Claims
- 1. A process for preparing a prepolymerized solid catalyst containing a prepolymerized olefin, said process comprising polymerizing an olefin onto an olefin polymerization catalyst in a heterogeneous system under irradiation with an elastic wave.
- 2. A process for heterogeneous polymerization of an olefin, comprising subjecting an olefin to slurry polymerization or gas phase polymerization in the presence of a prepolymerized solid catalyst, said prepolymerized solid catalyst having been prepared by prepolymerizing an olefin onto an olefin polymerization catalyst in a heterogeneous system under irradiation with an elastic wave and in which the olefin is prepolvmerized in an amount of not less than 0.1 g based on 1 mmol of a transition metal contained in the olefin polymerization catalyst.
- 3. A process for heterogeneous polymerization of an olefin, comprising polymerizing an olefin onto an olefin polymerization catalyst in a heterogeneous system under irradiation with an elastic wave.
Priority Claims (2)
Number |
Date |
Country |
Kind |
8-224982 |
Aug 1996 |
JPX |
|
9-151039 |
Jun 1997 |
JPX |
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CROSS-REFERENCE TO RELATED APPLICATIONS
This application is a divisional of application Ser. No. 08/917,605, filed Aug, 26,1997 now U.S. Pat. No. 5,939,345.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
5719095 |
Brekner et al. |
Feb 1998 |
|
Non-Patent Literature Citations (1)
Entry |
Abstract of Japanese Laid Open Application Publication No. 62-297302 (Dec. 24, 1987), Patent Abstracts of Japan, vol. 12, No. 191 (C-501) (1988). |
Divisions (1)
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Number |
Date |
Country |
Parent |
917605 |
Aug 1997 |
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