| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | Mitsui Chemicals (Tokyo) |
| PATENT CLAIMS | Prepolymerized solid catalyst which is prepd by pre-polymn an olefin onto an olefin polymn catalyst in a heterogeneous system under irradiation with an elastic wave & in which the olefin is prepolymerized in amount > than 0.1 g based on 1 mmol of transition metal contained in olefin polymn catalyst |
| PATENT PHOTOCOPY | Available on request |
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