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GB536379A - Improved process and apparatus for the production of filaments - Google Patents

Improved process and apparatus for the production of filaments

Info

Publication number
GB536379A
GB536379A GB29841/39A GB2984139A GB536379A GB 536379 A GB536379 A GB 536379A GB 29841/39 A GB29841/39 A GB 29841/39A GB 2984139 A GB2984139 A GB 2984139A GB 536379 A GB536379 A GB 536379A
Authority
GB
United Kingdom
Prior art keywords
screen
extrusion
spinneret plate
filter
filaments
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
GB29841/39A
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 GB536379A publication Critical patent/GB536379A/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
    • D01D1/00—Treatment of filament-forming or like material
    • D01D1/10—Filtering or de-aerating the spinning solution or melt
    • D01D1/106—Filtering
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

536,379. Artificial filaments. DU PONT DE NEMOURS & CO., E. I. Nov. 10, 1939, No. 29841. Convention date, Nov. 10, 1938. [Class 2 (ii)] In a process for forming filaments by the extrusion of molten compositions, the compositions are passed before extrusion through a filter bed of finely divided inert material such as silica sand, stainless steel filings or similar metal substances. The molten composition employed may be a synthetic linear polyamide, for example polyhexamethylene adipamide. The extrusion and filter apparatus consists of an internally threaded tubular member 3 which receives the upper part 1 containing the feed duct 2. The lower part of the member 3 screws into the cap 6 by which the spinneret plate 7 is retained in position. The joints are rendered tight by asbestos gaskets 5, 9 and coarse metal screens 12 rest on the spinneret plate 7 and support a fine mesh metal screen 11. The inert filter material rests on the screen 11 and may consist of layers A, 10, the latter layer 10 consisting of smaller grain size than the former. The inert material is covered by the screen 13 which can be pressed down as desired by the screw action of the part 1. The molten composition is fed under suitable pressure and temperature through the duct 2 to be forced downwards through the filter material and the holes 8 in the spinneret plate 7. Specification 536,380 is referred to.
GB29841/39A 1938-11-10 1939-11-10 Improved process and apparatus for the production of filaments Expired GB536379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US239770A US2266368A (en) 1938-11-10 1938-11-10 Apparatus for the production of artificial structures

Publications (1)

Publication Number Publication Date
GB536379A true GB536379A (en) 1941-05-13

Family

ID=22903656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29841/39A Expired GB536379A (en) 1938-11-10 1939-11-10 Improved process and apparatus for the production of filaments

Country Status (3)

Country Link
US (1) US2266368A (en)
GB (1) GB536379A (en)
NL (1) NL55019C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207038B (en) * 1952-07-09 1965-12-16 Ici Ltd Spinning head with a sand filter pack for melt spinning
WO1993011848A1 (en) * 1991-12-17 1993-06-24 Wellman, Inc. Repair of filtration elements for polymer manufacture

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2607954A (en) * 1950-06-17 1952-08-26 Celanese Corp Method and apparatus for forming gel-free thermoplastic films
US2869176A (en) * 1951-08-13 1959-01-20 Du Pont Spinneret pack
NL96182C (en) * 1952-03-28
US2761754A (en) * 1952-06-07 1956-09-04 Celanese Corp Process for the production of acrylonitrile polymer fibers
GB755954A (en) * 1953-08-28 1956-08-29 Ici Ltd Melt-spinning method and apparatus
US2802573A (en) * 1954-02-23 1957-08-13 Sun Oil Co Contacting apparatus
US2883261A (en) * 1955-02-02 1959-04-21 Du Pont Process for filtration during melt spinning
BE549181A (en) * 1955-06-30
US2820985A (en) * 1955-07-11 1958-01-28 American Cyanamid Co Spinnerette insert and assembly
NL227891A (en) * 1957-05-24 1900-01-01
US2984546A (en) * 1957-11-25 1961-05-16 Du Pont Process for the purification of sand
US3179550A (en) * 1958-07-09 1965-04-20 Friedman Abraham Pile surfaced product and method of forming same
US3028627A (en) * 1959-04-10 1962-04-10 Du Pont Spinneret pack assembly
US3095607A (en) * 1962-07-10 1963-07-02 Du Pont Spinneret assembly
US3272773A (en) * 1962-10-01 1966-09-13 Du Pont Process of producing stabilized polycarbonamides containing a metal chelate of 8-hydroxyquinoline
US3295161A (en) * 1965-03-12 1967-01-03 Mott Metallurg Corp Equipment for producing synthetic polymer fibers
US3348263A (en) * 1966-03-28 1967-10-24 Du Pont Melt spinning filtration bed retaining screen
US3506753A (en) * 1967-04-07 1970-04-14 Monsanto Co Melt-spinning low viscosity polymers
US4358375A (en) * 1979-09-11 1982-11-09 Allied Corporation Filter pack
US4260350A (en) * 1980-04-16 1981-04-07 Fiber Industries, Inc. Filter for high viscosity liquids
FR2894840B1 (en) * 2005-12-20 2008-05-30 Inst Francais Du Petrole SECONDARY FILTRATION DEVICE APPLICABLE TO A THREE PHASE PROCESS
US20080217360A1 (en) * 2007-03-05 2008-09-11 Illinois Tool Works Inc. Hot melt adhesive dispensing valve or module assembly having a module filter disposed therewithin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207038B (en) * 1952-07-09 1965-12-16 Ici Ltd Spinning head with a sand filter pack for melt spinning
WO1993011848A1 (en) * 1991-12-17 1993-06-24 Wellman, Inc. Repair of filtration elements for polymer manufacture

Also Published As

Publication number Publication date
US2266368A (en) 1941-12-16
NL55019C (en)

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