DE2409754A1 - Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the melt - Google Patents
Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the meltInfo
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- DE2409754A1 DE2409754A1 DE2409754A DE2409754A DE2409754A1 DE 2409754 A1 DE2409754 A1 DE 2409754A1 DE 2409754 A DE2409754 A DE 2409754A DE 2409754 A DE2409754 A DE 2409754A DE 2409754 A1 DE2409754 A1 DE 2409754A1
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
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- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0003—Monoazo dyes prepared by diazotising and coupling from diazotized anilines
- C09B29/0011—Monoazo dyes prepared by diazotising and coupling from diazotized anilines from diazotized anilines directly substituted by a heterocyclic ring (not condensed)
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- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0018—Monoazo dyes prepared by diazotising and coupling from diazotized aminopolycyclic rings
- C09B29/0022—Monoazo dyes prepared by diazotising and coupling from diazotized aminopolycyclic rings from diazotized aminoanthracene
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- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0059—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing only sulfur as heteroatom
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
- C09B29/0077—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms containing a five-membered heterocyclic ring with one nitrogen and one sulfur as heteroatoms
- C09B29/0081—Isothiazoles or condensed isothiazoles
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- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
- C09B29/0077—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms containing a five-membered heterocyclic ring with one nitrogen and one sulfur as heteroatoms
- C09B29/0085—Thiazoles or condensed thiazoles
- C09B29/0088—Benzothiazoles
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
- C09B29/0092—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms containing a five-membered heterocyclic ring with two nitrogen and one sulfur as heteroatoms
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
- C09B29/3617—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom
- C09B29/3621—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom from a pyridine ring
- C09B29/3639—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a six-membered heterocyclic with only one nitrogen as heteroatom from a pyridine ring from a pyridine ring containing one or more amino groups
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B31/00—Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling
- C09B31/02—Disazo dyes
- C09B31/12—Disazo dyes from other coupling components "C"
- C09B31/14—Heterocyclic components
- C09B31/153—Heterocyclic components containing a six-membered ring with one nitrogen atom as the only ring hetero-atom
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Abstract
Description
Thermoplastfarbstoffe Die Erfindung betrifft die Verwendung von Farbstoffen der Formel 1 in der D den Rest einer Diazokomponente, R Wasserstoff, Alkyl, Methylphenyl oder Phenyl, X Wasserstoff, Carbamoyl oder Cyan und die Reste A unabhängig voneinander Wasserstoff, gegebenenfalls substituiertes Alkyl, Cycloalkyl, Aralkyl, Phenyl oder Acyl bedeuten, zum Färben von Thermoplasten.Thermoplastic dyes The invention relates to the use of dyes of the formula 1 in which D is the radical of a diazo component, R is hydrogen, alkyl, methylphenyl or phenyl, X is hydrogen, carbamoyl or cyano and the radicals A are independently hydrogen, optionally substituted alkyl, cycloalkyl, aralkyl, phenyl or acyl, for dyeing thermoplastics.
Die Reste-D leiten sich insbesondere von Aminen der Benzol, Benzthiazol-, Benzisothiazol-, Thiazol-, Thiadiazol-, Thiophen-, Azobenzol- oder Anthrachinonreihe ab.The radicals-D are derived in particular from amines of benzene, benzothiazole, Benzisothiazole, thiazole, thiadiazole, thiophene, azobenzene or anthraquinone series away.
Als Substituenten für die Reste D der Diazokomponenten sind beispielsweise zu nennen: In der Benzolreihe: Chlor, Brom, Vitro, Cyan, Trifluormethyl, Methyl sulfonyl, Äthylsulfonyl, Phenylsulfonyl, Carbomethoxy, Carbobutoxy, Carbo-B-methoxyäthoxy, Carbo-B-hydroxyäthoxy, gegebenenfalls N-mono-oder N-disubstituiertes Carbon- oder Sulfonamid, Methyl, Äthyl, Butyl, Octyl, Hexyl, Methoxy oder Äthoxy.Substituents for the radicals D of the diazo components are, for example to be mentioned: In the benzene series: chlorine, bromine, vitro, cyano, trifluoromethyl, methyl sulfonyl, ethylsulfonyl, phenylsulfonyl, carbomethoxy, carbobutoxy, carbo-B-methoxyethoxy, Carbo-B-hydroxyethoxy, optionally N-mono- or N-disubstituted carbon- or Sulfonamide, methyl, ethyl, butyl, octyl, hexyl, methoxy or ethoxy.
