Process for the preparation of a solvent-stable, red-shade...

Details Process for the preparation of a solvent-stable, red-shade... Process for the preparation of a solvent-stable, red-shade...

C - Chemistry, Metallurgy

09

B

260/197

C09B 47/04 (2006.01) C09B 47/06 (2006.01) C09B 67/22 (2006.01)

Patent

CA 1138860

Case 3-10990/MA 1689 Canada Process for the preparation of a solvent-stable, red-shade copper phthalocyanine pigment composition Abstract of the Disclosure A process for the preparation of a solvent-stable, red shade copper phthalocyanine pigment composition by reacting an organic compound of capable of forming the phthalocyanine ring system, benzophenone 3,3',4,4'-tetracarboxylic acid or a derivative thereof, a copper compound capable of pro- viding the copper atom of the copper phthalocyanine molecule, a reaction catalyst, and a nitrogen source, optionally in the presence of at least one phthalocyanine compound substituted by 1 to 4 groups of a sulphonate or sulphonic acid and/or sulphonamide which may be N-substituted.

296958

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