JPS5798510A - Production of polyethylene by multistage polymerization - Google Patents

Production of polyethylene by multistage polymerization

Info

Publication number
JPS5798510A
JPS5798510A JP17349680A JP17349680A JPS5798510A JP S5798510 A JPS5798510 A JP S5798510A JP 17349680 A JP17349680 A JP 17349680A JP 17349680 A JP17349680 A JP 17349680A JP S5798510 A JPS5798510 A JP S5798510A
Authority
JP
Japan
Prior art keywords
solid product
compound
ethylene
polymerize
hydrogen
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.)
Granted
Application number
JP17349680A
Other languages
Japanese (ja)
Other versions
JPS6352659B2 (en
Inventor
Masahito Harada
Atsushi Suzuki
Jun Masuda
Sadahiko Yamada
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.)
JNC Corp
Original Assignee
Chisso Corp
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 Chisso Corp filed Critical Chisso Corp
Priority to JP17349680A priority Critical patent/JPS5798510A/en
Publication of JPS5798510A publication Critical patent/JPS5798510A/en
Publication of JPS6352659B2 publication Critical patent/JPS6352659B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • 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

PURPOSE: To facilitate remarkably the control of the molecular weight and the amount of the product, by carrying out the titled polymerization in the presence of a combination of catalysts composed of a specific solid product, a solid product prepared from an electron-donating compound and a transition metal compound, and an organo aluminium compound.
CONSTITUTION: The first stage polymerization giving a high molecular side polymer is carried out in a saturated hydrocarbon solvent at 80W100°C, under 11W70kg/cm2 in the presence of a combination of catalysts composed of a solid product (1) obtained from the reaction of a halide of a trivalent metal with the hydroxide of a divalent metal, a final solid product (2) carrying an electron donating compound and a transition metal compound, and an organo aluminium compound (3) in a molar ratio of ethylene/hydrogen in a gas phase of 1/0.001W 0.5, to polymerize 10W70% ethylene fed, and the second stage polymerization giving a low molecular side polymer is carried out in the suspending state of the first polymer in a saturated hydrocarbon solvent at 50W120°C, under 11W 70kg/cm2 in a molar ratio, ethylene/hydrogen in a gas phase, of 1.0/3.0W7.0, to polymerize 90W30% ethylene fed.
COPYRIGHT: (C)1982,JPO&Japio
JP17349680A 1980-12-09 1980-12-09 Production of polyethylene by multistage polymerization Granted JPS5798510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17349680A JPS5798510A (en) 1980-12-09 1980-12-09 Production of polyethylene by multistage polymerization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17349680A JPS5798510A (en) 1980-12-09 1980-12-09 Production of polyethylene by multistage polymerization

Publications (2)

Publication Number Publication Date
JPS5798510A true JPS5798510A (en) 1982-06-18
JPS6352659B2 JPS6352659B2 (en) 1988-10-19

Family

ID=15961585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17349680A Granted JPS5798510A (en) 1980-12-09 1980-12-09 Production of polyethylene by multistage polymerization

Country Status (1)

Country Link
JP (1) JPS5798510A (en)

Also Published As

Publication number Publication date
JPS6352659B2 (en) 1988-10-19

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