N-Substituenten der Carbon- oder Sulfonamide sind dabei z. B. Methyl, Äthyl, Propyl, Butyl, B-Hydroxyäthyl, y-Hydroxypropyl, ß-Methoxyäthyl, y-Methoxypropyl oder y-Äthoxypropyl sowie das Pyrrolidid, Piperidid oder Morpholid.N-substituents of the carbon or sulfonamides are z. B. methyl, Ethyl, propyl, butyl, B-hydroxyethyl, γ-hydroxypropyl, ß-methoxyethyl, γ-methoxypropyl or γ-ethoxypropyl and the pyrrolidide, piperidide or morpholide.
In der Azobenzolreihe: Chlor, Brom, Nitro, Cyan, Methyl, Äthyl, Methoxy oder Äthoxy.In the azobenzene series: chlorine, bromine, nitro, cyano, methyl, ethyl, methoxy or ethoxy.
In der heterocyclischen Reihe: Chlor, Brom, Nitro, Cyan, Methyl, Äthyl, Phenyl, Methoxy, Äthoxy, Methylmeroapto, ß-Carbomethoxyäthylmercapto, ß-Carboäthoxyäthylmercapto, Carbomethoxy, Carboäthoxy, Acetyl, Nethylsulfonyl oder Äthylsulfonyl.In the heterocyclic series: chlorine, bromine, nitro, cyano, methyl, ethyl, Phenyl, methoxy, ethoxy, methyl meroapto, ß-carbomethoxyethyl mercapto, ß-carboethoxyethyl mercapto, Carbomethoxy, Carboethoxy, Acetyl, Nethylsulfonyl or Ethylsulfonyl.
Bevorzugt sind Diazokomponenten mit mindestens einem Substituenten wie Methylsulfonyl, Phenylsulfonyl, Äthylsulfonyl, Carbalkoxy, gegebenenfalls N-substituiertes Carbamoyl und insbesondere Nitro oder Cyan.Diazo components with at least one substituent are preferred such as methylsulfonyl, phenylsulfonyl, ethylsulfonyl, carbalkoxy, optionally N-substituted Carbamoyl and especially nitro or cyano.
Der Rest D leitet sich im einzelnen z. B. von folgenden Aminen ab: o-, m- oder p-Nitroanilin, o-, m- oder p-Cyananilin, 2,4-Dicyananilin, 2,4,6-Tribromanilin, 2-Chlor-4-nitroanilin, 2-Brom-4-nitroanilin, 2-Cyan-4-nitroanilin, 2-Methylsulfonyl-4-nitroanilin, 2-Methyl-4-nitroanilin, 2-Methoxy-4-nitroanilin, 4-Chlor-2-nitroanilin, 4-Methyl-2-nitroanilin, 2-Hexyl-4-nitroanilin, 4-Methoxy-2-nitroanilin, 1-Amino-2-trifluormethyl-4-chlorbenzol, 2-Chlor-5-aminobenzonitril, 2-Amino-5-chlor-benzonitril, 1-Amino-2-nitrobenzol-4-sulfonsäure-n-butylamid oder-ß-methoxyäthylamid, 2,4-Dinitroanilin, 2,4-Dinitro-6-chloranilin, 2,4-Dinitro-6-bromanilin, 2,4-Dinitro-6-cyananilin, 1-Amino-2,4-dinitrobenzol-6-methylsulfon, 2,6-Dichlor-4-nitroanilin, 2,6-Dibrom-4-nitroanilin, 2-Chlor-6-brom-4-nitroanilin, 2,6-Dicyan-4-nitroanilin, 2-Cyan-4-nitro-6-chloranilin, 2-Cyan-4-nitro-6-bromanilin, 1 -Aminobenzol-4-methylsulfon, 1-Amino-2,6-dibrombenzol-4-methylsulfon, 1-Amino-2, 6-dichlorbenzol-4-methylsulfon, 1-Amino-2, 4-dinitrobenzol-6-carbonsäuremethylester oder -ß-methoxyäthylester, 3,5-Dichloranthranilsäurepropylester, 3,5-Dibromanthranilsäure-ß-methoxyäthylester, N-Acetyl-p-phenylendiamin, 4-Aminoacetophenon, 4- oder 2-Aminobenz 0-phenon, 2- und 