Azoacylacetamide dispersing agents and azo-pigment compositions
AssigneeAmerican Hoechst Corporation
InventorRichard Castenson
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Abstract
This invention is directed to new azoacylacetamide dispersing agents for azo pigments and azo pigment compositions made therefrom. The pigment compositions of this invention comprise a mixture of dispersing agents which are represented below by abbreviated Formula I and pigments which are represented by the abbreviated Formula II, wherein said dispersing agents are present in an amount of 1-25% and said pigments are present in an amount of 99 to 75%: ##STR1## where: A is an aromatic or heterocyclic amino group; B is an aromatic or heterocyclic bisdiazonium group; D is an aliphatic polyamino group containing at least three nitrogen atoms.
Claims28
An azoacylacetamide compound of the formula:
- ##STR9## wherein R is H or a substituent independently selected from the group consisting of --CH.sub.3, --OCH.sub.3, --OCH.sub.2 CH.sub.3, and --Cl;
- n is an integer from 1 to 5, X is independently selected from the group consisting of --H, --Cl, --OCH.sub.3, --OC.sub.2 H.sub.5 ;
- R' is a polyamino substituent having the formula ##STR10## wherein W and Y are a substituent independently selected from the group consisting of R", H, alkyl and aryl with the proviso that at least one of the substituents is R", and wherein R" is a long chain aliphatic substituent having 10 to 22 carbon atoms, m and p are integers from 0 to 3, a is an integer from 1-5, and Z is independently selected from the group consisting of H, alkyl and aryl.
Dependencies are inferred from the claim text.