US2253176A - Method and apparatus for production of structures - Google Patents

Method and apparatus for production of structures Download PDF

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Publication number
US2253176A
US2253176A US223997A US22399738A US2253176A US 2253176 A US2253176 A US 2253176A US 223997 A US223997 A US 223997A US 22399738 A US22399738 A US 22399738A US 2253176 A US2253176 A US 2253176A
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US
United States
Prior art keywords
grid
composition
molten
melting
filament
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 - Lifetime
Application number
US223997A
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English (en)
Inventor
Graves George De Witt
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
Priority to US223997A priority Critical patent/US2253176A/en
Priority to US223983A priority patent/US2289860A/en
Priority to US232314A priority patent/US2278875A/en
Priority to US238211A priority patent/US2252684A/en
Priority to FR851437D priority patent/FR851437A/fr
Priority to FR50571D priority patent/FR50571E/fr
Priority to FR50574D priority patent/FR50574E/fr
Priority to BE434223D priority patent/BE434223A/xx
Priority to CH211636D priority patent/CH211636A/fr
Priority to GB23027/39A priority patent/GB533303A/en
Priority to NL54468D priority patent/NL54468C/xx
Priority to GB23045/39A priority patent/GB533306A/en
Priority to NL54872D priority patent/NL54872C/xx
Priority to NL54467D priority patent/NL54467C/xx
Priority to GB23047/39A priority patent/GB533307A/en
Priority to DEP79594D priority patent/DE752214C/de
Priority to DEP79773D priority patent/DE742867C/de
Priority to GB26833/39A priority patent/GB535186A/en
Priority to US333315A priority patent/US2300083A/en
Priority to DEJ1058A priority patent/DE1141408B/de
Priority to GB5801/41A priority patent/GB549208A/en
Priority to NL58729D priority patent/NL58729C/xx
Application granted granted Critical
Publication of US2253176A publication Critical patent/US2253176A/en
Priority to BE465270D priority patent/BE465270A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • This invention relates to the production of yarns, filaments, ribbons and the like. More particularly, it relatesto' the melt spinning of yarns, filaments, ribbons, and the like from organic filament-forming compositions which have a tendency to change theirchemical composition while in the molten state.
  • the objects of this invention are accomplished, in general, by feeding the solid organic filamentforming composition on to a heated surface upon which melting occurs at a rate substantially equal to the rate of withdrawal of the molten composition, and allowing the molten filamentforming composition to flow to a pool of restricted volume from which the molten filament-forming composition may be withdrawn, for example, by forcing the same through an opening of a desired size and shape, solidifying the formed composition, and collecting the solidifiedarticles in any desired manner.
  • Figure 1 is a diagrammatic, side elevational view of an apparatus for melt spinning according to the invention.
  • FIG. 2 is a similar view of another modification of the invention.
  • FIGS. 3 and Figure 4 are diagrammatic, side elevational views showing modified forms of the grid melting unit used in the present invention.
  • reference numeral H represents a cylindrical chamber which may be insulated or which maybe provided with means for heating the same.
  • the grid l2 is constructed of tubing and is preferably constructed from a non-corrosive metal such as stainless steel, Monel, illium or similar metal H alloy.
  • the spiral coil grid l2 may be heated by means of electrical resistance units positioned at the interior thereof or by means of a heating medium circulated therethrough, Solid pieces, e. g., flakes l5 of the organic filament-forming composition shown at iii are allowed to fall, preferably at a uniform rate, from the fiake hopper I! located above the chamber.
  • an atmosphere of an inert gas may be main-
  • the chamber II is provided with a substantially the same rate;
  • a pumping element e. g., a gear metering pump, for example, a pump similar to the type commonly used in the spinning of filaments from viscose, which meters it to the spinneret from which it is forced in the form of filaments, ribbons or the like.