4-Aminodiphenylsulfon, 5-Nitroanthranilsäuremethylester, -isobutylester, -methyldiglykolester, -ß-methoxyäthylester, -ß-butoxyäthylester, -ß-acetoxyäthylester, 3- oder 4-Aminophthalsäure-, 3-Amino-6-nitrophthalsäure-ß-hydroxyäthylamid, Methylsulfonsäure-2'-, -3'- oder -4'-aminophenylester, Äthylsulfonsäure-2'-, -3'- oder-4'-aminophenylester, Butylbulfonsäure-2' -, -3'- oder -4'-aminophenylester, Benzolsulfonsäure-2'-, -3'- oder -4'-aminophenylester, 2-Aminoanthrachinon, 1 -Amino-4-chloranthrachinon, 2-Aminobenzthiazol, 2-Amino-6-carbonsäuremethylesterbenzthiazol, 2-Amino-6-methylsulfonylbenzthiazol, 2-Amino-6-cyanbenzthiazol, 2-Amino-6-nitrobenzthiazol, 5,6- oder 6,7-Dichlor-2-aminobenzthiazol, 4-Amino-5-brom-7-nitro-1,2-benzisothiazol, 3-Amino-5-nitro-2, 1-benzisothiazol, 5-Amino-5-nitro-7-brom-2, 1-benzisothiazol, 2-Aminothiazol, 2-Amino-5-nitrothiazol, 2-Amino-4-methylthiazol 5-carbonsäureäthylester, 2-Amino-4-methyl-5-acetylthiazol, 2-Amino-3-cyan-4-methylthiphen-5-carbonsäureester, 2-Phenyl-5-amino-1,3,4-thiadiazol, 3-Methylmercapto-5-amino-1,2,4-thiadiazol, 3-ß-Carbomethoxyäthylmercapto-5-amino-1,2,4-thiadiazol, 2,4-Dicyan-3,5-dimethylanilin. The remainder D is derived in detail z. B. from the following amines: o-, m- or p-nitroaniline, o-, m- or p-cyananiline, 2,4-dicyananiline, 2,4,6-tribromaniline, 2-chloro-4-nitroaniline, 2-bromo-4-nitroaniline, 2-cyano-4-nitroaniline, 2-methylsulfonyl-4-nitroaniline, 2-methyl-4-nitroaniline, 2-methoxy-4-nitroaniline, 4-chloro-2-nitroaniline, 4-methyl-2-nitroaniline, 2-hexyl-4-nitroaniline, 4-methoxy-2-nitroaniline, 1-amino-2-trifluoromethyl-4-chlorobenzene, 2-chloro-5-aminobenzonitrile, 2-amino-5-chlorobenzonitrile, 1-amino-2-nitrobenzene-4-sulfonic acid-n-butylamide or-ß-methoxyethylamide, 2,4-dinitroaniline, 2,4-dinitro-6-chloroaniline, 2,4-dinitro-6-bromaniline, 2,4-dinitro-6-cyananiline, 1-amino-2,4-dinitrobenzene-6-methylsulfone, 2,6-dichloro-4-nitroaniline, 2,6-dibromo-4-nitroaniline, 2-chloro-6-bromo-4-nitroaniline, 2,6-dicyano-4-nitroaniline, 2-cyano-4-nitro-6-chloroaniline, 2-cyano-4-nitro-6-bromaniline, 1-aminobenzene-4-methylsulfone, 1-amino-2,6-dibromobenzene-4-methylsulfone, 1-amino-2, 6-dichlorobenzene-4-methylsulfone, 1-Amino-2,4-dinitrobenzene-6-carboxylic acid methyl ester or -ß-methoxyethyl ester, 3,5-dichloroanthranilic acid propyl ester, 3,5-dibromanthranilic acid-ß-methoxyethyl ester, N-acetyl-p-phenylenediamine, 4-aminoacetophenone, 4- or 2-aminobenz 0-phenone, 2- and 4-aminodiphenylsulfone, 5-nitroanthranilic acid methyl ester, -isobutyl ester, -methyldiglycol ester, -ß-methoxyethyl ester, -ß-butoxyethyl ester, -ß-acetoxyethyl ester, 3- or 4-aminophthalic acid, 3-amino-6-nitrophthalic acid-ß-hydroxyethylamide, Methylsulfonic acid 2'-, -3'- or -4'-aminophenyl ester, ethylsulfonic acid 2'-, -3'- or 4'-aminophenyl ester, butyl sulfonic acid 2 ', -3'- or -4'-aminophenyl ester, Benzenesulfonic acid 2'-, -3'- or -4'-aminophenyl ester, 2-aminoanthraquinone, 1 -Amino-4-chloroanthraquinone, 2-aminobenzothiazole, 2-amino-6-carboxylic acid methyl ester benzothiazole, 2-amino-6-methylsulfonylbenzthiazole, 2-amino-6-cyanobenzothiazole, 2-amino-6-nitrobenzthiazole, 5,6- or 6,7-dichloro-2-aminobenzothiazole, 4-amino-5-bromo-7-nitro-1,2-benzisothiazole, 3-Amino-5-nitro-2, 1-benzisothiazole, 5-amino-5-nitro-7-bromo-2, 1-benzisothiazole, 2-aminothiazole, 2-amino-5-nitrothiazole, 2-amino-4-methylthiazole, 5-carboxylic acid ethyl ester, 2-amino-4-methyl-5-acetylthiazole, 2-amino-3-cyano-4-methylthiphen-5-carboxylic acid ester, 2-phenyl-5-amino-1,3,4-thiadiazole, 3-methylmercapto-5-amino-1,2,4-thiadiazole, 3-ß-carbomethoxyethylmercapto-5-amino-1,2,4-thiadiazole, 2,4-dicyano-3,5-dimethylaniline.
Geeignete Diazokomponentsn der Aminoazobenzolreihe sind beispielsweise: 4-Aminoazobenzol, 2',3-Dimethyl-4-aminoazobenzol, 3',2-Dimethyl-4-aminoazobenzol, 2,5-Dimethyl-4-aminoazobenzol, 2-Methyl-5-methoxy-4-aminobenzol, 2-Methyl-4',5-dimethoxy-4-aminoazobenzol, 4'-Ohlor-2-methyl-5-methoxy-4-aminoazobenzol, 4'-Nitro-2-methyl-5-methoxy-4-aminoazobenzol, 4'-Chlor-2-methyl-4-aminoazobenzol, 2,5-Dimethoxy-4-aminoazobenzol, 4'-Chlor-2,5-dimethoxy-4-aminoazobenzol, 4'-Nitro-2,5-dimethoxy-4-aminobenzol, 4'-Chlor-2,5-dimethyl-4-aminobenzol, 4'-Methoxy-2,5-dimethyl-4-aminoazobenzol, 4'-Nitro-4-aminoazobenzol, 3,5-Dibrom-4-aminoazobenzol, 2,3'-Dichlor-4-aminoazobenzol, 3-Nethoxy-4-aminoazobenzol, 4'-Hydroxy-2'-methyl-4-aminoazobenzol.Suitable diazo components of the aminoazobenzene series are, for example: 4-aminoazobenzene, 2 ', 3-dimethyl-4-aminoazobenzene, 3', 2-dimethyl-4-aminoazobenzene, 2,5-dimethyl-4-aminoazobenzene, 2-methyl-5-methoxy-4-aminobenzene, 2-methyl-4 ', 5-dimethoxy-4-aminoazobenzene, 4'-chloro-2-methyl-5-methoxy-4-aminoazobenzene, 4'-nitro-2-methyl-5-methoxy-4-aminoazobenzene, 4'-chloro-2-methyl-4-aminoazobenzene, 2,5-dimethoxy-4-aminoazobenzene, 4'-chloro-2,5-dimethoxy-4-aminoazobenzene, 4'-nitro-2,5-dimethoxy-4-aminobenzene, 4'-chloro-2,5-dimethyl-4-aminobenzene, 4'-methoxy-2,5-dimethyl-4-aminoazobenzene, 4'-nitro-4-aminoazobenzene, 3,5-dibromo-4-aminoazobenzene, 2,3'-dichloro-4-aminoazobenzene, 3-Nethoxy-4-aminoazobenzene, 4'-hydroxy-2'-methyl-4-aminoazobenzene.
Reste R sind neben Wasserstoff beispielsweise Äthyl, n- oder i-Propyl, Butyl, Pentyl, a-Äthylpentyl, Phenyl oder Methylphenyl und vorzugsweise Methyl.In addition to hydrogen, radicals R are, for example, ethyl, n- or i-propyl, Butyl, pentyl, a-ethylpentyl, phenyl or methylphenyl and preferably methyl.
