| PATENT ASSIGNEE'S COUNTRY | Germany |
| UPDATE | 08.99 |
| PATENT ASSIGNEE | BASF AG |
| PATENT CLAIMS |
Process for improving the pigmentary properties of crude halogenated Cu phthalocyanine pigment having chlorine content of 4-50.3% comprising - Heating crude pigment with Cu phthalocyanine deriv. selected from Cu phthalocyanine-sulfonic acid etc in liquid medium comprising acid functional organic compd (convertable into water-soluble salt by treat with aq. base) |
| PATENT PHOTOCOPY | Available on request |
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