Process for preparing fine pigment dispersions
AssigneeCiba Specialty Chemicals Corporation
InventorsWerner Sieber, Véronique Hall-Goulle
Life of this patent
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Abstract
Preparation of pigment dispersions by a1) subjecting a mixture A comprising a latent pigment and a polymer to thermal, chemical or photolytic treatment and b) then adding a solvent, or a2) subjecting a mixture B comprising a latent pigment, a polymer and a solvent to thermal, chemical or photolytic treatment, new pigment dispersions and new latent pigments, their use in the process according to the invention for preparing the fine pigment dispersions and the use of the dispersions according to the invention for pigmenting high molecular mass material, including color filters.
Claims2
A compound of the formula
- in which
- R69 is C1-C6alkoxy and
- R70 is CONHE, SO2NMeE or SO2NHE,
- and E in the abovementioned formulae is in each case hydrogen or B, with the proviso that in each formula E is B on at least one occasion, and B is a group of the formula
- where in the formulae II, III, IV or Va or Vb
- m is zero or 1,
- X is C2-C5alkenylene or C1-C6alkylene which is unsubstituted or substituted one or more times by C1-C6alkyl or R5 and R6, or
- R1 and R2 independently of one another are hydrogen, C1-C6alkyl, alkoxy, halogen, cyano, nitro, N(C1-C6alkyl)2, unsubstituted or halogen-, cyano-, nitro-, C1-C6alkyl- or C1-C6alkoxy-substituted phenyl, and
- Q is hydrogen, C1-C6alkyl, CN, CCl3, a group
- SO2CH3 or SCH3, and
- R3 and R4 independently of one another are hydrogen, C1-C4alkyl or a group
- or R3 and R4 together form a piperidinyl radical, and
- R5 and R6 independently of one another are hydrogen, C1-C24alkyl, O-interrupted, S-interrupted or C1-C6alkyl-disubstituted and N-interrupted C1-C24alkyl, C3-C24alkenyl, C3-C24alkynyl, C4-C32cycloalkyl, C4-C12cycloalkenyl, unsubstituted or C1-C6alkyl-, C1-C6alkoxy-, halogen-, cyano- or nitro-substituted phenyl or biphenyl,
- R7, R8 and R9 independently of one another are hydrogen, C1-C24alkyl or C3-C24alkenyl,
- R82 is hydrogen, C1-C6alkyl or a group of the formula
- R83 is C1-C6alkyl,
- R84 is hydrogen or C1-C6alkyl and
- R85 is hydrogen, C1-C6alkyl, unsubstituted or C1-C6alkyl-substituted phenyl, or
- B is a group of the formula
- in which G1 is p,q-C2-C12alkylene which is unsubstituted or substituted one or more times by C1-C12alkyl, C1-C12alkoxy, C1-C12alkylthio or C2-C24dialkylamino, p and q being different positional numbers,
- G2 is a heteroatom selected from the group consisting of N, O and S, and in which
- i, if G2 is O or S, is the number 0 and, if G2 is N, is the number 1, and
- R10 and R11 independently of one another are [-(p′,q′-C2-C12alkylene)-R12-]i1-C1-C12 alkyl or C1-C12alkyl which is unsubstituted or substituted one or more times by C1-C12alkoxy, C1-C12alkylthio, C2-C24dialkylamino, C6-C12aryloxy, C6-C12arylthio, C7-C24alkylarylamino or C12-C24diarylamino,
- in which
- ii is a number from 1 to 1000, p′ and q′ are different positional numbers,
- each R12 independently of the others is a heteroatom O, S or C1-C12alkyl-substituted N, and C2-C12alkylene in the repeating units [C2-C12alkylene-R12] can be identical or different, and
- R10 and R11 are saturated or mono- to decaunsaturated, are uninterrupted or interrupted at any desired points by from 1 to 10 groups selected from the group consisting of —(C═O)— and —C6H4—, and may carry no or from 1 to 10 further substituents such as halogen, cyano or nitro,
- with the proviso that, if —G1-is —(CH2)iv-, wherein iv is a number from 2 to 12, and G2 is S, R11 is not unsubstituted, saturated and uninterrupted C1-C4alkyl lacuna].
Dependencies are inferred from the claim text.