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DE1081185B - Process for the production of fine threads from high molecular weight, aliphatic polyolefins - Google Patents

Process for the production of fine threads from high molecular weight, aliphatic polyolefins

Info

Publication number
DE1081185B
DE1081185B DEV11633A DEV0011633A DE1081185B DE 1081185 B DE1081185 B DE 1081185B DE V11633 A DEV11633 A DE V11633A DE V0011633 A DEV0011633 A DE V0011633A DE 1081185 B DE1081185 B DE 1081185B
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DE
Germany
Prior art keywords
solution
dispersion
molecular weight
maximum
production
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.)
Pending
Application number
DEV11633A
Other languages
German (de)
Inventor
Dr Wolfgang Jurgeleit
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.)
Glanzstoff AG
Original Assignee
Glanzstoff AG
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
Priority to BE562603D priority Critical patent/BE562603A/xx
Priority to BE556923D priority patent/BE556923A/xx
Priority to BE570563D priority patent/BE570563A/xx
Application filed by Glanzstoff AG filed Critical Glanzstoff AG
Priority to DEV13156A priority patent/DE1040179B/en
Priority to DEV11633A priority patent/DE1081185B/en
Priority to CH356864D priority patent/CH356864A/en
Priority to FR1175772D priority patent/FR1175772A/en
Priority to GB18883/57A priority patent/GB824432A/en
Priority to DEV10789A priority patent/DE1024201B/en
Priority to CH359514D priority patent/CH359514A/en
Priority to FR752698A priority patent/FR72531E/en
Priority to GB38040/57A priority patent/GB845374A/en
Priority to CH358895D priority patent/CH358895A/en
Priority to FR772951A priority patent/FR74123E/en
Priority to GB30371/58A priority patent/GB851979A/en
Publication of DE1081185B publication Critical patent/DE1081185B/en
Priority to US54406A priority patent/US3048465A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • 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
    • D01D1/06—Feeding liquid to the spinning head
    • D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
    • 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
    • D01D5/06—Wet spinning methods
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/12—Applications used for fibers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Textile Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Description

Zur Herstellung von feinen Fäden aus aliphatischen Polyolefinen hat man die Polymerisationsprodukte von aliphatischen Olefinen mit 2 bis 5 C-Atomen, also die Polymerisate von Äthylen, Propylen, ButylenühdPenten, in im wesentlichen aus Paraffin- und Naphthen-Kohlen-Wasserstoffen bestehenden Ölen, die unter dem Namen Mineralöl, Gasöl, Spindelöle Weißöl, Paraffinöl u. a. im Handel sind, zu einer höchstens 18°/0igen Lösung aufgelöst und diese Lösung anschließend versponnen. Für die Herstellung dieser -Spinnlösungen verwendet man sogenannte Niederdruckpolyolefine, welche unter Verwendung bestimmter Katalysatoren hergestellt wurden und ein Molekulargewicht von über 70 000 aufweisen.To produce fine threads from aliphatic polyolefins, the polymerization products of aliphatic olefins with 2 to 5 carbon atoms, i.e. the polymers of ethylene, propylene, butylenedpentene, in oils consisting essentially of paraffin and naphthenic hydrocarbons, which under the name of mineral oil, gas oil, spindle oil white oil, paraffin oil, among others in the trade are resolved to a maximum of 18 ° / 0 solution and then spun this solution. So-called low-pressure polyolefins, which have been produced using certain catalysts and have a molecular weight of over 70,000, are used to produce these spinning solutions.

Bei der Herstellung der Spinnlösung ist es für die Durchführung eines kontinuierlich ablaufenden Spinnprozesses unerläßlich, daß zunächst ein gewisser Vorrat der Dispersion — bestehend aus dem Lösungsmittel und dem Polymerisat — hergestellt wird, aus der die zur Verarbeitung benötigte Menge durch einfaches Erhitzen sofort in eine brauchbare Spinnlösung übergeführt werden kann. Es zeigte sich nun während der Durchführung des obenerwähnten Verfahrens über einen längeren Zeitraum hinweg, daß bei der Herstellung der Dispersion unter Verwendung einiger Paraffinöle, welche an sich eine besonders gute Lösewirkung für Polyolefine zeigen, trotz ständigen Rührens ein rasches Absetzen des Polymerpulvers erfolgt. Diese Erscheinung ist insofern nachteilig, weil hierdurch erne gleichbleibende Konzentration der aus dieser Dispersion gewonnenen Spinnlösung nicht immer garantiert ist.In the production of the spinning solution, it is necessary to carry out a continuously running spinning process It is essential that first a certain supply of the dispersion - consisting of the solvent and the polymer - is made from which the amount required for processing is simply heated can be converted immediately into a usable spinning solution. It was now revealed during the implementation of the above-mentioned method over a longer period of time that in the production of the Dispersion using some paraffin oils, which in themselves have a particularly good dissolving effect for polyolefins show that the polymer powder settles rapidly despite constant stirring. This phenomenon is insofar disadvantageous because this results in a constant concentration of the spinning solution obtained from this dispersion is not always guaranteed.

