DE907462C - Process for the production of polyvinyl ethers - Google Patents

Process for the production of polyvinyl ethers

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Publication number
DE907462C
DE907462C DEB7059D DEB0007059D DE907462C DE 907462 C DE907462 C DE 907462C DE B7059 D DEB7059 D DE B7059D DE B0007059 D DEB0007059 D DE B0007059D DE 907462 C DE907462 C DE 907462C
Authority
DE
Germany
Prior art keywords
production
polyvinyl ethers
volatile
vinyl
catalyst
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
DEB7059D
Other languages
German (de)
Inventor
Dr Rudolf Gaeth
Dr August Schwab
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Priority to DEB7059D priority Critical patent/DE907462C/en
Application granted granted Critical
Publication of DE907462C publication Critical patent/DE907462C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F16/00Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical
    • C08F16/12Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical by an ether radical

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Description

Es ist bekannt, ungesättigte Kohlenwasserstoffe durch Leiten über in einem Reaktionsraum fest angeordnete Katalysatoren zu polymerisieren. Dabei «-erden Polymerisate von verhältnismäßig niedrigem Molekulargewicht und leicht- bis schwerölartiger Beschaffenheit erhalten.It is known to pass unsaturated hydrocarbons over to polymerize fixed catalysts in a reaction chamber. At the same time «-erden Polymers of relatively low molecular weight and light to heavy oil-like Preserved texture.

Es ist ferner bekannt, Vinyläther mittels satter reagierender Kondensationsmittel, insbesondere Friedel-Craftsscher Katalysatoren oder deren Aiilagerungsverbindungen an Alkohol, Äther u. dgl. zu polymerisieren.It is also known to use saturated reactive condensing agents, in particular Friedel-Crafts catalysts or their storage compounds to polymerize with alcohol, ether and the like.

Es wurde nun gefunden, daß man in technisch besonders einfacher Weise hochpolymere lösliche Polymerisate von Vinyläthern erhält, wenn inan die inonomeren Äther in einem einen flüchtigen Katalysator aus der Rahe der Halogenide der 3., 4.. oder ,. Gruppe des Periodischen Systems enthaltenden Raum zerstäubt.It has now been found that in a technically particularly simple manner highly polymeric, soluble polymers of vinyl ethers obtained if inan the inonomeren Ether in a volatile catalyst from the range of halides of the 3rd, 4 .. or,. Group of the periodic table containing space atomized.

Es können auf diese Weise Vinvläther allein oder beliebige Gemische der monomeren Äther mit oder ohne Lösungsmittelzusatz polymerisiert werden. Soweit feste Polymerisate entstehen. Zierden sie als feines Pulver gewonnen; sind die Produkte weich und klebrig, so können sie durch ein laufendes Band aufgenommen und auf diese Weise abgeführt werden. Die Polvmerisation kann so in technisch einfacher und bequemer Weise kontinuierlich ausgeführt werden.In this way, vinyl ether alone or any mixtures can be used of the monomeric ethers can be polymerized with or without the addition of solvents. So far solid polymers are formed. Adorn it obtained as a fine powder; are the products soft and sticky, so they can be picked up by a moving tape and onto this Way to be discharged. The polymerisation can thus be technically easier and more convenient Way to be run continuously.

Besonders vorteilhaft ist es, in Gegenwart von bei der Polvmerisationstemperatur flüchtigen, indifferenten Verdünnungsmitteln, z. B. Propan, Propylen, Vinylchlorid, Methylenchlori:d usw., zu polyinerisieren, weil sie bei der Poly merisation verdampfen und damit die Polymerisationswärme gleichmäßig abführen.It is particularly advantageous in the presence of at the polymerization temperature volatile, indifferent diluents, e.g. B. propane, propylene, vinyl chloride, Methylene Chlori: d etc. to be polymerized because they evaporate during the polymerization and thus dissipate the heat of polymerization evenly.

Die flüchtigen Katalysatoren können finit einem inerten Gas verdünnt und mit diesem im Gleich-oder Gegenstrom zugeführt und so leicht gleichmäßig dosiert werden.The volatile catalysts can be finely diluted with an inert gas and fed with this in cocurrent or countercurrent and thus easily dosed evenly will.

Nach dem Verfahren erhält man vollkommen farblose Polymerisate von höherem Polymerisationsgrad, als wenn man den Katalysator in die Vinyläther einführt, so wie es bisher bekannt zwar. Das gegebenenfalls zugesetzte Lösungsmittel kann wieder zurückgewonnen und das 'katalvsatorhaltige Gas im Kreislauf geführt werden.The process gives completely colorless polymers of higher degree of polymerization than when the catalyst is introduced into the vinyl ethers, as it is known so far. The optionally added solvent can recovered again and the 'katalvsatorhaltige gas can be recycled.

Das Verfahren wird an Hand der Zeichnung schematisch erläutert. In dieser bedeutet i das Vorratsgefäß für den Vinyläther, der durch die Düse :2 in den Polymerisationsraum hinein zerstäubt wird. Durch den Polynierisationsraum wird das den flüchtigen Katalysator enthaltende Gas, dem der Katalysator aus 6 zugeführt werden kann, mit Hilfe der Pumpe 5 hindurchgeleitet. Am hoden des Polymerisationsraumes befindet sich das laufende Band 4 zum Austragen des Polymerisats.The process is explained schematically on the basis of the drawing. In this means i the storage vessel for the vinyl ether, which comes through the nozzle: 2 in is atomized into the polymerization room. The polynization space becomes the gas containing the volatile catalyst to which the catalyst from FIG. 6 is fed can be passed through with the aid of the pump 5. At the testicle of the polymerization room is the running belt 4 for discharging the polymer.

