C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
6/198
C09B 47/04 (2006.01) C09B 47/10 (2006.01) C09B 67/00 (2006.01) C09B 67/04 (2006.01) C09B 67/16 (2006.01)
Patent
CA 1158810
SOLVENT STABLE COPPER PHTHALOCYANINE BLUE PIGMENTS Abstract of the Disclosure A process for producing stable copper phthalocyanine blue pigment in the alpha form. Copper phthalocyanine blue crystals are ground to produce a powder. The powder is contacted with chlorine and mixed with sulfuric acid. The pigment-sulfuric acid mixture is then mixed with water
367858
Basf Wyandotte Corporation
Robic Robic & Associes/associates
LandOfFree
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