Es wurde nun gefunden, daß man das nachteilige Absetzen des Polyolefinpulvers aus der kalten Dispersion in Paraffin- und ähnlichen Ölen verhindern kann und homogene Spinnlösungen, die sich einwandfrei zu Fäden verarbeiten lassen, gewinnt, wenn man zunächst durch Auflösen der Polymerisate in den Ölen eine höchstens 2°/0ige Lösung zubereitet, die sodann nach Hinzufügen weiterer Polyolefine durch Erhitzen in eine höchstens 18°/0ige Lösung umgewandelt und versponnen wird. Man geht im einzelnen dabei so vor, daß man die Polymerisate bei erhöhter Temperatur in den Ölen auflöst. Beim Erkalten bildet sich eine homogene Dispersion. In dieser wird nun weiteres Polymerisat dispergiert, so daß die Konzentration höchstens 18 °/0 beträgt. Diese Dispersion ist haltbar und zeigt keine Neigung zum Absetzen des Polymerisats. Bei Gebrauch wird sie durch Erhitzen in eine Lösung übergeführt, die sofort versponnen werden kann. Zur Bereitung der höchstens 2%igen Lösung kann sowohl Niederdruckpolyolefin als auch Hochdruckpolyolefin verwendet werden, während für die höchstens 18%ige Lösung in jedem Falle Niederdruckpolyolefin eingesetzt wird.It has now been found that the disadvantageous settling of the polyolefin powder from the cold dispersion in paraffin and similar oils can be prevented and homogeneous spinning solutions which can be processed properly into threads are obtained if at most one is initially obtained by dissolving the polymers in the oils 2 ° / 0 solution prepared, the other then to add polyolefins is converted by heating to a maximum of 18 ° / 0 solution and spun. The procedure in detail is that the polymers are dissolved in the oils at an elevated temperature. A homogeneous dispersion forms when it cools down. Further polymer is now dispersed in this, so that the concentration is at most 18 ° / 0 . This dispersion is stable and shows no tendency for the polymer to settle. In use, it is converted into a solution by heating, which can be spun immediately. Both low-pressure polyolefin and high-pressure polyolefin can be used to prepare the maximum 2% solution, while low-pressure polyolefin is used in each case for the maximum 18% solution.

Der Vorteil der erfindungsgemäßen Verfahrensweise besteht darin, daß durch Zusetzen von Polymerisat zu Verfahren zur Herstellung
von feinen Fäden aus hochmolekularen,
aliphatischen Polyolefinen :The advantage of the procedure according to the invention is that by adding polymer to processes for production
of fine threads from high molecular weight,
aliphatic polyolefins:

Anmelder:Applicant:

Vereinigte Glanzstoff-Fabriken A.G.,
Wuppertal-Elberfeld, Am LaurentiusplatzUnited Glanzstoff-Fabriken AG,
Wuppertal-Elberfeld, Am Laurentiusplatz

Dr. Wolfgang Jurgeleit, Aschaffenburg,
ist als Erfinder genannt wordenDr. Wolfgang Jurgeleit, Aschaffenburg,
has been named as the inventor

der in erster Stufe hergestellten 2%igen Lösung in der Kälte eine Dispersion erhalten wird, die keine Neigung zum Absetzen des Polymerisats zeigt, so daß beim Erhitzen erne Spinnlösung mit gleichmäßiger Konzentration erhalten wird. Hierdurch ist es auch möglich, größere Mengen der 18°/0igen kalten Dispersion zu lagern und nur jeweils die gewünschte Menge durch Erhitzen in homogene Spinnlösung zu überführen.the 2% solution prepared in the first stage in the cold a dispersion is obtained which shows no tendency for the polymer to settle, so that when heated erne spinning solution is obtained with a uniform concentration. This also makes it possible to store larger quantities of the 18 ° / 0 cold solution of dispersion, and in each case only to transfer the desired amount by heating in homogeneous spinning solution.

