DE1745027A1 - Process for the polymerization of ethylene - Google Patents

Process for the polymerization of ethylene

Info

Publication number
DE1745027A1
DE1745027A1 DE19681745027 DE1745027A DE1745027A1 DE 1745027 A1 DE1745027 A1 DE 1745027A1 DE 19681745027 DE19681745027 DE 19681745027 DE 1745027 A DE1745027 A DE 1745027A DE 1745027 A1 DE1745027 A1 DE 1745027A1
Authority
DE
Germany
Prior art keywords
ethylene
polymerization
pressure
temperature
initiator
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
DE19681745027
Other languages
German (de)
Inventor
Ballard Denis George Harold
Till Medinger
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of DE1745027A1 publication Critical patent/DE1745027A1/en
Pending legal-status Critical Current

Links

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
    • C08F10/00Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond

Landscapes

  • 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)
  • Polymerisation Methods In General (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (1)

PatentansprücheClaims 1. Verfahren zur Polymerisation von Äthylen, dadurch gekennzeichnet, daß man Äthylen in Berührung mit einem Initiator unter einem Druck von mindestens 1 000 at. bringt, der aus einer -Allylverbindung eines 'JbergangsmetalIs der Gruppen IVA bis VIA der Tabelle des periodischen Systems besteht.1. A process for the polymerization of ethylene, characterized in that that ethylene is in contact with an initiator under a pressure of at least 1,000 at from an allyl compound of a transition metal of the groups IVA to VIA of the periodic table. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Temperatur und der Druck so aufeinander abgestimmt werden, daß das Reaktionsgenisch eine einzige flüssige Phase bildet.2. The method according to claim 1, characterized in that the Temperature and pressure are coordinated so that that the reaction mixture forms a single liquid phase. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß 'das Äthylen durch eine EeaktIonszone, in der die Reaktions kontinuierlich erfolgt, bei einem Druck von nicht weniger als 1 600 at. und einer Temperatur von nicht weniger als 1250G geleitet xirird und daß eine -n -Allylübörgangsmetallverbindung in diese Zone eingeführt wird, um die Polymerisation zu initiieren, wobei die Temperatur und der Druck derart aufeinander abgestimmt werden, daß das aus Monomer und Polymer bestehende Reaktionsgemisch als eine einzige flüssige Phase vorliegt und als solche bleibt, bis es von \ der Reaktionszone abgeführt wird.Process according to claim 2, characterized in that the ethylene is passed through an reaction zone in which the reaction takes place continuously at a pressure of not less than 1,600 at. And a temperature of not less than 125 0 G and that a - n -Allylübörgangsmetallverbindung is introduced into this zone in order to initiate the polymerization, the temperature and pressure are matched to one another that consists of monomer and polymer synthesis mixture is present as a single liquid phase and remains as such until it by \ of Reaction zone is discharged. Verfahren nach Anspruch 3i dadurch gekennaeichnet, daß als Initiator eine -n -AlIyIÜbergangsmetallverbindung ver wendet wird, die eine solche Aktivität besitzt, daß s4.e zur Polymerisation von mindestens 7 500 Mol Äthylen pro Mol Initiator unter den Polymerisationsbedingungen in einer Verweilzeit von Höchstens 6 Minuten führt, z.B. Tris-(-n-2-methallyi) chrom.Process according to claim 3i, characterized in that an -n -AlIyIübergangsmetallverbindungen is used as initiator, which has such an activity that s4.e for the polymerization of at least 7,500 moles of ethylene per mole of initiator under the polymerization conditions in a residence time of at most 6 minutes leads, e.g. Tris - (- n-2-methallyi) chrom. Vom Deutechen Patentamt
ohno jede Gaw&hr herg»-
From the German Patent Office
anyway every Gaw & hr herg »-
-etc.it.to Abschrift von Unter- - 15 - -etc.it.to copy of under- - 15 - t*O®n, dio -ur fotomoeba- 209 8 46V 0947. 't * O®n, dio -ur fotomoeba- 209 8 46V 0947. ' niohtnioht 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß ein Kettenübertragungsmittel, z.B. Wasserstoff, dem Polymerisationsgemisch beigemengt wird.5. The method according to any one of claims 1 to 4, characterized in that that a chain transfer agent, e.g., hydrogen, is added to the polymerization mixture. 6. Verfahren nach einem der Ansprüche 1 bis 5» dadurch gekennzeichnet, daß ein Comonomer mit dem Äthylen copolymerisiert wird.6. The method according to any one of claims 1 to 5 »characterized in that that a comonomer is copolymerized with the ethylene. Vom Deutschen Paiontamt OhnO jede G'iiVVÄhf hci.r£.»O-st <3::io A.t3f.,o'r.7ift von Unterlagen, dia :zur fDtomechanisc-nen VViociergaDe nicht geeignet sind. From the German Paiontamt OhnO every G'iiVVÄhf hci. r £. »O-st <3 :: io A.t3f., o'r.7ift of documents that : are not suitable for fDtomechanical VViociergaDe. 209846/0947209846/0947 BAD ohigiNAl BAD ohigi NAl
DE19681745027 1967-03-06 1968-03-05 Process for the polymerization of ethylene Pending DE1745027A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1046467A GB1145958A (en) 1967-03-06 1967-03-06 Ethylene polymerisation
GB5791167 1967-12-20

Publications (1)

Publication Number Publication Date
DE1745027A1 true DE1745027A1 (en) 1972-11-09

Family

ID=26247535

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681745027 Pending DE1745027A1 (en) 1967-03-06 1968-03-05 Process for the polymerization of ethylene

Country Status (8)

Country Link
AT (1) AT282188B (en)
BE (1) BE711759A (en)
DE (1) DE1745027A1 (en)
ES (1) ES351273A1 (en)
FR (1) FR1561515A (en)
GB (1) GB1145958A (en)
IL (1) IL29595A (en)
NL (1) NL6803022A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608863A1 (en) * 1976-03-04 1977-09-08 Basf Ag Ethylene polymerisation using Ziegler catalyst system - contg. bis-cyclopentadienyl-titanium di-alkyl cpd., aluminium tri-alkyl cpd. and water
DE19701926A1 (en) * 1997-01-21 1998-07-23 Rieter Automatik Gmbh Strand granulator feeding cutters through pair of drive rollers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3150270A1 (en) * 1981-12-18 1983-06-30 EC Erdölchemie GmbH, 5000 Köln High-pressure polymerisation of ethylene

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608863A1 (en) * 1976-03-04 1977-09-08 Basf Ag Ethylene polymerisation using Ziegler catalyst system - contg. bis-cyclopentadienyl-titanium di-alkyl cpd., aluminium tri-alkyl cpd. and water
DE19701926A1 (en) * 1997-01-21 1998-07-23 Rieter Automatik Gmbh Strand granulator feeding cutters through pair of drive rollers
DE19701926C2 (en) * 1997-01-21 2000-01-20 Rieter Automatik Gmbh Granulating device for strand materials

Also Published As

Publication number Publication date
NL6803022A (en) 1968-09-09
BE711759A (en) 1968-09-06
FR1561515A (en) 1969-03-28
IL29595A (en) 1971-02-25
AT282188B (en) 1970-06-25
ES351273A1 (en) 1969-06-01
GB1145958A (en) 1969-03-19

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