JPS5529517A - Polymerization of propylene - Google Patents
Polymerization of propyleneInfo
- Publication number
- JPS5529517A JPS5529517A JP10145078A JP10145078A JPS5529517A JP S5529517 A JPS5529517 A JP S5529517A JP 10145078 A JP10145078 A JP 10145078A JP 10145078 A JP10145078 A JP 10145078A JP S5529517 A JPS5529517 A JP S5529517A
- Authority
- JP
- Japan
- Prior art keywords
- polymerization
- catalyst
- polypropylene
- liquid propylene
- pref
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Abstract
PURPOSE: To obtain a highly stereoregular polypropylene by gas phase polymerization in high yield by the use of a catalyst in the preliminary polymerization of liquid propylene.
CONSTITUTION: First, a preliminary polymerization of liquid propylene is carried out in the presence of a catalyst consisting of a titanium halide, an organoaluminum compound, and a third component (e.g., an electron-donating compound), until approximately≥1,000 (pref.≥5,000) parts by wt, per 1 part by wt. of the titanium atom in the catalyst, of polypropylene are produced, followed by continuing main polymerization in a gas phase to obtain the objective polypropylene. Said prelimimary polymerization is recommended to be performed at-20W80°C (pref. 20W 40°C) for ≤2 hrs. in the presence of the catalyst in an amount of 0.001W0.2g (as titanium atom) per 1l of liquid propylene.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10145078A JPS5529517A (en) | 1978-08-22 | 1978-08-22 | Polymerization of propylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10145078A JPS5529517A (en) | 1978-08-22 | 1978-08-22 | Polymerization of propylene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5529517A true JPS5529517A (en) | 1980-03-01 |
Family
ID=14301019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10145078A Pending JPS5529517A (en) | 1978-08-22 | 1978-08-22 | Polymerization of propylene |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5529517A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170911A (en) * | 1981-04-16 | 1982-10-21 | Mitsui Toatsu Chem Inc | Continuous preparation of propylene-ethylene copolymer |
| WO1998055519A1 (en) * | 1997-06-05 | 1998-12-10 | Solvay Polyolefins Europe-Belgium (Societe Anonyme) | Continuous process for obtaining propylene polymers |
-
1978
- 1978-08-22 JP JP10145078A patent/JPS5529517A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170911A (en) * | 1981-04-16 | 1982-10-21 | Mitsui Toatsu Chem Inc | Continuous preparation of propylene-ethylene copolymer |
| JPH0253444B2 (en) * | 1981-04-16 | 1990-11-16 | Mitsui Toatsu Chemicals | |
| WO1998055519A1 (en) * | 1997-06-05 | 1998-12-10 | Solvay Polyolefins Europe-Belgium (Societe Anonyme) | Continuous process for obtaining propylene polymers |
| US6303709B1 (en) | 1997-06-05 | 2001-10-16 | Solvay Polyolefins Europe-Belgium (Societe Anonyme) | Continuous process for obtaining propylene polymers |
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