DE701001C - Process for the production of artificial structures from polyvinyl alcohol - Google Patents

Process for the production of artificial structures from polyvinyl alcohol

Info

Publication number
DE701001C
DE701001C DE1931C0050578 DEC0050578D DE701001C DE 701001 C DE701001 C DE 701001C DE 1931C0050578 DE1931C0050578 DE 1931C0050578 DE C0050578 D DEC0050578 D DE C0050578D DE 701001 C DE701001 C DE 701001C
Authority
DE
Germany
Prior art keywords
polyvinyl alcohol
production
artificial structures
water
solutions
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
DE1931C0050578
Other languages
German (de)
Inventor
Dr Wolfram Haehnel
Dr Willy O Herrmann
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.)
CHEMISCHE FORSCHUNGS GmbH
Original Assignee
CHEMISCHE FORSCHUNGS GmbH
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 CHEMISCHE FORSCHUNGS GmbH filed Critical CHEMISCHE FORSCHUNGS GmbH
Priority to DE1931C0050578 priority Critical patent/DE701001C/en
Application granted granted Critical
Publication of DE701001C publication Critical patent/DE701001C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/01—Hydrocarbons
    • 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
    • D01F6/14—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Description

Verfahren zur Herstellung von künstlichen Gebilden aus Polyvinylalkohol Aus wäßrigen Lösungen von Polyvinylalkoholen oder ihren Anquellungen bzw. Verpastungen mit Wasser können geformte Gebilde, wie Fäden, Bänder, Filme, Röhren, Platten, Knöpfe, Schalen und Kapseln, hergestellt werden. je nach demVerwendungszweck können diese Gebilde durch Weichmacher modifiziert werden, so daß beispielsweise die Röhren die Eigenschaften biegsamer Schläuche annehmen, die Verarbeitung der Fäden zu Textilgeweben erleichtert wird usw. Es können auch Füllstoffe, Trägerstoff-e, wie Textilgewebe aus anderem Werkstoff, Einlagen u. dgl. verwendet bzw. durch Imprägnierung mit Polyvinylalkohollösungen in die gewünschten geformten Gebilde übergeführt werden.Process for the production of artificial structures from polyvinyl alcohol From aqueous solutions of polyvinyl alcohols or their swellings or pastes Shaped structures such as threads, ribbons, films, tubes, plates, buttons, Trays and capsules. depending on the intended use, these Structures are modified by plasticizers, so that, for example, the tubes Adopt the properties of flexible hoses, processing the threads into textile fabrics is facilitated, etc. It can also fillers, carrier materials, such as textile fabrics Made of a different material, inserts and the like used or by impregnation with polyvinyl alcohol solutions be converted into the desired shaped structure.

Es wurde nun gefunden, de unter Umständen die Herstellung der Fäden u. dgl. dadurch erleichtert bzw. vervollkommnet werden kann, daß man den zu verarbeitenden Lösungen, Pasten oder Suspensionen Stoffe zusetzt, die Dieb Verfestigung des geformt-en Gebildes durch Förderung der Wasserverdunstung beeinflussen.It has now been found, de circumstances and the production of the filaments. Like. Facilitated and can be perfected in that the adding to processing solutions, pastes or suspensions substances thief solidification influence of the molded-en formation by promoting the evaporation of water .

Als die Wasserverdunstung fördernde Mittel kommen leichtflüchtige organische Stoffe, beispielsweise Alkohole, Ester, Ketonee und Chlorkohlenwasserstoffe, in Betracht, als sonstige die Gelbildung beeinflussende Stoffe die aus der Kolloidchemie bekannten Zusätze von Elektrolyten, Koagulationsmitteln, Gerbstoffen, Schutzkolloiden, Stabilisatoren,- Dispergiermitteln u. dgl.Highly volatile agents are used to promote water evaporation organic substances, for example alcohols, esters, ketones and chlorinated hydrocarbons, Considered other substances influencing gel formation are those from colloid chemistry known additives of electrolytes, coagulants, tannins, protective colloids, Stabilizers, dispersants and the like