  • these flakes shown at l5 should be of essentially uniform size andof somewhatlarger size than the spaces between turns of the melting grid l2. unmelted material falling throughv the grid. It is to be noted, however, that once melting has begun and the viscous, molten filament-forming composition is draining through the grid, flakes do not tend to fall through unmelted even though they be somewhat smaller than the grid separation since they are caught in the viscous mass. While the separation of the turns of the grid can be varied over considerable limits depending on the size of the flakes or chips of the filamentforming composition, the minimum separation of the turns of the grid is critical and is dependent on the viscosity of the molten filament-forming composition.
  • the flakes of filament-forming composition have a certain minimum size but it is also important that they be of a uniform size and only slightly larger than the spaces between the turns of the grid. There are several reasons for this: To achieve uniform melting and minimum exposure to the elevated temperature it is desired that a maximum surface area of the flake be in contact with the melting grid, which is attained by minimum flake size; to obtain melting at a uniform rate, which is vital to the invention, the particles should be of uniform size in order that they will melt at and likewise the feeding of the flakes to the melting grid is facilitated by the use of small uniformly sized flakes. Flakes suitable for use in this invention can be conveniently prepared by a process disclosed in the applicants copending application Serial No. 223,998 filed of even date herewith.
  • a melting unit for each spinneret since it is desired to maintain a minimum quantity of the filamentforming composition in the molten condition. It is to be understood, however, that the invention is not so limited, for by placing a plurality of spinnerets in close proximity to the melting grid, supplied by a rapid parallel or a circulating series flow through restricted passages or by other special means, one melting unit could supply a plurality of spinnerets.
  • the rate at which the flakes are fed to the grid may be accurately adjusted to the rate of extrusion of the molten filament-forming composition, it is desirable to know the quantity of liquid material present in the pool at all times, since an object of the invention is to obtain minimum exposure of the molten material to elevated temperatures. This may be done in a number of ways as by the use of gauges, windows, and the like.
  • a particularly convenient method of determining the quantity of liquid in the molten pool is by means of a conductivity measurement, since organic filament-forming compositions exhibit sufilclent electrical conductivity for such a measurement. This may be done by inserting a vertical electrode l8 through the bottom of the melt chamber H by means of suitable insulation 20.
  • This electrode is connected through a suitably calibrated milliammeter 22 to a battery 24 or other power source and thence connected to the walls of the melt chamber which comprise the other electrode.
  • the circuit is completed through the molten filament-forming composition. A rise in level is ac differentiated by an accompanying increase in the flow of current.
  • the amount of molten fllament-forming composition in the pool is preferred to restrict to the minimum quantity required to continuously supply the spinneret or other extruding means.
  • the maximum volume permissible depends to a large extent on the nature of the filament-forming composition and the rate of extrusion. In general, it is preferred that the volume does not exceed that which will be withdrawn from the pool in one hour, and more preferably in 15 minutes.
  • reference numeral 26 represents a cylindrical chamber preferably heated internally by passing a hot vapor, e. g., steam at high pressures, or Dowtherm, through the passages represented at 28.
  • a melting grid 30, preferably composed of metal, is heated internally, for example, by the passage therethrough of a hot vapor.
  • the melting grid 30 is provided with a metal plate 32 covering the open space left by the last turn of the coil.
  • the unheated cylindrical chamber 34 is filled with the flakes of filament-forming composition.
  • is preferably provided with a closure 36. In many instances, it is desired to preheat the flakes of filament-forming composition in this chamber. This increases the rate of melting when the flakes reach the grid and removes any excess moisture which may have condensed on the flake.
  • a hopper 38 is positioned below the grid 30.
  • the molten filament-forming into the hopper 38 after melting on and draining through the grid 30.
