| PATENT ASSIGNEE'S COUNTRY | Japan |
| UPDATE | 06.99 |
| PATENT ASSIGNEE | Toyo Ink Mfg |
| PATENT CLAIMS |
Mfg process from phthalic anhydride, NH3, Cu & urea - Reacting phthalic anhydride with NH3 to form phthalimide - Adding part of urea to phthalimide & melting mixt under heat to form homogeneous slurry - Adding Cu & rest of urea to slurry & forming Cu phthalocya nine in presence of a Mo compd as catalyst |
| PATENT PHOTOCOPY | Available on request |
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