| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 04.99 |
| PATENT ASSIGNEE | Ube Industries (Yamaguchi) |
| PATENT CLAIMS |
Mfg process - Reacting 4-F-3-CF3 aniline (1 part) with water (1-20 parts) in presence of SO4H2 to obtain 4-F-3-CF3 aniline sulfate (I) - Subjecting (I) to diazotization reaction to obtain 4-F-3CF3 benzenediazonium salt (II) - Hydrolyzing (II) in Cu sulfate aq soln |
| PATENT PHOTOCOPY | Available on request |
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