  • This molten filament-forming composition then flows from the hopper 38 through the passage 40 to the gear metering pump 42 from which it is forced to the spinneret pack 44 and spinneret 46 through conduit 48.
  • the molten material is ex- This modification of hopper '38, through arcane in the form of If it'is desired truded through the spinneret 4U filaments, ribbons, and the like.
  • the invention differs from that described in Figure 1 since the melt level is automatically maintained.
  • melting ocours and the hopper 38 becomes completely filled. Further melting results in the formation of a thin layer of the molten filament-forming composition above heat conductivity of the molten materialis very low, insumcient heat is transferred through this thinlayer of molten material to melt the solid above. Consequently, no further melting occurs until sufiicient molten material has been displaced by spinning to permit the level to fall below the level of the grid and to permit the solid filament-forming material to come; into" contact with the grid.
  • This construction of the maintenance of a constant apparatus allows the minimum quantity of the molten material;
  • Flakes of polyhexamethylene adipamide approximately x /4" x were placed in the chamber 34 completely filling it and the space in the chamber 28 above the melting the inert gas permitted the maintenance of an.
  • the molten filament-forming composition continuously drains from the melting surface. This downwardfiow of melt washes from i the melting surface any stagnant film. which sure of 10 lbs. of N: per square inch was maintained inside the chamber to prevent any diffusion of air into the apparatus. The flow of gas thus permitted replenishing the supply of the flakes without interrupting spinning.
  • the passages ing grid 30 were maintained at 285C.
  • the flakes in contact with the grid melted and the filament-l-forming composition drained into the 4 the passage 40. to the gear pum 42 V 44 and spinneret 46' of filaments.
  • sufllclent molten filament-formin 2s in chamber as andthe meltwhich forced it to the spinneretpack r from which it was spun at a rate of about 15 grams per minute inthe form tends to collect, thereby contributing to the uniformity of the melt and decreasing the possibility of decomposition.
  • the grid melting unit may take the form of a hollow cone 60 formed from rods or tubing as shown in Figure 3. In this modification, it may be desirable to provide the top of they cone with a cap 62.
  • the grid melting unit may comprise a pair of perforated metal discs 64 wedged against the side walls of the melt chamber 65, as shown in Figure 4.
  • a plurality of tubes 58 may be arranged between the discs 64.
  • Such discs 64 and tubes 68 can be heated by conduction of heat from the outside of the melting particles.
  • spiral grids may be formedfrom more than one circuit of pipe.
  • the melting grids may be maintained at any suitable temperature; preferably however, the melting grids are maintained at a temperature not to exceed 40 C.above the melting point of the filament-forming composition being spun.
  • an inert atmosphere in the melt chamber may be maintained, to prevent or reduce oxidation of the molten filament-forming composition.
  • Nitrogen, carbon dioxide, hydrogen or any other oxygen-free gas which is inert to thefilamentforming composition may be used for this purpose.
  • the gas may be introduced at any convenient point in the melt chamber to maintain molten filament-forming comsuch an atmosphere.
  • the face of the spinneret may be similarly blanketed to prevent oxidation of the freshly extruded filaments with accompanying interruption of the spinning.
  • This invention is peculiarly adaptable to the spinning from melt of filaments and the like from these fiber forming synthetic linear polymers and particularly to the synthetic linear polyamides which belong to this class since these synthetic linear polymers are crystalline in the solid state as evidenced by X-ray investigation and they have a definite melting point.
  • These synthetic linear polymers melt sharply, forming liquids which drain readily from the melting grid thus facilitating control of the melting and reducing any tendency to decompose at elevated temperatures.
  • Other synthetic linear polymers include the polyesters, polyethers, polyacetals, mixed polyester-polyamides, etc. which, for example, may be prepared by a process of condensation polymerization as described in U. S. Patent No. 2,071,250.
