Patent ID: 6413309
Filing Date: 2002-07-02
Classification: C09B

Abstract:
A pigment preparation comprisinga) from 40 to 99% by weight of at least one organic base pigment, b1) from 1 to 40% by weight of at least one pigment dispersant of the formula (I) â€ƒin which the two radicals Z are identical or different and Z has the definition Z1, Z2, Z3 or Z4, with the proviso that both radicals Z are not simultaneously Z4, â€ƒand in which Z1 is a radical of formula (Ia), â€”[Xâ€”Y]qâ€”[X1â€”Y1]râ€”[X2â€”NH]sHâ€ƒâ€ƒ(Ia) â€ƒin which X, X1 and X2 are identical or different and are a branched or unbranched C2-C6-alkylene radical or a C5-C7-cycloalkylene radical which optionally are substituted by 1 to 4 C1-C4-alkyl radicals, hydroxyl radicals, hydroxyalkyl radicals having 1 to 4 carbon atoms, by 1 or 2 further C5-C7-cycloalkyl radicals or by a combination thereof; Y and Y1 are identical or different and are an NH, â€”O or N(C1-C6-alkyl) group, or q is a number from 1 to 6; r and s independently of one another are a number from 0 to 6, r and s not simultaneously being zero; and in which Z2 is a radical of formula (Ib), â€”[Xâ€”O]q1â€”[X1â€”O]qHâ€ƒâ€ƒ(Ib) â€ƒin which q1 is a number from 0 to 6; and in which Z3 is a radical of formula (Ic), â€ƒin which R2 and R3 independently of one another are a hydrogen atom, a substituted or unsubstituted or partly fluorinated or perfluorinated alkyl group having 1 to 20 carbon atoms, or a substituted or unsubstituted or partly fluorinated or perfluorinated alkenyl group having 2 to 20 carbon atoms, wherein the substituents are hydroxyl, phenyl, cyano, chloro, bromo, C2-C4-acyl or C1-C4-alkoxy, or R2 and R3 together with the nitrogen atom, form a saturated, unsaturated or aromatic heterocyclic ring with or without a further nitrogen, oxygen or sulfur atom in the ring; and X is as defined above; and Z4 is hydrogen, hydroxyl, amino, phenyl or C1-C20-alkyl, the phenyl ring and the alkyl group optionally substituted by one or more substituents selected from the group consisting of Cl, Br, CN, OH, C6H5, carbamoyl, C2-C4-acyl and C1-C4-alkoxy and the phenyl ring also optionally substituted by NR2R3, where R2 and R3 are as defined above, or the alkyl group is perfluorinated or partly fluorinated; and b2) at least one pigment dispersant of the formula (II) â€ƒin which V is a bivalent radical â€”Oâ€”, NR4, or Nâ€”R5â€”Yâˆ’X+, and W is the bivalent radical Nâ€”R5â€”Yâˆ’X+, D is a chlorine or bromine atom and, if o>1, may be a combination thereof, and o is a number from 0 to 4; R4 is a hydrogen atom or a C1-C20-alkyl group or is a phenyl group which is optionally unsubstituted or substituted one or more times, by halo, C1-C4-alkyl, C1-C4-alkoxy or phenylazo, R5 is a C1-C18-alkylene group which optionally is interrupted one or more times within the Câ€”C-chain by a bridge member selected from the group consisting of â€”Oâ€”, â€”NR6, â€”Sâ€”, phenylene, â€”COâ€”, â€”SO2â€” and â€”CR7R8 and a combination thereof, in which R6, R7 and R8 independently of one another are each a hydrogen atom or a C1-C4-alkyl group which is unsubstituted or substituted by a heterocyclic radical, or is a phenylene group which is unsubstituted or substituted one or more times, by C1-C4-alkyl or C1-C4-alkoxy, Yâˆ’ is one of the anionic radicals â€”SO3âˆ’ or COOâˆ’, and X+ is H+ or the equivalent â€ƒof a metal cation Mm+ from main groups 1 to 5 or from transition groups 1 or 2 or 4 to 8 of the Periodic Table of the Chemical Elements, m being one of the numbers 1, 2 and 3, or defines an ammonium ion N+R9R10R11R12, in which the substituents R9, R10, R11 and R12 independently of one another are each a hydrogen atom, C1-C30-alkyl, C1-C30-alkenyl, C5-C30-cycloalkyl, unsubstituted or C1-C8-alkyl-substituted phenyl, (C1-C4)-alkyl-phenyl, or are a (poly)alkyleneoxy group of the formula â€”[CH(R80)â€”CH2â€”O]kâ€”H in which k is a number from 1 to 30 and R80 is hydrogen or C1-C4-alkyl; and in which alkyl, alkenyl, cycloalkyl, phenyl or alkylphenyl R9, R10, R11, R12 are optionally further substituted by amino, hydroxyl, carboxyl or a combination thereof; or in which the substituents R9 and R10, together with the quaternary nitrogen atom, form a five- to seven-membered saturated ring system optionally comprising further heteroatoms selected from the group consisting of O, S and N; or in which the substituents R9, R10, and R11, together with the quaternary nitrogen atom, form a five- to seven-membered aromatic ring system optionally comprising further heteroatoms selected from the group consisting of O, S, and N and onto which additional rings are optionally fused; with the exception of a pigment preparation comprising an organic base pigment, a pigment dispersant of the formula (IX) â€ƒand a pigment dispersant of formula (X) â€ƒthe proportions of the respective components being based on the total weight of the preparation (100% by weight).