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US 7,105,646 B2Granted
Mono- and bis-hydrazone pigments
AssigneeSun Chemical Corporation
InventorsTerence Chamberlain, Norman W. Smith, Donald T. DeRussy
Life of this patent
Estimating the term…
Abstract
Mono- and Bis-Azo/Hydrazone Pyrrole Pigments and Methods for preparing same.
Claims9
A bis-azo/hydrazone pigment of the formula (II):
- wherein:
- A is a substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl radical;
- R′ is hydrogen, alkyl, aralkyl, aryl or heteroaryl;
- Y is hydrogen, alkyl, alkoxy, amine, nitro, carboxylic acid, or a substituted or unsubstituted fused ring;
- B is a divalent aliphatic, carbocyclic or heterocyclic radical, a divalent aryl or heteroaryl radical;
- and
- X is a divalent O or NH radical.
4 more elements
A process for preparing a bis-azo/hydrazone pigment of the formula (II):
- wherein:
- A is a substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl radical;
- R′ is hydrogen, alkyl, aralkyl, aryl or heteroaryl;
- Y is hydrogen, alkyl, alkoxy, amine, nitro, carboxylic acid, or a substituted or unsubstituted fused ring;
- B is a divalent aliphatic, carbocyclic or heterocyclic radical, a divalent aryl radical or a divalent heteroaryl radical;
- and
- X is a divalent O or NH radical;
- comprising reacting a diamine compound of the formula H2N—B—NH2, where B is a divalent aliphatic, carbocyclic or heterocyclic radical, a divalent aryl radical or a divalent heteroaryl radical, with a compound of the formula (VIII):
- wherein:
- A is a substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl radical;
- R′ is hydrogen, alkyl, aralkyl, aryl or heteroaryl;
- R is straight or branched chain C1–C18 alkyl, C7–C18 aralkyl or aryl;
- and
- Y is hydrogen, alkyl, alkoxy, amine, nitro, carboxylic acid, or a substituted or unsubstituted fused ring.
11 more elements
A process for preparing a bis-azo/hydrazone pigment of the formula (II)
- wherein:
- A is a substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl radical;
- R′ is hydrogen, alkyl, aralkyl, aryl or heteroaryl;
- Y is hydrogen, alkyl, alkoxy, amine, nitro, carboxylic acid, or a substituted or unsubstituted fused ring;
- B is a divalent aliphatic, carbocyclic or heterocyclic radical, a divalent aryl radical or a divalent heteroaryl radical;
- and
- X is a divalent O or NH radical;
- comprising reacting a diol compound of the formula HO—B—OH, where B is a divalent aliphatic, carbocyclic or heterocyclic radical, a divalent aryl radical or a divalent heteroaryl radical, with a compound of the formula (VIII):
- wherein:
- A is a substituted or unsubstituted aryl or substituted or unsubstituted heteroaryl radical;
- R′ is hydrogen, alkyl, aralkyl, aryl or heteroaryl;
- R is straight or branched chain C1–C18 alkyl, C7–C18 aralkyl or aryl;
- and
- Y is hydrogen, alkyl, alkoxy, amine, nitro, carboxylic acid, or a substituted or unsubstituted fused ring.
11 more elements
Dependencies are inferred from the claim text.