Beispiel i 2 Teile Dekahvdronaphtliylvinylätlier werden mit i Teil Vinylchlorid vermischt. Das Gemisch wird durch eine Düse mit einer Geschwindigkeit von 6 1 je Stunde in einen Polvinerisationsraum, der Stickstoff mit 5 bis io Volurnprozent Dorfluorid enthält, hinein zerstäubt. Der polymere Dekahydronaphthylvinyläther fällt als farbloses Pulver mit nahezu theoretischer .ausbeute aus. Das verdampfte Vinylchlorid wird durch Kondensation wieder gewonnen. Das katalysatorhaltige Gas wird mit Hilfe einer Pumpe im Kreislauf geführt.Example i 2 parts of Dekahvdronaphtliylvinylätlier are with i part Vinyl chloride mixed. The mixture is passed through a nozzle at one speed of 6 liters per hour in a polarization room, the nitrogen with 5 to 10 percent by volume Contains dorofluoride, atomized into it. The polymer decahydronaphthyl vinyl ether falls as a colorless powder with an almost theoretical yield. The evaporated vinyl chloride is recovered through condensation. The catalyst-containing gas is with the help circulated by a pump.

Beispiele Ein Gemisch von i Teil Cvclohexvlvinvläther, i Teil V'inyläthyläther und i Teil Vinylclilorid wird, wie in Beispiel i beschrieben, zerstäubt. .11s Katalysatorgas wird ein mit io bis 15 Volumprozent Zinntetrachlorid beladener Stickstoffstrom im Kreislauf geleitet.EXAMPLES A mixture of 1 part cyclohexyl vinyl ether and 1 part vinyl ethyl ether and i part of vinyl chloride is atomized as described in example i. .11s catalyst gas a nitrogen stream charged with io to 15 percent by volume of tin tetrachloride is im Circulated.

Beispiel 3 2 Teile Vinylisobutyläther werden mit i Teil Propan bei -45° vermischt und dann in einem mit Stickstoff und io°/o Borfluorid gefüllten Gas-. rauen vernebelt. Das noch klebrige Produkt fällt auf ein endloses Band, polymerisiert dort aus und wird schließlich an .der Umkehrstelle des Bandes von Schabern abgenommen.Example 3 2 parts of vinyl isobutyl ether are mixed with 1 part of propane -45 ° mixed and then in a gas filled with nitrogen and 10% boron fluoride. rough fogged. The still sticky product falls onto an endless belt and polymerizes from there and is finally removed by scrapers at the reversal point of the belt.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von Polyvinyläthern, dadurch gekennzeichnet, daß man die monomeren Äther oder solche enthaltende Gemische, gegebenenfalls unter Zusatz von bei der Polymerisationstemperatur flüchtigen Lösungsmitteln, in einem einen flüchtigen Katalysator aus der Reihe der Halogenide der 3., 4. oder 5. Gruppe des Periodischen Systems enthaltenden Raum zerstäubt. Angezogene Druckschriften: USA.-Patentschrift Nr. 2 231 :231; britische Patentschrift Nr. 378 544-PATENT CLAIM: Process for the production of polyvinyl ethers, thereby characterized in that the monomeric ethers or mixtures containing them, optionally with the addition of solvents which are volatile at the polymerization temperature, in a volatile catalyst from the series of halides of the 3rd, 4th or 5th group of the periodic table containing space atomized. Referred publications: U.S. Patent No. 2,231: 231; British Patent No. 378 544-
DEB7059D 1941-12-28 1941-12-28 Process for the production of polyvinyl ethers Expired DE907462C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB7059D DE907462C (en) 1941-12-28 1941-12-28 Process for the production of polyvinyl ethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB7059D DE907462C (en) 1941-12-28 1941-12-28 Process for the production of polyvinyl ethers

Publications (1)

Publication Number Publication Date
DE907462C true DE907462C (en) 1954-03-25

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Application Number Title Priority Date Filing Date
DEB7059D Expired DE907462C (en) 1941-12-28 1941-12-28 Process for the production of polyvinyl ethers

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DE (1) DE907462C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033413B (en) * 1956-04-20 1958-07-03 Hercules Powder Co Ltd Process for the production of poly (vinyl ethers)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB378544A (en) * 1929-06-28 1932-08-18 James Yate Johnson Improvements in the manufacture and production of polymerisation products from vinylethers
US2231231A (en) * 1937-08-09 1941-02-11 Union Oil Co Process and apparatus for catalytic operations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB378544A (en) * 1929-06-28 1932-08-18 James Yate Johnson Improvements in the manufacture and production of polymerisation products from vinylethers
US2231231A (en) * 1937-08-09 1941-02-11 Union Oil Co Process and apparatus for catalytic operations

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033413B (en) * 1956-04-20 1958-07-03 Hercules Powder Co Ltd Process for the production of poly (vinyl ethers)

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