Beispiel 1example 1

In einem Gasöl vom Siedepunkt 225 bis 230° C wird ein Niederdruckpolyäthylen vom Molekulargewicht 125 000 bei 18O0C zu einer 0,5%igen Lösung aufgelöst. Diese Polyäthylenlösung wird nach dem Abkühlen zur Bereitung einer Dispersion verwendet. Dazu werden 14 Gewichtsprozent Niederdruckpolyäthylenpulver vom Molekulargewicht 125 000 in die Dispersion eingerührt. Die so bereitete Dispersion zeigt berm Stehen erst nach 24 Stunden eine Neigung zum Absetzen.In a gas oil of boiling point 225-230 ° C, a low pressure polyethylene of molecular weight 125 000 at 18O 0 C is dissolved in a 0.5% solution. This polyethylene solution is used to prepare a dispersion after cooling. For this purpose, 14 percent by weight of low-pressure polyethylene powder with a molecular weight of 125,000 is stirred into the dispersion. The dispersion prepared in this way shows a tendency to settle on standing only after 24 hours.

Die Dispersion wird in die Apparatur entsprechend der Zeichnung eingefüllt. Sie befindet sich zunächst in dem auf 20° C gekühlten Dispersionskessel 1, der unter 3atü ernes Gases (Stickstoff oder Preßluft) steht. Der Gaseintritt befindet sich bei 2. Der Dispersionskessel enthält einen Rührer 3, der mit der Löseschnecke 4 fest verbunden ist und sich mit derselben Geschwindigkeit wie die Schnecke dreht. Parallel zur Löseschnecke 4 befindet sich eine zweite Schnecke 10, so daß durch die intensive Knetwirkung der Doppelschnecke eine besonders gute und rasche Lösung erzielt wird. Der obere Teil der Löseschnecke und der Dispersionskessel sind von einem Kühlmantel 5 umgeben. Der untere Teil der Schnecke ist von einem Heizmantel 6 umgeben, der auf 200° C aufgeheizt ist. Sobald die Dispersion aus dem Dispersionskessel nach unten in den heißen Bereich der Schnecke gefördert wird, geht die Dispersion in eine Lösung über. Diese Lösung tritt zunächst durch denThe dispersion is poured into the apparatus as shown in the drawing. It is initially in the dispersion kettle 1, cooled to 20 ° C., which is under 3atü ernes gas (nitrogen or compressed air). Of the The gas inlet is at 2. The dispersion kettle contains a stirrer 3, which is fixed with the loosening screw 4 connected and rotating at the same speed as the screw. Parallel to the loosening screw 4 there is a second screw 10, so that a special one due to the intensive kneading effect of the twin screw good and quick solution is achieved. The upper part of the loosening screw and the dispersion tank are from surrounded by a cooling jacket 5. The lower part of the screw is surrounded by a heating jacket 6, which on 200 ° C is heated. As soon as the dispersion from the dispersion kettle down into the hot area of the Screw is conveyed, the dispersion goes into a solution. This solution occurs first through the

009 508/393009 508/393

Pumpenblock 7 in die Spinnpumpe 8 ein und wird dann zur Spinndüse 9 gefördert. Pumpenblock und Spinndüse sind ebenfalls auf 2000C geheizt.Pump block 7 enters spinning pump 8 and is then conveyed to spinneret 9. Pump block and spinneret are also heated to 200 0 C.

Die im heißen Teil der Schnecke erzeugte 14,5%ige Spinnlösung wird mit einer Geschwindigkeit von 14,4 ccm/min mit Hilfe der Spinnpumpe durch die 30-Loch-Düse versponnen. Die Düsenöffnungen besitzen einen Durchmesser von je 200,«. Die aus der Düse tretenden Fäden werden nach Durchlaufen einer 10 cm längen Luftstrecke durch ein 20° C warmes Fällbad aus Propanol geführt und anschließend in ein 4 m langes Waschbad mit Petroläther geleitet. Anschließend werden die Fäden in einem 4 m langen Heißwasserbad bei 95° C auf das Doppelte ihrer Länge verstreckt. Danach werden die Fäden nochmals in einem Petroläther-Waschrohr gewaschen und schließlich in einem heißen Glycerinbad bei 124° C auf das Vierfache verstreckt (Gesamtverstreckung also achtfach).The 14.5% spinning solution generated in the hot part of the screw is released at a speed of 14.4 ccm / min spun through the 30-hole nozzle with the aid of the spinning pump. Have the nozzle openings a diameter of 200 "each. The threads emerging from the nozzle are, after passing through a 10 cm Extend the air gap through a 20 ° C precipitation bath Propanol passed and then passed into a 4 m long wash bath with petroleum ether. Then be stretched the threads in a 4 m long hot water bath at 95 ° C to double their length. After that will be the threads were washed again in a petroleum ether washing tube and finally in a hot glycerine bath stretched four times at 124 ° C. (total stretching eight times).

