Production of easily dispersible, high tinctorial strength peryl

Details Production of easily dispersible, high tinctorial strength peryl Production of easily dispersible, high tinctorial strength peryl

1974-04-01

1976-08-24

Rizzo, Nicholas S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106288Q, C07D47106

Patent

active

039766497

ABSTRACT:
High tinctorial strength, easily dispersible perylene-3,4,9,10-tetracarboximides and N,N'-dialkylperylene-3,4,9,10-tetracarboximides are produced by introducing a finely ground crude pigment whose primary particle size is not more than 0.05 micron into a primary aliphatic or aromatic amine, into a heterocyclic base, into an aliphatic carboxamide, into a mixture thereof, or into from 75 to 84% by weight sulfuric acid and converting it into pigmentary form at a temperature of from ambient temperature to 160.degree.C. The products are easily dispersible pigments of high tinctorial strength.

REFERENCES:
patent: 3043843 (1962-07-01), Koch
patent: 3615800 (1971-10-01), Spietschka et al.
patent: 3752686 (1973-08-01), Kalz et al.
patent: 3842084 (1974-10-01), Graser

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