry spinning method
US3354250A (en) * 1962-05-09 1967-11-21 Chemcell Ltd Extrusion method and apparatus
US3248191A (en) * 1965-03-04 1966-04-26 Owens Corning Fiberglass Corp Feeder for melting glass spheres for fiber drawing
US3753661A (en) * 1971-02-08 1973-08-21 Fiber Industries Inc Apparatus for the preparation of filamentary material
DE2514874B2 (en) * 1975-04-05 1978-08-17 Zimmer Ag, 6000 Frankfurt Process for high-speed spinning of polyamides
US4042658A (en) * 1975-11-14 1977-08-16 Valcour Imprinted Papers, Inc. Method for making packaging particles and resulting product
US4161391A (en) * 1978-03-14 1979-07-17 Allied Chemical Corporation Melting apparatus
DE3638307A1 (en) * 1986-11-10 1988-05-19 Volker Ludwig DEVICE FOR APPLYING LIQUID, PASTOESE OR PLASTIC SUBSTANCES TO A SUBSTRATE
DE3869332D1 (en) * 1987-11-13 1992-04-23 Nordson Corp DEVICE FOR LIQUIDATING A HIGH POLYMER, THERMOPLASTIC MATERIAL.
US5061170A (en) * 1989-12-08 1991-10-29 Exxon Chemical Patents Inc. Apparatus for delivering molten polymer to an extrusion
US5523537A (en) * 1991-12-31 1996-06-04 Eastman Kodak Company Passive liquifier
US5374120A (en) * 1993-12-06 1994-12-20 Eastman Kodak Company Modified passive liquid in-line segmented blender
US6056431A (en) * 1997-09-05 2000-05-02 Eastman Kodak Company Modified passive liquefier batch transition process
DE10042478B4 (en) * 2000-08-29 2007-03-15 Bühler AG Process for melting polymer granules and melting element
JP6084841B2 (en) * 2012-12-21 2017-02-22 東京エレクトロン株式会社 Lithium ion capacitor electrode manufacturing apparatus and method
CN111225779B (en) * 2017-10-31 2022-10-28 诺信公司 Melting system comprising a melting unit with a side-loading hopper
CN109338547A (en) * 2018-11-21 2019-02-15 湖南康宝源科技实业有限公司 A kind of preparation facilities of the high-elastic super thermal fiber of fine-denier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR531356A (en) * 1920-02-27 1922-01-11 Device for regulating, by the application of rotary pumps, the flow rate of the dies in the manufacture of textiles and artificial filaments
FR695506A (en) * 1930-05-10 1930-12-17 Process for making glass yarns
DE626198C (en) * 1934-02-21 1936-02-21 Hugo Knoblauch Device for producing threads from glass
GB461237A (en) * 1935-01-02 1937-02-09 Du Pont The manufacture of new compositions of matter and of artificial filaments, fibres, sheets, films and the like therefrom
US2253176A (en) * 1938-08-09 1941-08-19 Du Pont Method and apparatus for production of structures

Also Published As

Publication number Publication date
NL54467C (en) 1942-12-15
CH211636A (en) 1940-10-15
GB533307A (en) 1941-02-11
DE742867C (en) 1943-12-13
GB533303A (en) 1941-02-11
GB549208A (en) 1942-11-11
NL54872C (en) 1943-02-15
FR50571E (en) 1941-01-15
NL54468C (en) 1949-12-15
FR851437A (en) 1940-01-09
FR50574E (en) 1941-01-15
BE465270A (en) 1946-06-29
GB533306A (en) 1941-02-11
NL58729C (en) 1946-08-15
BE434223A (en) 1939-06-30
DE1141408B (en) 1962-12-20
DE752214C (en) 1963-08-20
US2253176A (en) 1941-08-19

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