Die erhaltenen Fäden zeigen eine Festigkeit von 100 Rkm bei 6 % Dehnung und einen Einzeltiter von rund 1,4 den.The threads obtained show a strength of 100 Rkm at 6% elongation and a single titer of around 1.4 den.

Beispiel 2Example 2

In einem Gasöl vom Siedepunkt 225 bis 230° C wird I0I0 Hochdruckpolyäthylen vom Molekulargewicht 50 000 bei 150°C aufgelöst. Das Lösen erfordert 5 Minuten. In die beim Abkühlen entstehende Dispersion werden 13 Gewichtsprozent Niederdruckpolyäthylen vom Molekulargewicht 150 000 eingerührt. Die erhaltene Dispersion zeigt auch nach 24stündigem Stehen kein merkliches Absetzen. I 0 I 0 high-pressure polyethylene with a molecular weight of 50,000 is dissolved at 150 ° C. in a gas oil with a boiling point of 225 to 230.degree. Solving takes 5 minutes. 13 percent by weight of low-pressure polyethylene with a molecular weight of 150,000 is stirred into the dispersion formed on cooling. The dispersion obtained shows no noticeable settling even after standing for 24 hours.

Die Dispersion wird entsprechend den Angaben im Beispiel 1 zunächst in einen Dispersionskessel geleitet. Die weitere Aufarbeitung der Dispersion bis zur Spinnlösung und die anschließende Herstellung der Fäden geschieht mit der gleichen Vorrichtung, die im Beispiel 1 beschrieben ist. Die durch das 4 m lange, Petroläther enthaltende Waschbad geleiteten Fäden gelangen sofort in ein auf 124° C erhitztes Glycerinbad und werden dort auf das Achtfache der ursprünglichen Länge verstreckt, ίο Man erhält Fäden von einer Festigkeit von 84 Rkm bei 14% Dehnung und einem Einzeltiter von rund 2,3 den.The dispersion is first passed into a dispersion kettle as described in Example 1. The further processing of the dispersion up to the spinning solution and the subsequent production of the threads is done with the same device that is described in Example 1. The by the 4 m long, petroleum ether Filaments containing a washing bath are immediately placed in a glycerine bath heated to 124 ° C. and are there stretched to eight times the original length, ίο You get threads with a strength of 84 Rkm at 14% elongation and a single titer of around 2.3 den.

Claims (2)

