Diketopyrrolopyrrole pigments
AssigneeClariant GmbH
InventorsFelix W. Grimm, Hans Joachim Metz, Joachim Weber, Andreas Wacker
Life of this patent
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Abstract
Diketopyrrolopyrroles of the formula (I): wherein R1, R2, R3 and R4 independently of one another are a C1–C4 alkyl radical or a substituted or unsubstituted phenyl radical, wherein the phenyl radical can be substituted by 1, 2, 3 or 4 substituents from the group C1–C4 alkyl, C1–C4 alkoxy, CN, F, Cl, Br, NO2, CF3, S—C1–C4 alkyl, phenyl or (C1–C2)alkylenephenyl, with the proviso that at least one of the radicals, R1, R2, R3, or R4, is one of the stated substituted or unsubstituted phenyl radicals.
Claims12
A diketopyrrolopyrrole of the formula (I)
- wherein
- R1, R2, R3 and R4 independently of one another are a C1–C4 alkyl radical or a substituted or unsubstituted phenyl radical, wherein the substituted phenyl radical is substituted by 1, 2, 3 or 4 substituents selected from the group consisting of C1–C4 alkyl, C1–C4 alkoxy, CN, F, Cl, Br, NO2, CF3, S—C1–C4 alkyl, phenyl and (C1–C2)alkylenephenyl,
- with the proviso that at least one of the radicals, R1, R2, R3, or R4, is a substituted or unsubstituted phenyl radical.
A compound of the formula (IV)
- wherein R5 and R6 are an unsubstituted or substituted alkyl or aryl radical and R1 and R2 independently of one another are a C1–C4 alkyl radical or a substituted or substituted phenyl radical, wherein the unsubstituted phenyl radical is substituted by 1, 2, 3 or 4 substituents selected from the group consisting of C1–C4 alkyl, C1–C4 alkoxy, CN, F, Cl, Br, NO2, CF3, S—C1–C4 alkyl, phenyl and (C1–C2)alkylenephenyl, with the proviso that at least one of the radicals, R1 and R2 is a substituted or unsubstituted phenyl radical.
A compound of the formula (V)
- wherein R5 is an unsubstituted or substituted alkyl or aryl radical and R1 and R2 independently of one another are a C1–C4 alkyl radical or a substituted or substituted phenyl radical, wherein the unsubstituted phenyl radical is substituted by 1, 2, 3 or 4 substituents selected from the group consisting of C1–C4 alkyl, C1–C4 alkoxy, CN, F, Cl, Br, NO2, CF3, S—C1–C4 alkyl, phenyl and (C1–C2)alkylenephenyl, with the proviso that at least one of the radicals, R1 and R2 is a substituted or unsubstituted phenyl radical.
Dependencies are inferred from the claim text.