GB1441117A - Process for the preparation of polymers of ethylene - Google Patents

Process for the preparation of polymers of ethylene

Info

Publication number
GB1441117A
GB1441117A GB4756373A GB4756373A GB1441117A GB 1441117 A GB1441117 A GB 1441117A GB 4756373 A GB4756373 A GB 4756373A GB 4756373 A GB4756373 A GB 4756373A GB 1441117 A GB1441117 A GB 1441117A
Authority
GB
United Kingdom
Prior art keywords
oet
ethylene
alet
ticl
oct
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
GB4756373A
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.)
Ethylene-Plastique
Original Assignee
Ethylene-Plastique
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 Ethylene-Plastique filed Critical Ethylene-Plastique
Publication of GB1441117A publication Critical patent/GB1441117A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F10/02—Ethene

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

1441117 Ziegler catalysts in high pressure polymerization ETHYLENE PLASTIQUE 11 Oct 1973 [13 Oct 1972] 47563/73 Heading C3P Ethylene is homo- or copolymerized, e.g. with α-olefms or vinyl acetate) at a temperature above 150‹ C. and a pressure above 1000 bars in the presence of a catalyst comprising (a) a solid obtained by reacting a transition metal halogen compound with a compound of the formula wherein M is a metal of Groups Ia, IIa, IIb, IIIb or VIIa, X is a monovalent inorganic atom or group, R is a monovalent hydrocarbon group, m is the valency of M, n is an integer such that l#n#m, and (b) an organometallic compound, of a metal of Groups I to IV. The process is suitably carried out continuously with low residence times, and yields polymers having a narrow molecular weight distribution. In examples polyethylene is obtained from catalysts comprising (a) Mg(OEt) 2 -TiCl 4 or Mg(OEt) 2 -Al(OEt) 3 -TiCl 4 and (b) AlBu 3 , AlEt 3 , or AlEt 2 Cl, in most cases including prepolymerization step of contacting the catalyst with a G 12 -olefin cat, and using hydrogen in the polymerization.
GB4756373A 1972-10-13 1973-10-11 Process for the preparation of polymers of ethylene Expired GB1441117A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7236444A FR2202899B1 (en) 1972-10-13 1972-10-13

Publications (1)

Publication Number Publication Date
GB1441117A true GB1441117A (en) 1976-06-30

Family

ID=9105637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4756373A Expired GB1441117A (en) 1972-10-13 1973-10-11 Process for the preparation of polymers of ethylene

Country Status (9)

Country Link
JP (1) JPS5722925B2 (en)
BE (1) BE805758A (en)
BR (1) BR7307996D0 (en)
CA (1) CA1020699A (en)
DE (1) DE2350795C2 (en)
FR (1) FR2202899B1 (en)
GB (1) GB1441117A (en)
IT (1) IT995813B (en)
NL (1) NL7314062A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210734A (en) 1977-08-09 1980-07-01 Societe Chimique Des Charbonnages-Cdf Chimie Controlled ethylene polymerization process

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2342306A1 (en) * 1976-02-25 1977-09-23 Charbonnages Ste Chimique IMPROVED PROCESS FOR IONIC POLYMERIZATION OF ETHYLENE UNDER HIGH PRESSURE
DE3027885A1 (en) * 1979-07-24 1981-02-12 Mitsubishi Petrochemical Co POLYMERIZATION OF ETHYLENE
FR2538397A1 (en) * 1982-12-24 1984-06-29 Charbonnages Ste Chimique CONTINUOUS PROCESS FOR THE PRODUCTION OF HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723403A (en) * 1968-10-30 1973-03-27 Ici Ltd Olefine polymerization at high pressures using a dispersed ziegler-type catalyst
GB1275641A (en) * 1969-01-06 1972-05-24 Solvay Catalysts for the polymerisation and copolymerisation of olefins

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210734A (en) 1977-08-09 1980-07-01 Societe Chimique Des Charbonnages-Cdf Chimie Controlled ethylene polymerization process

Also Published As

Publication number Publication date
BE805758A (en) 1974-02-01
JPS4997089A (en) 1974-09-13
NL7314062A (en) 1974-04-16
FR2202899A1 (en) 1974-05-10
IT995813B (en) 1975-11-20
JPS5722925B2 (en) 1982-05-15
BR7307996D0 (en) 1974-07-25
DE2350795A1 (en) 1974-04-25
DE2350795C2 (en) 1985-04-25
FR2202899B1 (en) 1977-01-14
CA1020699A (en) 1977-11-08

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee