GB1441115A - Process for the preparation of ethylene polymers of controlled density - Google Patents

Process for the preparation of ethylene polymers of controlled density

Info

Publication number
GB1441115A
GB1441115A GB4756173A GB4756173A GB1441115A GB 1441115 A GB1441115 A GB 1441115A GB 4756173 A GB4756173 A GB 4756173A GB 4756173 A GB4756173 A GB 4756173A GB 1441115 A GB1441115 A GB 1441115A
Authority
GB
United Kingdom
Prior art keywords
ethylene
density
preparation
alcl
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
GB4756173A
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 GB1441115A publication Critical patent/GB1441115A/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
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene

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

Abstract

1441115 High pressure Ziegler polymerization ETHYLENE PLASTIQUE 11 Oct 1973 [13 Oct 1972] 47561/73 Heading C3P Ethylene is polymerized in the presence of a Ziegler catalyst in a continuous manner in a stirred reactor at a pressure of at least 500 bars and at a temperature of at least 200‹ C., the density of the polymer being adjusted by controlling the dwell time of the catalyst in the reactor to between 1 and 50 seconds. Examples use catalysts of TiC. 3 cocrystallized with AlCl 3 together with Et 2 AlCl and include hydrogen with the monomer. The results given include density, molecular weight distribution and the proportion of ethylene chains (resulting from copolymerization of butene-1 formed in situ).
GB4756173A 1972-10-13 1973-10-11 Process for the preparation of ethylene polymers of controlled density Expired GB1441115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7236442A FR2202897B1 (en) 1972-10-13 1972-10-13

Publications (1)

Publication Number Publication Date
GB1441115A true GB1441115A (en) 1976-06-30

Family

ID=9105635

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4756173A Expired GB1441115A (en) 1972-10-13 1973-10-11 Process for the preparation of ethylene polymers of controlled density

Country Status (9)

Country Link
JP (1) JPS5834483B2 (en)
BE (1) BE805756A (en)
BR (1) BR7307997D0 (en)
CA (1) CA1019899A (en)
DE (1) DE2350739C2 (en)
FR (1) FR2202897B1 (en)
GB (1) GB1441115A (en)
IT (1) IT995811B (en)
NL (1) NL7314061A (en)

Cited By (5)

* 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
US4342853A (en) * 1979-07-05 1982-08-03 Societe Chimique Des Charbonnages--Cdf Chimie Process for manufacturing ethylene polymers
US4396532A (en) 1981-11-25 1983-08-02 Societe Chimique Des Charbonnages S.A. Activator comprising a dialkylaluminum monofluoride for the polymerization of ethylene
US4537868A (en) * 1980-12-02 1985-08-27 Societe Chimique Des Charbonnages S.A. Catalyst containing an aromatic silicon compound for the polymerization of ethylene
US4621124A (en) * 1976-02-25 1986-11-04 Societe Chimique Des Charbonnages-Cdf Chimie Catalyst system for the polymerization of ethylene

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496670B1 (en) * 1980-12-23 1985-12-06 Charbonnages Ste Chimique ACTIVATOR COMPRISING A FLUORINATED COMPOUND FOR THE POLYMERIZATION OF ETHYLENE
FR2510586A1 (en) * 1981-07-30 1983-02-04 Charbonnages Ste Chimique HOMOGENEOUS CATALYST COMPRISING A TRANSITION METAL AND MAGNESIUM, PROCESS FOR PREPARING THE SAME AND APPLICATION THEREOF TO THE POLYMERIZATION OF ETHYLENE
FR2538396B1 (en) * 1982-12-24 1986-02-21 Charbonnages Ste Chimique CATALYTIC SYSTEM FOR USE IN A PROCESS FOR THE POLYMERIZATION OF ETHYLENE
US9340629B2 (en) * 2012-12-13 2016-05-17 Chevron Phillips Chemical Company Lp Polyethylene production with multiple polymerization reactors
US10029230B1 (en) 2017-01-24 2018-07-24 Chevron Phillips Chemical Company Lp Flow in a slurry loop reactor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2021952A6 (en) * 1968-10-30 1970-07-24 Ici Ltd

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4621124A (en) * 1976-02-25 1986-11-04 Societe Chimique Des Charbonnages-Cdf Chimie Catalyst system for the polymerization of ethylene
US4210734A (en) 1977-08-09 1980-07-01 Societe Chimique Des Charbonnages-Cdf Chimie Controlled ethylene polymerization process
US4342853A (en) * 1979-07-05 1982-08-03 Societe Chimique Des Charbonnages--Cdf Chimie Process for manufacturing ethylene polymers
US4537868A (en) * 1980-12-02 1985-08-27 Societe Chimique Des Charbonnages S.A. Catalyst containing an aromatic silicon compound for the polymerization of ethylene
US4396532A (en) 1981-11-25 1983-08-02 Societe Chimique Des Charbonnages S.A. Activator comprising a dialkylaluminum monofluoride for the polymerization of ethylene

Also Published As

Publication number Publication date
JPS4997087A (en) 1974-09-13
CA1019899A (en) 1977-10-25
NL7314061A (en) 1974-04-16
JPS5834483B2 (en) 1983-07-27
BR7307997D0 (en) 1974-07-25
DE2350739C2 (en) 1982-11-11
FR2202897B1 (en) 1976-05-21
FR2202897A1 (en) 1974-05-10
BE805756A (en) 1974-02-01
DE2350739A1 (en) 1974-04-18
IT995811B (en) 1975-11-20

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Legal Events

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