  • My invention is also applicable to advantage in the spinning from melt of filament and .the like, of the polymers prepared by the high pressure polymerization of ethylene which are more fully described in the copending application of Fawcett, Gibson and Perrin, Serial Number 123,722 filed February 2, 1937 since they are also crystalline in the solid state.
  • This invention is also applicable to the spinning of other organic filament forming compositions which are capable of being spun from melt particularly to the extruding of such materials which have a tendency to change their chemical composition while in their molten state.
  • filament forming compositions may be mentioned vinyl polymers, polystyrene and polyacrylic acid derivatives.
  • Cellulose derivatives, e. g., cellulose acetate suitably plasticized can also be spun according to the invention.
  • the present invention is not to be limited to the spinning of ribbons and filaments; the molten material may, for example, be withdrawn for the continuous coating of articles such as wire with synthetic linear polymers whereby to electrically insulate the same.
  • the filament-forming material used in the process of this invention may contain modifying agents, e. g., luster modifying agents, plasticizers, pigments, dyes, antioxidants, resins, etc.
  • the solid filament-forming composition is melted rapidly and continuously whereupon the molten filamentforming composition drains directly to a pool of restricted volume from which it is extruded in the form of filaments, ribbons, and the like. Since the filament-forming composition is exposed to an elevated temperature for a minimum, constant period. any tendency toward decomposition, the formation of gaseous products and any tendency to polymerize further is reduced uniform physical to a minimum or is maintained at a constant rate. It is possible, therefore, to obtain in a continuous manner molten organic filamentforming compositions having uniform properties and to extrude these molten filament-forming compositions in a uniform and continuous manner in the form 01' yarns, filaments, ribbons, and
  • filaments By collecting the freshly spun flla-' ments in an orderly manner, filaments will be obtained of extremely uniform denier and of and chemical characteristics.
  • a grid having a plurality of openings therein, means for heating said grid to a temperature above the melting point of said composition, means for feeding solid particles of composition on to said grid, means for collecting the liquid molten composition in the form of a pool, and pumping means for forcing said composition to a spinning unit.
  • a grid having a plurality of openings therein, means for heating said grid to a temperature above the melting point of said composition, means for feeding solid particles of said composition on to said grid, a spinneret, and pumping means for extruding said molten composition through said spinneret.
  • an enclosure In an apparatus for the melt spinning of structures from an organic filament-forming composition, an enclosure, a grid melting unit in said enclosure, means for conducting solid organic filament-forming composition onto said said extrusion means.
  • an enclosure in said enclosure, means for conducting solid organic filament-forming composition onto said which the grid is a spiral structure, the elements forming the spiral structure being spaced from each other to provide openings therebetween.
  • an enclosure in said enclosure, a grid melting unit in said enclosure, means for conducting solid organic fllamentiorming composition onto said unit, means through which the liquid molten composition is extruded, collecting means, intermediate saidunit and extrusion means, for collecting a suilicient quantity of liquid molten composition to provide a substantially constant volume of ilow of said liquid composition through said extrusion means, and inert gas conveying means connected to said solid conducting means and said enclosure tor sweeping objectionable gaseous elements from said enclosure.
  • a process for the melt spinning of a yarn from a molten synthetic linear polyamide spinning composition comprising continuously melting small solid particles of said composition in at atmosphere consisting of a gas inert to said composition, and continuously extruding the molten composition, the melting and extruding oi the composition being carried out at a temperature not to exceed 40 C. above the melting point of the composition, and the melting of said composition being carried out at a rate substantially equal to the rate of extrusion of said composition.

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  • 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)
US223997A 1938-08-09 1938-08-09 Method and apparatus for production of structures Expired - Lifetime US2253176A (en)

Priority Applications (23)

Application Number Priority Date Filing Date Title
US223997A US2253176A (en) 1938-08-09 1938-08-09 Method and apparatus for production of structures
US223983A US2289860A (en) 1938-08-09 1938-08-09 Process and apparatus for the production of artificial fibers and the like
US232314A US2278875A (en) 1938-08-09 1938-09-29 Method and apparatus for the production of artificial structures
US238211A US2252684A (en) 1938-08-09 1938-11-01 Apparatus for the production of artificial structures
FR851437D FR851437A (fr) 1938-08-09 1939-03-10 Procédé et appareil pour la filature, à l'état fondu, de produits organiques filables
FR50571D FR50571E (fr) 1938-08-09 1939-03-21 Procédé et appareil pour la filature, à l'état fondu, de produits organiques filables
FR50574D FR50574E (fr) 1938-08-09 1939-03-22 Procédé et appareil pour la filature, à l'état fondu, de produits organiques filables
BE434223D BE434223A (US20110009641A1-20110113-C00256.png) 1938-08-09 1939-05-06
CH211636D CH211636A (fr) 1938-08-09 1939-07-29 Procédé de filature, à l'état fondu, d'un produit organique, et appareil pour la mise en oeuvre de ce procédé.
NL54872D NL54872C (US20110009641A1-20110113-C00256.png) 1938-08-09 1939-08-09
NL54468D NL54468C (US20110009641A1-20110113-C00256.png) 1938-08-09 1939-08-09
GB23045/39A GB533306A (en) 1938-08-09 1939-08-09 Improvements relating to the melt spinning of fibre-forming synthetic linear polymers
GB23027/39A GB533303A (en) 1938-08-09 1939-08-09 Improvements in or relating to the spinning and winding of artificial filaments
NL54467D NL54467C (US20110009641A1-20110113-C00256.png) 1938-08-09 1939-08-09
GB23047/39A GB533307A (en) 1938-08-09 1939-08-09 Improvements in or relating to the melt spinning of organic filament-forming compositions
DEP79594D DE752214C (de) 1938-08-09 1939-08-10 Verfahren und Vorrichtung zur Herstellung von kuenstlich geformten Gebilden, wie Faeden und Baender, aus organischen Polymeren nach dem Schmelzspinnverfahren
DEP79773D DE742867C (de) 1938-08-09 1939-09-16 Verfahren zum Auspressen von geschmolzenen Polymeren, insbesondere synthetischen Linearpolyamiden
GB26833/39A 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
US333315A US2300083A (en) 1938-08-09 1940-05-04 Method and apparatus for the production of structures
DEJ1058A DE1141408B (de) 1938-08-09 1941-04-30 Verfahren und Vorrichtung zur Herstellung von Faeden, Baendern od. dgl. aus der Schmelze von organischen synthetischen, linearen Polymeren, insbesondere Polyamiden
GB5801/41A GB549208A (en) 1938-08-09 1941-05-05 Improvements in or relating to the melting of organic filament-forming materials
NL58729D NL58729C (US20110009641A1-20110113-C00256.png) 1938-08-09 1941-05-10
BE465270D BE465270A (US20110009641A1-20110113-C00256.png) 1938-08-09 1946-05-16

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

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Publication Number Publication Date
US2253176A true US2253176A (en) 1941-08-19

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US223997A Expired - Lifetime US2253176A (en) 1938-08-09 1938-08-09 Method and apparatus for production of structures

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US (1) US2253176A (US20110009641A1-20110113-C00256.png)
BE (2) BE434223A (US20110009641A1-20110113-C00256.png)
CH (1) CH211636A (US20110009641A1-20110113-C00256.png)
DE (3) DE752214C (US20110009641A1-20110113-C00256.png)
FR (3) FR851437A (US20110009641A1-20110113-C00256.png)
GB (5) GB533307A (US20110009641A1-20110113-C00256.png)
NL (4) NL54872C (US20110009641A1-20110113-C00256.png)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US2571975A (en) * 1947-05-10 1951-10-16 Du Pont Melt spinning process
DE887691C (de) * 1949-12-05 1953-08-27 Phrix Werke Ag Verfahren und Vorrichtung zum kontinuierlichen Verformen, ins-besondere Verspinnen organischer Hochpolymere aus dem Schmelzfluss
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
US2753594A (en) * 1952-05-03 1956-07-10 Inventa Ag Apparatus for use in the melt-spinning of synthetic polymers
US2771634A (en) * 1951-07-28 1956-11-27 Perfogit Spa Apparatus for the melt-spinning of synthetic linear polymers
US2877495A (en) * 1951-08-04 1959-03-17 Perfogit Spa Process and apparatus for melt spinning
US2888711A (en) * 1950-09-01 1959-06-02 British Celanese Production of filamentary materials
US2898628A (en) * 1953-07-03 1959-08-11 Ici Ltd Melt-spinning apparatus
US2922187A (en) * 1956-02-04 1960-01-26 British Celanese Melt spinning apparatus
US3010147A (en) * 1957-02-08 1961-11-28 British Nylon Spinners Ltd Apparatus and process for melt spinning
US3248191A (en) * 1965-03-04 1966-04-26 Owens Corning Fiberglass Corp Feeder for melting glass spheres for fiber drawing
US3354250A (en) * 1962-05-09 1967-11-21 Chemcell Ltd Extrusion method and apparatus
US3753661A (en) * 1971-02-08 1973-08-21 Fiber Industries Inc Apparatus for the preparation of filamentary material
US4161391A (en) * 1978-03-14 1979-07-17 Allied Chemical Corporation Melting apparatus
WO1988003442A1 (fr) * 1986-11-10 1988-05-19 Volker Ludwig Dispositif d'application de substances fluides, pateuses ou plastiques sur des substrats
EP0316505A2 (de) * 1987-11-13 1989-05-24 Nordson Corporation Vorrichtung zum Verflüssigen eines hochpolymeren, thermoplastischen Werkstoffes
US5061170A (en) * 1989-12-08 1991-10-29 Exxon Chemical Patents Inc. Apparatus for delivering molten polymer to an extrusion
EP0550357A1 (en) * 1991-12-31 1993-07-07 Eastman Kodak Company Passive liquefier
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
US20040012116A1 (en) * 2000-08-29 2004-01-22 Theodor Jurgens Method for melting a polymer granulate and melt element
US20140178594A1 (en) * 2012-12-21 2014-06-26 Tokyo Electron Limited Electrode manufacturing apparatus for lithium ion capacitor and electrode manufacturing method therefor