PATENTANSPEÜCHE:PATENT CLAIMS: 1. Verfahren zur Herstellung von Fäden aus hochmolekularen Polyolefinen, wobei eine höchstens 18°/0ige Lösung von Polymerisationsprodukten von aliphatischen Olefinen mit 2 bis 5 C-Atomen in Ölen, welche aus Paraffin- und/oder Naphthenkohlenwasserstoffen bestehen, in Bädern aus Alkoholen und bzw.1. A process for preparing filaments from high molecular weight polyolefins, wherein a maximum of 18 ° / 0 solution of polymerization products of aliphatic olefins having 2 to 5 carbon atoms in oils which are composed of paraffinic and / or naphthenic hydrocarbons, in baths of alcohols and respectively. ao oder Äthern versponnen wird, dadurch gekenn zeichnet, daß man zunächst durchAuflösen der Polymerisate in den Ölen eine höchstens 2°/0ige Lösung zubereitet, die sodann nach Hinzufügen weiterer Mengen Polyolefinen durch Erhitzen in eine höchstensao is spun or ethers, characterized in that firstly the polymers in the oils prepared by dissolving a maximum of 2 ° / 0 solution, which then after adding further quantities of polyolefins by heating in an at most as 18°/0ige Lösung umgewandelt und versponnen wird.is converted as 18 ° / 0 solution and spun. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man mit einem nach einem Hochdruckverfahren erzeugten Polyolefin eine höchstens 2°/0ige Lösung in Öl herstellt und diese sodann nach Zusatz von Niederdruckpolyolefinen durch Erhitzen in eine höchstens 18°/oige Lösung umwandelt.2. The method according to claim 1, characterized in that one produces a generated by a high pressure process polyolefin has a maximum of 2 ° / 0 solution in oil and this then after addition of Niederdruckpolyolefinen by heating to a maximum of 18 ° / o solution transforms. Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 009 508/393 +. 60'© 009 508/393 +. 60 '
DEV11633A 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight, aliphatic polyolefins Pending DE1081185B (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
BE562603D BE562603A (en) 1956-12-08
BE556923D BE556923A (en) 1956-12-08
BE570563D BE570563A (en) 1956-12-08
DEV13156A DE1040179B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process
DEV11633A DE1081185B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight, aliphatic polyolefins
CH356864D CH356864A (en) 1956-12-08 1957-05-09 Process for the production of fine threads from high molecular weight aliphatic polyolefins
FR1175772D FR1175772A (en) 1956-12-08 1957-05-24 Process for producing fine filaments of macromolecular aliphatic polyolefins
GB18883/57A GB824432A (en) 1956-12-08 1957-06-14 A process for the production of fine threads from aliphatic polyolefines of high molecular weight
DEV10789A DE1024201B (en) 1956-12-08 1957-09-24 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process
CH359514D CH359514A (en) 1956-12-08 1957-11-18 Process for the production of fine threads from high molecular weight, aliphatic polyolefins
FR752698A FR72531E (en) 1956-12-08 1957-11-29 Process for producing fine filaments of macromolecular aliphatic polyolefins
GB38040/57A GB845374A (en) 1956-12-08 1957-12-06 A process for the production of fine threads from aliphatic polyolefines of high molecular weight
CH358895D CH358895A (en) 1956-12-08 1958-08-13 Process for the production of fine threads from high molecular weight aliphatic polyolefins
FR772951A FR74123E (en) 1956-12-08 1958-08-22 Process for producing fine filaments of macromolecular aliphatic polyolefins
GB30371/58A GB851979A (en) 1956-12-08 1958-09-23 A process for the production of fine threads from aliphatic polyolefines of high molecular weight
US54406A US3048465A (en) 1956-12-08 1960-09-07 Polyolefin wet spinning process

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEV11633A DE1081185B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight, aliphatic polyolefins
DEV13156A DE1040179B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process
DEV10789A DE1024201B (en) 1956-12-08 1957-09-24 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process

Publications (1)

Publication Number Publication Date
DE1081185B true DE1081185B (en) 1960-05-05

Family

ID=27213262

Family Applications (3)

Application Number Title Priority Date Filing Date
DEV13156A Pending DE1040179B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process
DEV11633A Pending DE1081185B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight, aliphatic polyolefins
DEV10789A Pending DE1024201B (en) 1956-12-08 1957-09-24 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEV13156A Pending DE1040179B (en) 1956-12-08 1956-12-08 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEV10789A Pending DE1024201B (en) 1956-12-08 1957-09-24 Process for the production of fine threads from high molecular weight aliphatic polyolefins produced by a low pressure process

Country Status (6)

Country Link
US (1) US3048465A (en)
BE (3) BE556923A (en)
CH (3) CH356864A (en)
DE (3) DE1040179B (en)
FR (1) FR1175772A (en)
GB (3) GB824432A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
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NL245712A (en) * 1958-11-24 1900-01-01
NL243961A (en) * 1958-12-29
US3029124A (en) * 1959-08-24 1962-04-10 Koppers Co Inc Process for producing polyethylene monofilaments
US3017238A (en) * 1960-04-07 1962-01-16 Hercules Powder Co Ltd Method for solvent spinning polyolefins
US3161709A (en) * 1960-11-21 1964-12-15 Celanese Corp Three stage drawing process for stereospecific polypropylene to give high tenacity filaments
US3210452A (en) * 1962-11-06 1965-10-05 Monsanto Co Dry spinning of polyethylene
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CH356864A (en) 1961-09-15
GB851979A (en) 1960-10-19
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DE1024201B (en) 1958-02-13
CH358895A (en) 1961-12-15
BE562603A (en)
GB824432A (en) 1959-12-02
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US3048465A (en) 1962-08-07
BE570563A (en)
GB845374A (en) 1960-08-24

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