| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | Bayer AG (Leverkusen) |
| PATENT CLAIMS |
- Reacting oxadiazolinone with hydrazine hydrate - Adding water & solvent to reaction prodt - Adjusting pH 5 - 8 - Recovering ppcc |
| PATENT PHOTOCOPY | Available on request |
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