IT995811B - PROCEDURE FOR ADJUSTING THE DENSITY OF A POLYETHYLENE PREPARED AT HIGH PRESSURE USING A ZIEGLER TYPE CATALYST - Google Patents

PROCEDURE FOR ADJUSTING THE DENSITY OF A POLYETHYLENE PREPARED AT HIGH PRESSURE USING A ZIEGLER TYPE CATALYST

Info

Publication number
IT995811B
IT995811B IT3004573A IT3004573A IT995811B IT 995811 B IT995811 B IT 995811B IT 3004573 A IT3004573 A IT 3004573A IT 3004573 A IT3004573 A IT 3004573A IT 995811 B IT995811 B IT 995811B
Authority
IT
Italy
Prior art keywords
density
procedure
adjusting
high pressure
type catalyst
Prior art date
Application number
IT3004573A
Other languages
Italian (it)
Inventor
J Machon
B Levresse
P Gloriod
Original Assignee
Ethylene Plastique Sa
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 Sa filed Critical Ethylene Plastique Sa
Application granted granted Critical
Publication of IT995811B publication Critical patent/IT995811B/en

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)
IT3004573A 1972-10-13 1973-10-12 PROCEDURE FOR ADJUSTING THE DENSITY OF A POLYETHYLENE PREPARED AT HIGH PRESSURE USING A ZIEGLER TYPE CATALYST IT995811B (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
IT995811B true IT995811B (en) 1975-11-20

Family

ID=9105635

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3004573A IT995811B (en) 1972-10-13 1973-10-12 PROCEDURE FOR ADJUSTING THE DENSITY OF A POLYETHYLENE PREPARED AT HIGH PRESSURE USING A ZIEGLER TYPE CATALYST

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)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES456321A1 (en) * 1976-02-25 1978-01-16 Charbonnages Ste Chimique Catalyst system for the polymerization of ethylene
FR2400040A2 (en) 1977-08-09 1979-03-09 Charbonnages Ste Chimique HIGH PRESSURE IONIC POLYMERIZATION OF ETHYLENE CONTROL PROCESS
FR2460306A1 (en) * 1979-07-05 1981-01-23 Charbonnages Ste Chimique PROCESS FOR PRODUCING ETHYLENE POLYMERS AND APPARATUS FOR IMPLEMENTING THE SAME
FR2495162B1 (en) * 1980-12-02 1985-09-27 Charbonnages Ste Chimique ETHYLENE POLYMERIZATION CATALYST COMPRISING AN AROMATIC COMPOUND OF SILICON
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
US4396532A (en) 1981-11-25 1983-08-02 Societe Chimique Des Charbonnages S.A. Activator comprising a dialkylaluminum monofluoride for 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
NL141533B (en) * 1968-10-30 1974-03-15 Ici Ltd METHOD FOR POLYMERIZING ETHENE.

Also Published As

Publication number Publication date
JPS5834483B2 (en) 1983-07-27
BR7307997D0 (en) 1974-07-25
CA1019899A (en) 1977-10-25
BE805756A (en) 1974-02-01
FR2202897B1 (en) 1976-05-21
GB1441115A (en) 1976-06-30
NL7314061A (en) 1974-04-16
DE2350739A1 (en) 1974-04-18
JPS4997087A (en) 1974-09-13
FR2202897A1 (en) 1974-05-10
DE2350739C2 (en) 1982-11-11

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