Neben Wasserstoff kommen für A z. B. die folgenden Substituenten in Betracht: Alkyl mit 1 bis 8 C-Atomen, gegebenenfalls durch Hydroxy, Cyan, Alkoxy mit 1 bis 8 C-Atomen, Phenoxy, Phenoxyäthoxy oder Benzyloxy substituiertes Alkyl, Cyclohexyl, Norbornyl, Benzyl, Phenyläthyl, Phenylhydroxyäthyl, Phenylpropyl, Phenylbutyl, gegebenenfalls durch Chlor, Methyl, Methoxy oder Äthoxy substituiertes Phenyl, Polyalkoxyalkyl, Hydroxypolyalkoxyalkyl, Alkanoyloxyalkyl oder Alkoxycarbonylalkyl, sowie Alkanoyl, Aralkanoyl, Aroyl, Alkylsulfonyl oder Arylsulfonyl.In addition to hydrogen, A z. B. the following substituents in Consideration: alkyl having 1 to 8 carbon atoms, optionally through hydroxy, cyano, alkoxy alkyl substituted with 1 to 8 carbon atoms, phenoxy, phenoxyethoxy or benzyloxy, Cyclohexyl, norbornyl, benzyl, phenylethyl, phenylhydroxyethyl, phenylpropyl, phenylbutyl, phenyl, polyalkoxyalkyl, optionally substituted by chlorine, methyl, methoxy or ethoxy, Hydroxypolyalkoxyalkyl, alkanoyloxyalkyl or alkoxycarbonylalkyl, as well as alkanoyl, Aralkanoyl, aroyl, alkylsulfonyl or arylsulfonyl.
Als Reste A kommen im einzelnen außer den schon genannten z. B. in Betracht: 1. gegebenenfalls substituierte Alkylreste: CH3, C2H5, n- oder i-C3H7, n- oder i-C4H9, C6H13, CH2CH2OH, (CH2)3OH, (CH2)40H, (CH2)60H, (CH2)2O(CH2)2OH, (CH2)3O(CH2)4OH, (CH2)3OC2H4OH, (CH2)2CN, (CH2)5CN, (CH2)6CH, (CH2)7CN, (CH2)2O(CH2)2CN, (CH2)3O(CH2)2CN (CH2)2O(CH2)2O(CH2)2CN, (CH2)3OC2H4OCH3, (CH2)3OC2H4OC2H5, (CH2)3O(CH2)6OH, (CH)3OC2H4OCH(CH3)2, (CH2)3OC2H4OC4H9, (CH2)3OC2H4OCH2C6H5, (CH2)3OC2H4OC2H4C6H5, (CH2)3OC2H4OC6H5, (CH2)3OCHCH2OC4H9, CH3 die entsprechenden Reste, bei denen die Gruppierungen oder -OCH-OH2-zwei- oder dreimal vorhanden sind; CH2CH2OCH3, CH2CH2OC2H5, CH2CH2OC3H7, CH2CH2OC4H9, CH2CH2OC6H5, (CH2)3OCH3, (CH2)3OC2H5, (CH2)3OC3H7, (CH2)3OC4H9, (CH2)3OC6H13, (CH2)3OC8H17, (CH2)3O-, (CH2)3OCH2C6H5, (CH2)3OC2H4C6H5, (CH2)3OC6H5, 2. gegebenenfalls substituierte Cyclo- und Polycycloalkylreste: 3. Aralkylreste: CH2C6H5, C2H4C6H5, sowie C6H4CH3 anstelle von C6H5; 4. gegebenenfalls substituierte Phenylreste: C6H5, C6H4CH3, C6H3(CH3)2, C6H4OCH3, C6H4OC2H5, C6H4OCH2CH2OH oder C6H4Cl; 5. CH2CH=CH2, (CH2)5COOCH3, wobei n = 2, 3, 4 oder 6 ist, C2H4OCOCH3, C2H4OCHO, C2H4OCOCH3,(C2H4O)2COCH3, (C2H4O)2CHO, (CH2)3OCOCH3, (CH2)3OCHO.As