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Pigment compositions
| Details |
Inventors: Jost, Max; Iqbal, Abul; Rochat, Alain C.;
Assignee: Ciba-Geigy Corporation (Ardsley, NY)
Primary Examiner: Springer; David B.
Assistant Examiner:
Attorney, Agent or Firm: Hall; Luther A. R.
Compositions comprising (a) a pyrrolopyrrole of formula I ##STR1## wherein A and B are identical or different alkyl, arlkyl, aryl or heterocyclic aromatic radicals, R.sub.1 and R.sub.2 are hydrogen atoms, unsubstituted or substituted alkyl radicals, and also alkenyl, alkynyl, aralkyl, cycloalkyl, carbamoyl, alkylcarbamoyl, arylcarbamoyl, alkoxycarbonyl, aryl, alkanoyl or aroyl groups, and X is an --O-- or --S-- atom, and (b) a pyrrolopyrrole of the above formula I that contains at least one group of formula --SO.sub.3 L, --CO.sub.2 L, --PO.sub.3 (L).sub.2, --N(R.sub.4)(R.sub.5), ##STR2## or --NHCOR wherein L is --H, a group of formula ##EQU1## or N.sup.+ H(R.sub.3)(R.sub.4)(R.sub.5), M is monovalent, divalent or trivalent metal cation, n is 1, 2 or 3, R.sub.3, R.sub.4 and R.sub.5 are each independently --H or alkyl, aralkyl, C.sub.5 -C.sub.6 cycloalkyl or aryl radicals, or R.sub.4 and R.sub.5, together with the nitrogen atom to which they are attached, form a 5-- or 6-membered heterocyclic radical, q is an integer from 0 to 4, r is an integer from 3 to 5 and R is aryl or C.sub.1 -C.sub.4 alkyl, are suitable for coloring high molecular organic material. |
|
DETAILED DESCRIPTION What is claimed is: 1.
A composition which is a mixture of pyrrolopyrrole pigments which comprises (a) 99.
9 to 75% by weight of a pyrrolopyrrole pigment of formula I' ##STR27## wherein A and B are identical or different phenyl groups or phenyl radicals which are substituted by water-insolubilizing substituents selected from the group consisting of halogen, C.
sub.
1 -C.
sub.
6 -alkyl, C.
sub.
1 -C.
sub.
4 -alkoxy, C.
sub.
1 -C.
sub.
6 -alkyl-mercapto, trifluoromethyl, cyano, dimethylamino, diethylamino, C.
sub.
2 -C.
sub.
6 -alkoxycarbonyl, acetylamino, carbamoyl or sulfamoyl, or A and B are 4-biphenylyl, naphthyl or pyridyl, and (b) 0.
1 to 25% by weight of a modified pyrrolopyrrole pigment of formula I' which modified pigment additionally contains at least one group of formula --SO.
sub.
3 L, --CO.
sub.
2 L, --PO.
sub.
3 (L).
sub.
2, --N(R.
sub.
4)(R.
sub.
5), ##STR28## wherein L is --H, a group of formula ##EQU5## or N.
sup.
+ H(R.
sub.
3)(R.
sub.
4)(R.
sub.
5), M is a monovalent, divalent or trivalent metal cation, n is 1, 2 or 3, R.
sub.
3, R.
sub.
4 and R.
sub.
5 are each independently --H or alkyl, benzyl, C.
sub.
5 -C.
sub.
6 cycloalkyl or phenyl radicals, or R.
sub.
4 and R.
sub.
5, together with the nitrogen atom to which they are attached, form a morpholine or piperidine radical, q is an integer from 0 to 4, and r is an integer from 3 to 5.
2.
A composition according to claim 1, wherein A and B are identical and are phenyl radicals.
3.
A composition according to claim 1, wherein L is --H or a group of formula ##EQU6## in which M is an alkali metal cation, an alkaline earth metal cation, or a transition metal cation selected from the group consisting of Mn.
sup.
2+, Zn.
sup.
2+, Cu.
sup.
2+, Ni.
sup.
2+, Cd.
sup.
2+, Co.
sup.
2+, Al.
sup.
3+ and Cr.
sup.
3+, and n is 1, 2 or 3.
4.
A composition according to claim 1, comprising (a) a pyrrolopyrrole of formula II ##STR29## wherein A.
sub.
1 and B.
sub.
1 are each independently of the other phenyl or phenyl radicals which are substituted by water-insolubilizing substituents selected from the group consisting of halogen, C
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Molecular Biology 
