C - Chemistry – Metallurgy – 09 – B
Patent
C - Chemistry, Metallurgy
09
B
260/170.2, 8/26.
C09B 29/00 (2006.01) C09B 29/52 (2006.01)
Patent
CA 1047487
Abstract of the Disclosure Mono azo pigments of the formula Image wherein R1 and R2 denote H atoms, alkyl groups containing 1-4 C atoms, or aryl radicals, R3 denotes an alkyl radical which contains 1-4 C atoms and which can optionally contain halogen atoms, alkoxy groups containing 1-4 C atoms, or an aryl, aryloxy or arylmercapto group, as substituents, or denotes an aryl or heterocyclic radical, X denotes an O atom or an imino group, Y denotes an O or S atom or an imino group, and X1 and Y1 denote H or halogen atoms, alkyl or alkoxy groups containing 1-4 C atoms, or a nitro, cyano or trifluoromethyl group, but X1 and Y1 must not be H atoms if R3 represents an unsubstituted alkyl group, and wherein the acylamino group is in the m- or p-position to the azo group are useful for coloring high molecular weight organic compounds in yellow to red shades of good fastness properties.
235289
Hari Stefan
Mory Rudolf
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