JPS5490386A - Continuous preparation of polyolefin having broad molecular weight distribution - Google Patents

Continuous preparation of polyolefin having broad molecular weight distribution

Info

Publication number
JPS5490386A
JPS5490386A JP15749477A JP15749477A JPS5490386A JP S5490386 A JPS5490386 A JP S5490386A JP 15749477 A JP15749477 A JP 15749477A JP 15749477 A JP15749477 A JP 15749477A JP S5490386 A JPS5490386 A JP S5490386A
Authority
JP
Japan
Prior art keywords
molecular weight
continuously
step reactor
polyolefin
weight distribution
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
JP15749477A
Other languages
Japanese (ja)
Other versions
JPS6039084B2 (en
Inventor
Nobuyuki Kuroda
Yasunosuke Miyazaki
Kazuo Matsuura
Kunimichi Kubo
Mitsuharu Miyoshi
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.)
Eneos Corp
Original Assignee
Nippon Oil 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 Nippon Oil Corp filed Critical Nippon Oil Corp
Priority to JP15749477A priority Critical patent/JPS6039084B2/en
Priority to GB20057/78A priority patent/GB1577512A/en
Priority to CA304,255A priority patent/CA1102049A/en
Priority to CA304,642A priority patent/CA1102050A/en
Priority to IT12654/78A priority patent/IT1103190B/en
Priority to AU37122/78A priority patent/AU520332B2/en
Priority to FR7818110A priority patent/FR2394557B1/en
Priority to DE19782826548 priority patent/DE2826548A1/en
Priority to BR7803876A priority patent/BR7803876A/en
Publication of JPS5490386A publication Critical patent/JPS5490386A/en
Publication of JPS6039084B2 publication Critical patent/JPS6039084B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To prepare continuously a polyolefin having a broad molecular weight distribution, by maintaining the first and the second step reactor under specific polymerization states and using an active Ziegler catalyst carried on a carrier.
CONSTITUTION: A high molecular weight copolymer dispersed in a solvent is first prepared by feeding an olefin monomer and comonomers continuously into the first step reactor wherein the upper part is free of the gas phase and filled with the liquid, and copolymerizing the monomers in the presence of a solvent, hydrogen and a highly active Ziegler catalyst carried on a solid carrier. The mixture is continuously transferred to the second step reactor of a vertical stirring vessel kept to a pressure lower than that of the first step reactor, by the pressure difference without separation of the mixture and forced transfer means. Low molecular weight polymer is continuously prepared in the presence of the olefin monomer and hydrogen, under the condition that the gas phase is present at the upper part of the stirring vessel, and taken out from the vessel.
COPYRIGHT: (C)1979,JPO&Japio
JP15749477A 1977-06-18 1977-12-28 Continuous production method for polyolefin with wide molecular weight distribution Expired JPS6039084B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP15749477A JPS6039084B2 (en) 1977-12-28 1977-12-28 Continuous production method for polyolefin with wide molecular weight distribution
GB20057/78A GB1577512A (en) 1977-06-18 1978-05-17 Olefin polymerization
CA304,255A CA1102049A (en) 1977-06-18 1978-05-29 Process for continuously preparing polyolefins
CA304,642A CA1102050A (en) 1977-06-18 1978-06-02 Process for continuously preparing polyolefins
IT12654/78A IT1103190B (en) 1977-06-18 1978-06-09 PROCESS FOR THE CONTINUOUS PREPARATION OF POLEFINE
AU37122/78A AU520332B2 (en) 1977-06-18 1978-06-14 Continuously preparing polyolefins
FR7818110A FR2394557B1 (en) 1977-06-18 1978-06-16 PROCESS FOR THE PREPARATION OF CONTINUOUS POLYOLEFINS
DE19782826548 DE2826548A1 (en) 1977-06-18 1978-06-16 PROCESS FOR THE CONTINUOUS MANUFACTURING OF POLYOLEFINS
BR7803876A BR7803876A (en) 1977-06-18 1978-06-16 CONTINUOUS POLYOLEFIN PREPARATION PROCESS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15749477A JPS6039084B2 (en) 1977-12-28 1977-12-28 Continuous production method for polyolefin with wide molecular weight distribution

Publications (2)

Publication Number Publication Date
JPS5490386A true JPS5490386A (en) 1979-07-18
JPS6039084B2 JPS6039084B2 (en) 1985-09-04

Family

ID=15650902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15749477A Expired JPS6039084B2 (en) 1977-06-18 1977-12-28 Continuous production method for polyolefin with wide molecular weight distribution

Country Status (1)

Country Link
JP (1) JPS6039084B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721409A (en) * 1980-07-16 1982-02-04 Showa Denko Kk Production of ethylene copolymer
JPS57126834A (en) * 1981-01-30 1982-08-06 Sumitomo Chem Co Ltd Ethylene-alpha-olefin copolymer resin composition
JPS588712A (en) * 1981-07-08 1983-01-18 Showa Denko Kk Production of ethylene copolymer
JPS588713A (en) * 1981-07-10 1983-01-18 Showa Denko Kk Production of ethylene copolymer
JPS5813605A (en) * 1981-07-20 1983-01-26 Showa Denko Kk Preparation of ethylenic copolymer
JP2016523288A (en) * 2013-06-25 2016-08-08 バーゼル・ポリオレフィン・ゲーエムベーハー Blow molding polyethylene composition having high stress crack resistance

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430634Y2 (en) * 1985-06-10 1992-07-23

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721409A (en) * 1980-07-16 1982-02-04 Showa Denko Kk Production of ethylene copolymer
JPH0317845B2 (en) * 1980-07-16 1991-03-11 Showa Denko Kk
JPS57126834A (en) * 1981-01-30 1982-08-06 Sumitomo Chem Co Ltd Ethylene-alpha-olefin copolymer resin composition
JPS588712A (en) * 1981-07-08 1983-01-18 Showa Denko Kk Production of ethylene copolymer
JPH0318644B2 (en) * 1981-07-08 1991-03-13 Showa Denko Kk
JPS588713A (en) * 1981-07-10 1983-01-18 Showa Denko Kk Production of ethylene copolymer
JPS5813605A (en) * 1981-07-20 1983-01-26 Showa Denko Kk Preparation of ethylenic copolymer
JPH0318645B2 (en) * 1981-07-20 1991-03-13 Showa Denko Kk
JP2016523288A (en) * 2013-06-25 2016-08-08 バーゼル・ポリオレフィン・ゲーエムベーハー Blow molding polyethylene composition having high stress crack resistance
US9725541B2 (en) 2013-06-25 2017-08-08 Basell Polyolefine Gmbh Polyethylene composition for blow molding having high stress cracking resistance

Also Published As

Publication number Publication date
JPS6039084B2 (en) 1985-09-04

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