Monoazo pigments containing barbituric acid or thio- or imino-de

Details Monoazo pigments containing barbituric acid or thio- or imino-de Monoazo pigments containing barbituric acid or thio- or imino-de

1975-11-25

1977-06-21

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106 23, 106288Q, 106308Q, 260 37R, 260 37N, 260 37NP, 260 39P, 260 40R, 260 4221, 260208, 260140, 2602564C, 2602564N, 260257, 260260, 260558A, C09B 2936, C09D 1100, D06P 108, D06P 300

Patent

active

040310736

ABSTRACT:
Monoazo pigments of the formula ##STR1## wherein R.sub.1 denotes a H atom, an alkyl group containing 1-4 C atoms or an aryl radical, R.sub.2 denotes a H atom, an alkyl group containing 1-4 C atoms, or an aralkyl or aryl radical, or wherein the radicals R.sub.1 and R.sub.2, conjointly with the N atom, form a heterocyclic 5-membered or 6-membered ring, R.sub.3 denotes an H atom or halogen atom or an alkyl group containing 1-4 C atoms, R.sub.4 and R.sub.5 denote H atoms, alkyl groups containing 1-4 C atoms or phenyl groups optionally substituted by halogen atoms and alkyl and alkoxy groups containing 1-4 C atoms, X denotes an O atom or an imino group, Y denotes an O atom or S atom or an imino group, and Z denotes a halogen atom, an alkyl or alkoxy group containing 1-4 C atoms, or an aryloxy group, and wherein the carbonamide group is located in the m- or p-position to the azo group are prepared. The compounds are useful for coloring high molecular organic materials such as aminoplast, alkyl resins, polystyrene and polyvinyl chloride. The pigments show very good fastness to light and migration.

REFERENCES:
patent: 2103269 (1937-12-01), McNally et al.
patent: 2130358 (1938-09-01), McNally et al.
patent: 2140538 (1938-12-01), McNally et al.
patent: 2140539 (1938-12-01), McNally et al.
patent: 2746951 (1956-05-01), Taube

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