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US2253176A (en) * 1938-08-09 1941-08-19 Du Pont Method and apparatus for production of structures
BE472049A (US20110009641A1-20110113-C00256.png) * 1946-03-22
FR1011428A (fr) * 1949-02-05 1952-06-23 Rhodiaceta Appareillage et procédé pour la filature des solutions de hauts polymères
DE1167482B (de) * 1950-05-31 1964-04-09 Toyo Rayon Co Ltd Schmelzspinnvorrichtung fuer organische Stoffe
BE528734A (US20110009641A1-20110113-C00256.png) * 1953-06-25
DE1059611B (de) * 1954-04-10 1959-06-18 Hoechst Ag Vorrichtung zum Verspinnen von geschmolzenen Polyamiden aus Vakuumkammern
DE1075788B (de) * 1956-07-17 1960-02-18 Societe Rhodiaceta, Paris Verfahren zur Herstellung von Fäden mit einem Einzelfadentiter in der Größenordnung von 3 den. durch Schmelzspinnen von Polyäthylen
LU38383A1 (US20110009641A1-20110113-C00256.png) * 1959-04-06
US3032821A (en) * 1959-08-07 1962-05-08 American Enka Corp Process for manufacturing thermoplastic granules
NL267323A (US20110009641A1-20110113-C00256.png) * 1960-08-05
DE1248855C2 (de) * 1960-08-13 1973-10-18 Verfahren zur herstellung von fasern oder faeden aus linearen polyestern
BE609564R (nl) * 1960-11-03 1962-02-15 Onderzoekings Inst Res Inrichting voor de vervaardiging van kunstmatige draden volgens de droge spinmethode
DE2514874B2 (de) * 1975-04-05 1978-08-17 Zimmer Ag, 6000 Frankfurt Verfahren zum Schnellspinnen von Polyamiden
US4042658A (en) * 1975-11-14 1977-08-16 Valcour Imprinted Papers, Inc. Method for making packaging particles and resulting product
EP3703921B1 (en) * 2017-10-31 2022-10-12 Nordson Corporation Melt system including a melt unit with a side-loading hopper
CN109338547A (zh) * 2018-11-21 2019-02-15 湖南康宝源科技实业有限公司 一种细旦高弹超保暖纤维的制备装置

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FR531356A (fr) * 1920-02-27 1922-01-11 Dispositif de régulation, par l'application des pompes rotatives, du débit des filières dans la fabrication des textiles et filaments artificiels
FR695506A (fr) * 1930-05-10 1930-12-17 Procédé pour faire des filés de verre
DE626198C (de) * 1934-02-21 1936-02-21 Hugo Knoblauch Vorrichtung zum Erzeugen von Faeden aus Glas
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

