JPS57209904A - Production of polypropylene - Google Patents
Production of polypropyleneInfo
- Publication number
- JPS57209904A JPS57209904A JP9468181A JP9468181A JPS57209904A JP S57209904 A JPS57209904 A JP S57209904A JP 9468181 A JP9468181 A JP 9468181A JP 9468181 A JP9468181 A JP 9468181A JP S57209904 A JPS57209904 A JP S57209904A
- Authority
- JP
- Japan
- Prior art keywords
- titanium trichloride
- trichloride composition
- polypropylene
- propylene
- catalyst
- 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 polypropylene having a low oligomer content and an improved color, by polymerizing propylene in a vapor phase in the presence of a catalyst comprising a system prepared by pretreating a titanium trichloride composition, an organoaluminum compound and an electron-donating compound with propylene.
CONSTITUTION: In the production of polypropylene by a vapor-phase polymerization in the presence of a catalyst system contaning a titanium trichloride composition and an organoaluminum compound; said catalyst system comprises a system prepared by forming a propylene polymer by prereacting, prior to the polymerization, a catalyst consisting of a titanium trichloride composition, 0.7W20mmol, per 100g formed polypropylene, of an organoaluminum and an electron-donating compound with at least 0.01g, per g titanium trichloride composition, of propylene at a temperature ≤60°C. It is necessary that the titanium trichloride composition used has an average particle diameter of 10W100μ, pref., about 30W80μ.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9468181A JPS57209904A (en) | 1981-06-19 | 1981-06-19 | Production of polypropylene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9468181A JPS57209904A (en) | 1981-06-19 | 1981-06-19 | Production of polypropylene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57209904A true JPS57209904A (en) | 1982-12-23 |
JPH0153284B2 JPH0153284B2 (en) | 1989-11-13 |
Family
ID=14116948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9468181A Granted JPS57209904A (en) | 1981-06-19 | 1981-06-19 | Production of polypropylene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57209904A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108413719A (en) * | 2018-03-26 | 2018-08-17 | 天华化工机械及自动化研究设计院有限公司 | A method of volatile matter in polypropylene powder is removed using vacuum blade dryer |
-
1981
- 1981-06-19 JP JP9468181A patent/JPS57209904A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108413719A (en) * | 2018-03-26 | 2018-08-17 | 天华化工机械及自动化研究设计院有限公司 | A method of volatile matter in polypropylene powder is removed using vacuum blade dryer |
Also Published As
Publication number | Publication date |
---|---|
JPH0153284B2 (en) | 1989-11-13 |
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