JPS54145780A - Polymerization of olefin - Google Patents
Polymerization of olefinInfo
- Publication number
- JPS54145780A JPS54145780A JP5380078A JP5380078A JPS54145780A JP S54145780 A JPS54145780 A JP S54145780A JP 5380078 A JP5380078 A JP 5380078A JP 5380078 A JP5380078 A JP 5380078A JP S54145780 A JPS54145780 A JP S54145780A
- Authority
- JP
- Japan
- Prior art keywords
- propylene
- polymer
- catalyst
- titanium trichloride
- polymerization
- 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
Abstract
PURPOSE: To improve transparency of a propylene polymer with increasing activity of the polymerization catalyst, by alternately feeding propylene and other olefins to a catalyst system to effect the prepolymerization thereof, and by further polymerizing propylene, etc. in the presence of the above catalyst-polymer system.
CONSTITUTION: Propylene and other olefins, e.g. ethylene, etc., are prepolymerized in the presence of a catalyst system comprising titanium trichloride and an organoaluminum compound, e.g. diethylaluminum monochloride, etc., by alternately feeding the monomers to attain a yield of 1 W 100g on the basis of 1g of titanium trichloride. Propylene or its mixture with the other olefin is polymerized in the presence of the above catalyst-polymer system to give a polyolefin. The titanium trichloride is pref. the one giving a polymerization rate of ≥ 2,000g polymer/g. TiCl3/hr.
EFFECT: The yield of the crystalline polymer is increased.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5380078A JPS5837323B2 (en) | 1978-05-08 | 1978-05-08 | Olefin polymerization method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5380078A JPS5837323B2 (en) | 1978-05-08 | 1978-05-08 | Olefin polymerization method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54145780A true JPS54145780A (en) | 1979-11-14 |
JPS5837323B2 JPS5837323B2 (en) | 1983-08-16 |
Family
ID=12952883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5380078A Expired JPS5837323B2 (en) | 1978-05-08 | 1978-05-08 | Olefin polymerization method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5837323B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0452116U (en) * | 1990-09-07 | 1992-05-01 |
-
1978
- 1978-05-08 JP JP5380078A patent/JPS5837323B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5837323B2 (en) | 1983-08-16 |
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