Trisazo pigments containing two barbituric acid coupling compone

Details Trisazo pigments containing two barbituric acid coupling compone Trisazo pigments containing two barbituric acid coupling compone

1976-07-19

1978-06-06

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260205, 260206, 260207, 2602071, 260208, 106288Q, C09B 3500

Patent

active

040936139

ABSTRACT:
Azo pigments of the formula ##STR1## in which R.sub.1 and R.sub.2 denote H atoms, alkyl groups with 1-6 C atoms or aryl radicals, Y denotes an O or S atom or an imino group, Z denotes an O atom or an imino group and Y.sub.1 -Y.sub.4 denote H or halogen atoms, alkyl or alkoxy groups containing 1-4 C atoms, or nitro, trifluoromethyl or alkoxycarbonyl groups containing 2-4 C atoms are valuable pigments coloring plastics, melts, spinning solutions, lacquers paints and printing inks in yellow to red shades of high tinctorial strength and excellent fastness properties.

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