Black matrix for colour filters
AssigneeBASF SE
InventorsJan Sültemeyer, Gerardus De Keyzer
Life of this patent
Estimating the term…
Abstract
Actinically modifiable composition for producing a black matrix comprising, all based on the entire composition, 10-70% by weight of a colorant or a mixture of colorants; 90-30% by weight of actinically reactive binder material, although optionally from 0% to 30% by weight of the actinically reactive binder material can be non-reactive components; and 0-10% by weight of further, non-reactive constituents; characterized in that the colorant or 50-100% by weight, the colorant mixture comprises a colorant obtainable by reaction of a compound of formula (i) with a compound of formula (ii), in the presence of a catalyst, or a mixture of such colorants, wherein the black colorant is likely a product of formula (iii) or a tautomer or isomer thereof.
Claims8
Actinically modifiable composition for producing a black matrix comprising, all based on the entire composition,
- 10-70% by weight of a colorant or a mixture of colorants;
- 90-30% by weight of actinically reactive binder material consisting of components selected from the group consisting of binders, binder precursors, dispersants, photoinitiators and stabilizers, although optionally from 0% to 30% by weight of the actinically reactive binder material can be non-reactive components;
- and
- 0-10% by weight of further, non-reactive constituents;
- characterized in that
- the composition has an optical density 1.0, in the entire wavelength range 430-650 nm per 1 μm layer thickness;
- and
- the colorant or 50-100% by weight, the colorant mixture comprises a colorant obtainable by reaction of a compound of the formula
- with a compound of the formula
- in a molar ratio of 1:2, or by reaction of a compound of the formula
- with 2 to 5 compounds of the formula
- in a molar (i):(iii) overall ratio of 1:2, in the presence of a catalyst having a pK value≦4.5 in water at 25° C., or a mixture of such colorants, where
- R1 and R2 independently of one another are H or are C1-C24alkyl, C3-C24cycloalkyl, C2-C24alkenyl, C3-C24cycloalkenyl or C2-C24alkynyl, each unsubstituted or substituted by halogen or C1-C8alkoxy;
- are C7-C24aralkyl which is unsubstituted or substituted one or more times by halogen, nitro, cyano, C1-C8alkyl and/or C1-C8alkoxy;
- or are C6-C24aryl which is unsubstituted or substituted one or more times by halogen, nitro, cyano, C1-C8alkyl and/or C1-C8alkoxy;
- R3 is H, F, Cl, R8 or OR8;
- R4, R5 and R6 independently of one another are H, F, Br, Cl, COOH, COOR8, CONH2, CONHR8, CONR8R8, CN, COR8, SO3H, SO2NH2, SO2NHR8, SO2NR8R8, SO2R8, NO2, R8, OR8, SR8, NR8R8, NHCOR8 or
- or R3 and R4, R4 and R5 or R5 and R6 in pairs together form a C1-C6alkylenedioxy, C3-C6alkylene, C3-C6alkenylene or 1,4-butadienylene radical, each unsubstituted or substituted one or more times by F, OR8, NO2, oxo, thioxo or SO3H;
- R7 is H or is C1-C24alkyl, C3-C24cycloalkyl, C2-C24alkenyl, C3-C24cycloalkenyl, C2-C24alkynyl or C2-C12heterocycloalkyl, each unsubstituted or substituted one or more times by F, oxo or thioxo and uninterrupted or interrupted one or more times by O, S or NR8;
- or is C7-C24aralkyl, C1-C12heteroaryl-C1-C8alkyl, C6-C24aryl or C1-C12heteroaryl, each unsubstituted or substituted one or more times by oxo, thioxo, F, Br, Cl, COOH, COOR8, CONH2, CONHR8, CONR8R8, CN, COR8, SO3H, SO2NH2, SO2NHR8, SO2NR8R8, SO2R8, NO2, R8, OR8, SR8, NR8R8, NHCOR8 or
- each R8, independently of all other R8s, is C1-C24alkyl, C3-C24cycloalkyl, C2-C24alkenyl, C3-C24cycloalkenyl, C2-C24alkynyl or C2-C12heterocycloalkyl, each unsubstituted or substituted one or more times by F, oxo, thioxo, OR9, SR9 or NR9R9;
- or is C7-C24aralkyl, C1-C12heteroaryl-C1-C8alkyl, C6-C24aryl or C1-C12heteroaryl, each unsubstituted or substituted one or more times by oxo, F, Br, Cl, COOH, CONH2, CONHR9, CONR9R9, SO3H, SO2NH2, SO2NHR9, SO2NR9R9, CN, NO2, OR9, SR9, NR9R9, NHCOR9 or
- or two vicinal R8s together form —O—CO—O—, —O—CS—O—, —CO—N—CO—, —N—CO—N—, —N═S═N—, —N—C═C—, —O—C═C—, —S—C═C—, —O—C═N—, —S—C═N—, —N—N═N—, —N═C—C═C—, —C═N—C═C—, —N═C—C═N—, —C═N—N═C— or —C═N—C═N— or —C═C—C═C—, in which each —C═ and —N— independently of all other —C═ and —N— is substituted by H or R9;
- or two geminal or vicinal R8s together form a C3-C8alkylene or C3-C8alkenylene radical, each unsubstituted or substituted one or more times by F, oxo or thioxo, and in which 0, 1 or 2 non-vicinal methylene units may be replaced by O, S or NR9;
- each R9, independently of all other R9s, is C1-C8alkyl, C3-C6cycloalkyl or benzyl, each unsubstituted or substituted one or more times by oxo, thioxo, F and/or O—C1-C8alkyl;
- or is phenyl or C1-C5heteroaryl, each unsubstituted or substituted one or more times by F, Br, Cl, CO—C1-C8alkyl, COOH, CONH2, CONHC1-C8alkyl, CON(C1-C8alkyl)2, SO3H, SO2NH2, SO2NHC1-C8alkyl, SO2N(C1-C8alkyl)2, CN, NO2, C1-C8alkyl, OC1-C8alkyl, SC1-C8alkyl or N(C1-C8alkyl)2;
- or two vicinal R9s together form —O—CO—O—, —O—CS—O—, —CO—N—CO—, —N—CO—N—, —N═S═N—, —N—C═C—, —O—C═C—, —S—C═C—, —O—C═N—, —S—C═N—, —N—N═N—, —N═C—C═C—, —C═N—C═C—, —N═C—C═N—, —C═N—N═C— or —C═N—C═N— or —C═C—C═C—, in which each —C═ and —N— independently of all other —C═ and —N— is substituted by H, F, oxo, thioxo, C1-C8alkyl or OC1-C8alkyl;
- or two geminal or vicinal R9s together form a C3-C8alkylene or C3-C8alkenylene radical, each unsubstituted or substituted one or more times by oxo or thioxo, and in which 0, 1 or 2 non-vicinal methylene units may be replaced by O, S or N(C1-C8alkyl);
- and
- R10 is H, CH3, C2H5, OCH3, OC2H5, F, Cl, Br, NO2, CN, COOH or SO3H,
- R11 is H, NO2, CN, COOH or SO3H, and
- R12 is H, CH3, C2H5, OCH3, OC2H5, F, or Cl.
Dependencies are inferred from the claim text.