DE743607C - Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like - Google Patents

Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like

Info

Publication number
DE743607C
DE743607C DES127859D DES0127859D DE743607C DE 743607 C DE743607 C DE 743607C DE S127859 D DES127859 D DE S127859D DE S0127859 D DES0127859 D DE S0127859D DE 743607 C DE743607 C DE 743607C
Authority
DE
Germany
Prior art keywords
threads
wires
high polymer
production
coating
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
DES127859D
Other languages
German (de)
Inventor
Dr Phil Horst Mueller
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.)
Siemens AG
Original Assignee
Siemens 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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DES127859D priority Critical patent/DE743607C/en
Priority to FR839830D priority patent/FR839830A/en
Priority to GB1902938A priority patent/GB516447A/en
Application granted granted Critical
Publication of DE743607C publication Critical patent/DE743607C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/20Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to wires

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Description

Verfahren zur Herstellung eines Überzuges aus hochpolymerem Polystyrol auf Drähten, Fäden u. dgl. Hochmolekulare Kunststoffe sind bekanntlich zufolge ihrer im allgemeinen guten dielektrischen Eigenschaften als Isolierstolf für elektrische Zwecke ,äußerst geeignet. Sie werden hierfür z. B. in Form von Bändern oder Fäden verwendet, die auf die zu isolierenden Gegenstände gewickelt werden, lassen sich aber zum Teil auch im Spritzverfahren zu nahtlosen Hüllen verarbeiten. Jedoch ist hierzu einerseits die Anwendung von Druck und Wärme erforderlich; andererseits müssen den Kunststoffen Weichmacher zugesetzt werden, durch die die guten elektrischen und thermischen Eigenschaften herabgesetzt werden.Process for the production of a coating from high polymer polystyrene on wires, threads and the like generally good dielectric properties as insulating stolks for electrical Purposes, extremely suitable. You are z. B. in the form of ribbons or threads used, which are wound on the objects to be insulated, can but sometimes also process into seamless casings by spraying. However is this requires the use of pressure and heat on the one hand; on the other hand have to Plasticizers are added to the plastics, which make the good electrical and thermal properties are reduced.

Die Erfindung ermöglicht es, langgestreckte Formstränge, wie Fäden, Drähte u. dgl., und zwar insbesondere äußerst dünne Drähte, mit einem Überzug aus liochpo.lytnerem, insbesondere emulsionspolymerisiertem Polystyrol mit langkettigen Fadenmolekülen zu versehen, das keine Weichmacher enthält und wobei wed; r die Anwendung von Druck noch von Wärme erforderlich ist. Gemäß der Erfindung wird aus einer gelartigen Lösung, des hochpolymeren Styrols ein Faden gesponnen, in den gleichzeitig der zu umhüllende Formstrang eingezogen wird. Der Überzug kann dabei einschichtig oder, durch mehrfache Wiederholung des Verfahrens, auch mehrschichtig ausgeführt werden.The invention makes it possible to produce elongated shaped strands, such as threads, Wires and the like, in particular extremely thin wires, with a coating liochpo.lytnerem, especially emulsion-polymerized polystyrene with long-chain To provide thread molecules that does not contain plasticizers and where wed; r the application pressure nor heat is required. According to the invention, a gel-like Solution, the high polymer styrene spun a thread into which at the same time the to enveloping molding strand is drawn in. The coating can be single-layer or by repeating the procedure several times, also in multiple layers.

Zur Durchführung des Verfahrens dient eine Vorrichtung, die eine Spinndüse besitzt, aus der der Kunststoffaden ausgezogen wird und durch die zugleich der zu umhüllende Formstrang hindurchgeführt wird. Es empfiehlt sich, den Formstrang innerhalb der Spinndüse durch eine Führung zu zentrieren, tim eine allseitig gleiche Stärke der Umhüllung zu erzielen. Die Anordnung der Spiii.ndüse kann in beliebiger Weise erfolgen, vorzugsweise geschieht dies jedoch so, daß der Abzug in senkrechter Richtung, und zwar nach unten oder nach oben erfolgt, um auch nach Austritt aus der Spinndüse eine exzentrische Verlagerung des Formstranges im Kunststoltfaden vor der Verflüchtigung des Lösungsmittels zu verhüten.A device, which is a spinneret, is used to carry out the process possesses, from which the plastic thread is pulled out and through which at the same time the to enveloping molding strand is passed through. It is best to have the molding strand inside to center the spinneret by means of a guide, tim one all round to achieve the same thickness of the cladding. The arrangement of the spray nozzle can be in take place in any way, but preferably this is done so that the deduction in a vertical direction, namely downwards or upwards, to also after Exit from the spinneret is an eccentric displacement of the molding strand in the synthetic thread to prevent the solvent from evaporating.

Der fertige Überzug haftet nicht auf dem überzogenen Draht, sondern bildet einen selbständigen Schlauch, was auf den unpolaren und in der Kette doppelbindungsfreien Aufbau des Polystyrols zurückzuführen ist.The finished coating does not adhere to the coated wire, but rather forms an independent tube, which is due to the non-polar and double-bond-free in the chain Structure of the polystyrene is due.