Beispiel 45 Teile hochmolekularer Polyvinvialkohol werden mit einem Gemisch von 4o Teilen Wasser und 15 Teilen Spiritus zu einer homogenen-Paste verarbeitet. Diese Paste wird in einen Autoklaven gebracht, der mit einer Auspreßdüse von o,6 min öffnung mit Regulierventil sowie einer Zuführung für komprimierten Stickstoff versehen ist. Zunächst wird die Masse in dem geschlossenen Autoklaven einige Zeit auf ungefähr 130' erhitzt, um die Auflösung des Polyvinylalkohols zu vervollständigen und das Preßgut blasenfrei zu machen. Dann -wird der Autoklav unter einen Druck von etwa ioo Atmosphären gesetzt und das Düsenventil geöffnet. Unter Regulierung der Ausflußgeschwindigkeit mit dem Regulierventil wird der austretende Faden aufgehaspelt. Der Austrocknungsvorgang kann dabei durch Entgegenblasen von erwärmter Luft beschleunigt werden. Man erhält einen seidenähnlichen Faden von großer Reiß- und Biegefestigkeit, desseh geringe Quellbarkeit in Wasser beispielsweise durch eine Nachbehandlung mit'Dämpfen von Formaldehyd, zweckmäßig bei erhöhterTemperatur,beseitigt werden kann.Example 45 parts of high molecular weight polyvinyl alcohol are mixed with a Mixture of 40 parts of water and 15 parts of alcohol processed into a homogeneous paste. This paste is placed in an autoclave, which is equipped with an extrusion nozzle of 0.6 min opening with regulating valve and a feed for compressed nitrogen is provided. First, the mass in the closed autoclave for some time heated to about 130 'to complete dissolution of the polyvinyl alcohol and to make the pressed material free of bubbles. Then - the autoclave is pressurized of about 100 atmospheres and the nozzle valve opened. Under regulation the outflow speed with the regulating valve, the emerging thread is wound up. The drying process can be accelerated by counter-blowing heated air will. A silk-like thread of great tensile strength and flexural strength is obtained, its low swellability in water, for example through post-treatment with 'steaming of formaldehyde, expediently at elevated temperature, can be removed.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung künstlicher Gebilde, wie Fäden, Bänder, Filme, Röhren, Schläuche, Platten, Knöpfe und Schalen, durch formgebende Verarbeitung wäßriger Lösungen von Polyvinylalkoholen oder ihren Anquellungen bzw. Verpastungen mit Wasser, dadurch gekennzeichnet, daß man den Lösungen oder Pasten des Polyvinylalkohols Stoffe zusetzt, die die Verfesti,-ung des geformten Gebildes durch Förderung der Wasserverdunstung beein-:Russen. PATENT CLAIM: Process for the production of artificial structures, such as threads, ribbons, films, tubes, hoses, plates, buttons and shells, by shaping processing of aqueous solutions of polyvinyl alcohols or their swelling or pasting with water, characterized in that the solutions or pastes are used of polyvinyl alcohol adds substances that affect the solidification of the formed structure by promoting water evaporation: Russen.
DE1931C0050578 1931-10-16 1931-10-16 Process for the production of artificial structures from polyvinyl alcohol Expired DE701001C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1931C0050578 DE701001C (en) 1931-10-16 1931-10-16 Process for the production of artificial structures from polyvinyl alcohol

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1931C0050578 DE701001C (en) 1931-10-16 1931-10-16 Process for the production of artificial structures from polyvinyl alcohol

Publications (1)

Publication Number Publication Date
DE701001C true DE701001C (en) 1941-01-06

Family

ID=7027205

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1931C0050578 Expired DE701001C (en) 1931-10-16 1931-10-16 Process for the production of artificial structures from polyvinyl alcohol

Country Status (1)

Country Link
DE (1) DE701001C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969053C (en) * 1951-05-16 1958-04-24 Dr Paul Halbig Process for the production of spinnable solutions from polyacrylonitrile
DE975539C (en) * 1943-06-23 1961-12-28 Du Pont Process for the production of stable, spinnable, essentially colorless solutions of polyacrylonitrile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975539C (en) * 1943-06-23 1961-12-28 Du Pont Process for the production of stable, spinnable, essentially colorless solutions of polyacrylonitrile
DE969053C (en) * 1951-05-16 1958-04-24 Dr Paul Halbig Process for the production of spinnable solutions from polyacrylonitrile

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