Preparation of .beta.-copper phthalocyanine without milling

Details Preparation of .beta.-copper phthalocyanine without milling Preparation of .beta.-copper phthalocyanine without milling

1974-03-27

1976-03-16

Moatz, Harry I.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 4704

Patent

active

039445640

ABSTRACT:
Pigmentary-grade .beta.-copper phthalocyanine (or .beta.-CPC) is prepared without the need for a final milling step by high turbulence drowning of an H.sub.2 SO.sub.4 solution of crude CPC in water followed by admixture with

REFERENCES:
patent: 2359737 (1944-10-01), Lacey et al.
Smith et al., J. Oil Col. Chem. Assoc., Vol. 49, pp. 614-630 (1966).
Anderson et al., Official Gazz., Oil, Paint & Color Chemists Assoc., pp. 184-199 (1963).

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