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US 2018/0362767 A1Published application
Anthrapyridone Azo Dyes, Their Preparation And Use
AssigneeDFI Chem GmbH
InventorsDamien Moigno, Kurt Baettig
Life of this patent
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Abstract
Azo anthrapyridone dye of general formula (III) wherein A, R1, R2, B, M and n are as described in the specification, are excellent magenta dyes for dyeing and printing of paper, other cellulose containing materials and textiles materials and, in particular, for the preparation of recording fluids for ink jet printing and for writing utensils.
Claims16
An anthrapyridone azo dye of general formula (III):
- wherein
- A represents a unsubstituted or substituted CO-phenyl group, where the substituents are selected from the group consisting of Cl, Br, OCH3, SO3M or represents a CO-thiophene group, a hydrogen atom, COOCH3, COOCH2CH3, CN, or phenyl group;
- R1 represents a hydrogen atom or a unsubstituted or substituted alkyl group having from 1 to 8 carbon atoms where the substituents are selected from the group consisting of OH, SO3M, COOM;
- R2 represents a hydrogen atom or SO3M
- B represents a unsubstituted or substituted CO-aliphatic group having from 1 to 6 carbon atoms where the substituents are selected from the group consisting of Cl, Br, SO3M, COOM and phenyl;
- or a unsubstituted or substituted CO-aromatic ring group where the substituents are selected from the group consisting of alkyl, alkoxy, Cl, Br, OH, COOM, CN, NO2, SO3M and phenyl;
- or a CO-heterocyclic ring group;
- or a substituted or unsubstituted SO2−aliphatic group having from 1 to 6 carbon atoms;
- or SO2−aromatic ring group where the substituents are selected from the group consisting of alkyl, alkoxy, Cl, Br, CN, NO2, SO3M and phenyl;
- or SO2− heterocyclic ring group;
- or represents a moiety of formula C
- wherein L1 and L2 independently represents OH, Cl, alkoxy having from 1-6 carbon atoms, substituted thioalkyl having from 1-6 carbon atoms where the substituents are selected from the group consisting of OH, COOM and SO3M;
- or NR6R7 where R6R7 independently represents H, substituents having from 1-6 carbon atoms where the substituents are selected from the group consisting of OH, COOM and SO3M,
- or represents a moiety of formula D
- or represents a moiety of formula E,
- wherein L1 and L2 independently represents OH, Cl, alkoxy having from 1-6 carbon atoms, substituted thioalkyl having from 1-6 carbon atoms where the substituents are selected from the group consisting of OH, COOM and SO3M;
- or NR6R7 where R6R7 independently represents H, substituents having from 1-6 carbon atoms where the substituents are selected from the group consisting of OH, COOM and SO3M. and
- M represents hydrogen, a metal cation or an ammonium cation, optionally substituted by one or more alkyl groups or substituted alkyl groups or hydroxyalkoxyalkyl groups each having from 1 to 18 carbon atoms. and
- n is 0 or 1 and SO3M is in position 3 or 4
16 more elements
Dependencies are inferred from the claim text.