| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | Mitsubishi Chemical (Tokyo-To) |
| PATENT CLAIMS |
Prepn by contacting comp - Transition metal compd having conjugated five-membered ring ligand, the transition metal being Groups IV-VI (A) - H2MeAl (B) - Non-aq finely divided particle compn (C) comprising (i) Boric acid (0.1-99.9%) & (ii) Finely divided material (99.9-0.1 different from boric acid, wherein (C) has been prepd by contact. soln of boric acid with said other fine material; fo llowed by heating so that water is evaporateve removed |
| PATENT PHOTOCOPY | Available on request |
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