JPS5586805A - Preparation of ethylene copolymer - Google Patents
Preparation of ethylene copolymerInfo
- 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
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 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
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)
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 |
-
1978
- 1978-12-26 JP JP15916778A patent/JPS6026408B2/en not_active Expired
Cited By (9)
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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