Naphthol as-pigments
AssigneeClariant Plastics & Coatings Ltd
InventorsUlrike Rohr, Joachim Eichhorn
Life of this patent
Estimating the term…
Abstract
Naphthol AS-pigments of formula (I), wherein R1 represents methyl or C3-C8-alkyl; R2 represents hydrogen or C1-C4-alkyl; Y represents C1-C4-alkyl or C1-C4-alkoxy; and Z′ represents hydrogen, phenyl, naphthyl, or substituted phenyl or substituted naphthyl, wherein the number of substituents can be 1, 2, 3 or 4 and are selected from the group consisting of halogen, nitro, cyano, C1-C4-alkoxycarbonyl, carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, phenylcarbamoyl, sulfamoyl, phenylsulfannoyl, C1-C4-alkylsulfamoyl, di(C1-C4)-alkylsulfamoyl, C1-C4-acylamino, C1-C4-alkyl and C1-C4-alkoxy.
Claims18
A pigmented electrophotographic toner or developer comprising a high molecular weight organic material of natural or synthetic origin comprising a pigment of the formula (I)
- wherein
- R1 is methyl or C3-C8-alkyl;
- R2 is hydrogen or C1-C4-alkyl;
- Y is C1-C4-alkyl or C1-C4-alkoxy;
- and
- Z′ is hydrogen, naphthyl, or substituted phenyl or substituted naphthyl, where the substituents are 1, 2, 3 or 4 in number and are selected from the group consisting of halogen, nitro, cyano, C1-C4-alkoxycarbonyl, carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, phenylcarbamoyl, sulfamoyl, phenylsulfamoyl, C1-C4-alkylsulfamoyl, di(C1-C4)-alkylsulfamoyl, C1-C4-alkyl and C1-C4-alkoxy.
An inkjet ink comprising a high molecular weight organic material of natural or synthetic origin comprising a pigment of the formula (I)
- wherein
- R1 is methyl or C3-C8-alkyl;
- R2 is hydrogen or C1-C4-alkyl;
- Y is C1-C4-alkyl or C1-C4-alkoxy;
- and
- Z′ is hydrogen, naphthyl, or substituted phenyl or substituted naphthyl, where the substituents are 1, 2, 3 or 4 in number and are selected from the group consisting of halogen, nitro, cyano, C1-C4-alkoxycarbonyl, carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, phenylcarbamoyl, sulfamoyl, phenylsulfamoyl, C1-C4-alkylsulfamoyl, di(C1-C4)-alkylsulfamoyl, C1-C4-alkyl and C1-C4-alkoxy.
A pigmented color filter comprising a high molecular weight organic material of natural or synthetic origin comprising a pigment of the formula (I)
- wherein
- R1 is methyl or C3-C8-alkyl;
- R2 is hydrogen or C1-C4-alkyl;
- Y is C1-C4-alkyl or C1-C4-alkoxy;
- and
- Z′ is hydrogen, naphthyl, or substituted phenyl or substituted naphthyl, where the substituents are 1, 2, 3 or 4 in number and are selected from the group consisting of halogen, nitro, cyano, C1-C4-alkoxycarbonyl, carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, phenylcarbamoyl, sulfamoyl, phenylsulfamoyl, C1-C4-alkylsulfamoyl, di(C1-C4)-alkylsulfamoyl, C1-C4-alkyl and C1-C4-alkoxy.
Dependencies are inferred from the claim text.