JPS5586805A - Preparation of ethylene copolymer - Google Patents

Preparation of ethylene copolymer

Info

Publication number
JPS5586805A
JPS5586805A JP15916778A JP15916778A JPS5586805A JP S5586805 A JPS5586805 A JP S5586805A JP 15916778 A JP15916778 A JP 15916778A JP 15916778 A JP15916778 A JP 15916778A JP S5586805 A JPS5586805 A JP S5586805A
Authority
JP
Japan
Prior art keywords
ethylene
olefin
catalyst component
titanium catalyst
ethylene copolymer
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
JP15916778A
Other languages
Japanese (ja)
Other versions
JPS6026408B2 (en
Inventor
Yoshinori Morita
Akinori Toyoda
Norio Kashiwa
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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries Ltd
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 Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Priority to JP15916778A priority Critical patent/JPS6026408B2/en
Publication of JPS5586805A publication Critical patent/JPS5586805A/en
Publication of JPS6026408B2 publication Critical patent/JPS6026408B2/en
Expired legal-status Critical Current

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  • 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 obtain a low-density ethylene copolymer, by copolymerizing preliminarily ethylene with an α-olefin using a catalyst comprising a titanium catalyst component with a specific specification supported by a magnesium compound and an aluminum compound, followed by polymerization.
CONSTITUTION: In the preparation of an ethylene copolymer with a density of 0.900W0.945g/cm2 by copolymerizing ethylene with a small ratio of an α-olefin having 3 or more C at a temperature not higher than 100°C by using a catalyst comprising A) a titanium catalyst component supported by a magnesium compound, consisting of A-1) a substance having a specific surface area not less than 40m2/g, an average particle diameter of 5W200μ, and a standard deviation of particle size distribution not more than 2.1 and (A-2) a substance having a specific surface area not less than 80m2/g and an organic acid ester and B) an organoaluminum compound, 0.01W50g of ethylene per g of the titanium catalyst component is copolymerized preliminarily with a 3≤C α-olefin and then polymerized to give the copolymer. The rate of the preliminary copolymerization is not more than one-fifth of that of the polymerization.
COPYRIGHT: (C)1980,JPO&Japio
JP15916778A 1978-12-26 1978-12-26 Method for producing ethylene copolymer Expired JPS6026408B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15916778A JPS6026408B2 (en) 1978-12-26 1978-12-26 Method for producing ethylene copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15916778A JPS6026408B2 (en) 1978-12-26 1978-12-26 Method for producing ethylene copolymer

Publications (2)

Publication Number Publication Date
JPS5586805A true JPS5586805A (en) 1980-07-01
JPS6026408B2 JPS6026408B2 (en) 1985-06-24

Family

ID=15687729

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15916778A Expired JPS6026408B2 (en) 1978-12-26 1978-12-26 Method for producing ethylene copolymer

Country Status (1)

Country Link
JP (1) JPS6026408B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56815A (en) * 1979-05-24 1981-01-07 Nippon Oil Co Ltd Preparation of polyolefin
JPS5898315A (en) * 1981-12-07 1983-06-11 Chisso Corp Improvement of powder fluidity of polyolefin copolymer
JPH0625349A (en) * 1992-03-27 1994-02-01 Elf Atochem Sa Catalyst for olefin polymerization and its preparation
WO2005095472A1 (en) * 2004-03-29 2005-10-13 Basell Poliolefine Italia S.R.L. Magnesium chloride-based adducts and catalyst components obtained therefrom
US8062989B2 (en) 2006-06-23 2011-11-22 Basell Poliolefine Italia S.R.L. Magnesium chloroakolate-based catalyst precursors
US10564933B2 (en) 2011-09-30 2020-02-18 Triad National Security, Llc Quantum random number generators

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56815A (en) * 1979-05-24 1981-01-07 Nippon Oil Co Ltd Preparation of polyolefin
JPS619964B2 (en) * 1979-05-24 1986-03-27 Nippon Oil Co Ltd
JPS5898315A (en) * 1981-12-07 1983-06-11 Chisso Corp Improvement of powder fluidity of polyolefin copolymer
JPH0354125B2 (en) * 1981-12-07 1991-08-19
JPH0625349A (en) * 1992-03-27 1994-02-01 Elf Atochem Sa Catalyst for olefin polymerization and its preparation
US5494871A (en) * 1992-03-27 1996-02-27 Elf Atochem S.A. Process for preparing a prepolymerized olefin polymerization catalyst
WO2005095472A1 (en) * 2004-03-29 2005-10-13 Basell Poliolefine Italia S.R.L. Magnesium chloride-based adducts and catalyst components obtained therefrom
US8062989B2 (en) 2006-06-23 2011-11-22 Basell Poliolefine Italia S.R.L. Magnesium chloroakolate-based catalyst precursors
US10564933B2 (en) 2011-09-30 2020-02-18 Triad National Security, Llc Quantum random number generators

Also Published As

Publication number Publication date
JPS6026408B2 (en) 1985-06-24

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