Der gemäß der Erfindung hergestellte überzug zeichnet sich durch große Biegsamkeit und Elastizität aus, trotzdem er keiner eigentlichen Reckung unterzogen wurde. Dies ist darauf zurückzuführen, daß infolge der Herstellung doch eine gewisse Art der Ausrichtung der Moleküle eintritt. Diese Ausrichtung ist abhängig vom Verhältnis der Kettenlänge eines Moleküls zur Schichtdicke. Die Elastizität wird daher um so günstiger, je langkettiger das verwendete Polystyrol ist. Einen gewissen Einfluß auf die Elastizität haben auch die Abzugsgeschwindigkeit und die Viscositä.t der 'Lösung. Es ist aber selbstverständlich möglich, durch eine zusätzliche Reckung die mechanischen Eigenschaften des Drahtüberzuges weiter zu verbessern.The coating produced according to the invention is characterized by large Flexibility and elasticity, although it is not actually subjected to any stretching became. This is due to the fact that as a result of the production a certain Type of alignment of the molecules occurs. This orientation depends on the ratio the chain length of a molecule to the layer thickness. The elasticity will therefore be so cheaper, the longer the polystyrene used. Some influence The withdrawal speed and the viscosity also have an effect on the elasticity 'Solution. But it is of course possible by an additional stretching to further improve the mechanical properties of the wire coating.

In der Zeichnung ist die Erfindung an Hand eines Ausführungsbeispieles einer Vorrichtung zur Durchführung des Verfahrens gemäß der Erfindung näher erläutert. Der Behälter t enthält eine benzolische Lösung von ]angkettigem, beispielsweise emulsionspolymerisiertem Polystyrol. Durch eine am Grunde des Behälters angeordnete Spinndüse 2 wird ein Polystyrolfaden 3 gesponnen, in den gleichzeitig der vorher gut gereinigte und entfettete Draht 4. eingezogen wird. Dieser .Draht wird innerhalb der Düse 2 durch eine Führung 5 zentriert. Der Faden 3 bildet nach Verdunsten des Lösungsmittels einen Überzug auf dem Draht 4 in einer Dicke von wenigen hundertstel Millimetern.In the drawing, the invention is based on an exemplary embodiment an apparatus for performing the method according to the invention explained in more detail. The container t contains a benzene solution of an angular chain, for example emulsion polymerized polystyrene. By one arranged at the bottom of the container Spinneret 2, a polystyrene thread 3 is spun, in the same time the previously well cleaned and degreased wire 4. is drawn in. This .wire is inside the nozzle 2 centered by a guide 5. The thread 3 forms after the evaporation Solvent a coating on the wire 4 in a thickness of a few hundredths Millimeters.

Claims (1)

PATENTANSPRUCH Verfahren zur Herstellung eines überzuges aus hochpolymerem, insbesondere emulsionspolymerisiertem Polystyrol mit langkettigen Fadenmolekülen auf langgestreckten Formsträngen, wie Drähten, Fäden u. dgI., durch Hindurchziehen des Formstranges durch eine Lösung des Kunststoffes, gekennzeichnet durch die Verwendung einer weichmacherfreien gelartigen spinnfähigen Lösung des Kunststoffes. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind 'im Erteilungsverfahren folgende Druckschriften in Betracht gezogen worden: schweizerische Patentschrift . . Nr. 103 938; französische - 653 668; britische - , . - 398091.PATENT CLAIM A method for producing a coating of high polymer, in particular emulsion-polymerized polystyrene with long-chain thread molecules on elongated shaped strands, such as wires, threads and the like, by pulling the shaped strand through a solution of the plastic, characterized by the use of a plasticizer-free, gel-like spinnable solution of the plastic. To distinguish the subject matter of the application from the state of the art, the following publications were considered in the grant procedure: Swiss patent specification. . . No. 103,938; French - 653 668; British -,. - 398091.
DES127859D 1937-06-26 1937-06-26 Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like Expired DE743607C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DES127859D DE743607C (en) 1937-06-26 1937-06-26 Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like
FR839830D FR839830A (en) 1937-06-26 1938-06-25 Process for producing a coating of highly polymeric plastics on threads, filaments and the like
GB1902938A GB516447A (en) 1937-06-26 1938-06-27 Improvements in or relating to processes for the production of coatings of highly polymerised artificial materials on wires, threads and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES127859D DE743607C (en) 1937-06-26 1937-06-26 Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like

Publications (1)

Publication Number Publication Date
DE743607C true DE743607C (en) 1944-12-01

Family

ID=25945010

Family Applications (1)

Application Number Title Priority Date Filing Date
DES127859D Expired DE743607C (en) 1937-06-26 1937-06-26 Process for the production of a coating made of high polymer polystyrene on wires, threads and the like. like

Country Status (3)

Country Link
DE (1) DE743607C (en)
FR (1) FR839830A (en)
GB (1) GB516447A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980956A (en) * 1953-12-21 1961-04-25 Owens Corning Fiberglass Corp Metal applicators for glass filaments

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH103938A (en) * 1923-01-29 1924-03-17 Meirowsky & Co Aktiengesellsch Method for applying liquid substances to wire and thread-like bodies.
FR653668A (en) * 1927-05-11 1929-03-25 Aeg Method for obtaining a uniform coating on yarns and the like
GB398091A (en) * 1932-09-17 1933-09-07 Goodrich Co B F Improvements in or relating to resilient rubber-like compositions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH103938A (en) * 1923-01-29 1924-03-17 Meirowsky & Co Aktiengesellsch Method for applying liquid substances to wire and thread-like bodies.
FR653668A (en) * 1927-05-11 1929-03-25 Aeg Method for obtaining a uniform coating on yarns and the like
GB398091A (en) * 1932-09-17 1933-09-07 Goodrich Co B F Improvements in or relating to resilient rubber-like compositions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980956A (en) * 1953-12-21 1961-04-25 Owens Corning Fiberglass Corp Metal applicators for glass filaments

Also Published As

Publication number Publication date
GB516447A (en) 1940-01-02
FR839830A (en) 1939-04-13

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