Cited By (31)

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Publication number Priority date Publication date Assignee Title
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
US2571975A (en) * 1947-05-10 1951-10-16 Du Pont Melt spinning process
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
DE887691C (de) * 1949-12-05 1953-08-27 Phrix Werke Ag Verfahren und Vorrichtung zum kontinuierlichen Verformen, ins-besondere Verspinnen organischer Hochpolymere aus dem Schmelzfluss
US2888711A (en) * 1950-09-01 1959-06-02 British Celanese Production of filamentary materials
US2771634A (en) * 1951-07-28 1956-11-27 Perfogit Spa Apparatus for the melt-spinning of synthetic linear polymers
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
US2898628A (en) * 1953-07-03 1959-08-11 Ici Ltd Melt-spinning apparatus
US2922187A (en) * 1956-02-04 1960-01-26 British Celanese Melt spinning apparatus
US3010147A (en) * 1957-02-08 1961-11-28 British Nylon Spinners Ltd Apparatus and process for melt spinning
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
US4161391A (en) * 1978-03-14 1979-07-17 Allied Chemical Corporation Melting apparatus
WO1988003442A1 (fr) * 1986-11-10 1988-05-19 Volker Ludwig Dispositif d'application de substances fluides, pateuses ou plastiques sur des substrats
EP0401866A1 (de) * 1986-11-10 1990-12-12 Volker Ludwig Vorrichtung zum Auftragen von flüssigen, pastösen oder plastischen Substanzen auf ein Substrat
EP0316505A2 (de) * 1987-11-13 1989-05-24 Nordson Corporation Vorrichtung zum Verflüssigen eines hochpolymeren, thermoplastischen Werkstoffes
EP0316505A3 (en) * 1987-11-13 1989-11-15 Henning J. Claassen Device for melting a high molecular weight polymeric thermoplastic material
US5061170A (en) * 1989-12-08 1991-10-29 Exxon Chemical Patents Inc. Apparatus for delivering molten polymer to an extrusion
EP0550357A1 (en) * 1991-12-31 1993-07-07 Eastman Kodak Company Passive liquefier
AU649576B2 (en) * 1991-12-31 1994-05-26 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
US20040012116A1 (en) * 2000-08-29 2004-01-22 Theodor Jurgens Method for melting a polymer granulate and melt element
US20140178594A1 (en) * 2012-12-21 2014-06-26 Tokyo Electron Limited Electrode manufacturing apparatus for lithium ion capacitor and electrode manufacturing method therefor
US9587300B2 (en) * 2012-12-21 2017-03-07 Tokyo Electron Limited Electrode manufacturing apparatus for lithium ion capacitor and electrode manufacturing method therefor
US9777362B2 (en) 2012-12-21 2017-10-03 Tokyo Electron Limited Electrode manufacturing apparatus for lithium ion capacitor

Also Published As

Publication number Publication date
GB533307A (en) 1941-02-11
DE752214C (de) 1963-08-20
NL58729C (US20110009641A1-20110113-C00256.png) 1946-08-15
CH211636A (fr) 1940-10-15
DE1141408B (de) 1962-12-20
GB533303A (en) 1941-02-11
GB535186A (en) 1941-04-01
GB549208A (en) 1942-11-11
FR50574E (fr) 1941-01-15
NL54468C (US20110009641A1-20110113-C00256.png) 1949-12-15
BE434223A (US20110009641A1-20110113-C00256.png) 1939-06-30
DE742867C (de) 1943-12-13
NL54467C (US20110009641A1-20110113-C00256.png) 1942-12-15
FR851437A (fr) 1940-01-09
BE465270A (US20110009641A1-20110113-C00256.png) 1946-06-29
GB533306A (en) 1941-02-11
FR50571E (fr) 1941-01-15
NL54872C (US20110009641A1-20110113-C00256.png) 1943-02-15

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