radicals A come in detail apart from those already mentioned z. B. possible: 1. optionally substituted alkyl radicals: CH3, C2H5, n- or i-C3H7, n- or i-C4H9, C6H13, CH2CH2OH, (CH2) 3OH, (CH2) 40H, (CH2) 60H, (CH2) 2O (CH2) 2OH, (CH2) 3O (CH2) 4OH, (CH2) 3OC2H4OH, (CH2) 2CN, (CH2) 5CN, (CH2) 6CH, (CH2) 7CN, (CH2) 2O (CH2) 2CN, (CH2) 3O (CH2) 2CN (CH2) 2O (CH2) 2O (CH2) 2CN, (CH2) 3OC2H4OCH3, (CH2) 3OC2H4OC2H5, (CH2) 3O (CH2) 6OH, (CH) 3OC2H4OCH (CH3) 2 , (CH2) 3OC2H4OC4H9, (CH2) 3OC2H4OCH2C6H5, (CH2) 3OC2H4OC2H4C6H5, (CH2) 3OC2H4OC6H5, (CH2) 3OCHCH2OC4H9, CH3 the corresponding residues in which the groupings or -OCH-OH2-are present two or three times; CH2CH2OCH3, CH2CH2OC2H5, CH2CH2OC3H7, CH2CH2OC4H9, CH2CH2OC6H5, (CH2) 3OCH3, (CH2) 3OC2H5, (CH2) 3OC3H7, (CH2) 3OC4H9, (CH2) 3OC6H13, (CH2) 3OC8H17, (CH2) 3O-, (CH2) 3OCH2C6H5, (CH2) 3OC2H4C6H5, (CH2) 3OC6H5, 2. optionally substituted cyclo- and polycycloalkyl radicals: 3. Aralkyl radicals: CH2C6H5, C2H4C6H5, as well as C6H4CH3 instead of C6H5; 4. optionally substituted phenyl radicals: C6H5, C6H4CH3, C6H3 (CH3) 2, C6H4OCH3, C6H4OC2H5, C6H4OCH2CH2OH or C6H4Cl; 5. CH2CH = CH2, (CH2) 5COOCH3, where n = 2, 3, 4 or 6, C2H4OCOCH3, C2H4OCHO, C2H4OCOCH3, (C2H4O) 2COCH3, (C2H4O) 2CHO, (CH2) 3OCOCH3, (CH2) 3OCHO.
6. CHO, CH3CO, C2H5CO, C3H7CO, C2H5CO, CH3C6H4CO, C6H5CH2CO, C6H5OCH2CO, CH3SO2, C2H5SO2, C6H5SO2 oder CH3C6H4SO2.6. CHO, CH3CO, C2H5CO, C3H7CO, C2H5CO, CH3C6H4CO, C6H5CH2CO, C6H5OCH2CO, CH3SO2, C2H5SO2, C6H5SO2 or CH3C6H4SO2.
Bevorzugte Substituenten A sind beispielsweise: Wasserstoff, CH3, C2H5, n- oder i-C3H7, n- oder i-O4H9, C6H13, OH2CH2OH, (CH2)30H, (CH2)4OH, (CH2)6OH, (CH2)2O(CH2)2OH, (CH2)3O(CH2)2OH, (CH2)3O(CH2)4OH, (CH2)3O(CH2)6OH, CH2CH2OCH3, CH2CH2OC2H5, CH2CH2OC4H9, (CH2)3OCH3, (CH2)3OC2H5, (CH2)3OC3H7, (CH2)3OC4H9, (CH2)3OC2H4OCH3, (CH2)3OC2H4OC4H9, (CH2)3OC2H4OC6H5, CH2C6H5, C2H4C6H5, C6H5, C6H4CH3, C6H4OCH3 oder C6H4OC2H4OH.Preferred substituents A are, for example: hydrogen, CH3, C2H5, n- or i-C3H7, n- or i-O4H9, C6H13, OH2CH2OH, (CH2) 30H, (CH2) 4OH, (CH2) 6OH, (CH2) 2O (CH2) 2OH, (CH2) 3O (CH2) 2OH, (CH2) 3O (CH2) 4OH, (CH2) 3O (CH2) 6OH, CH2CH2OCH3, CH2CH2OC2H5, CH2CH2OC4H9, (CH2) 3OCH3, (CH2) 3OC2H5, (CH2) 3OC3H7, (CH2) 3OC4H9, (CH2) 3OC2H4OCH3, (CH2) 3OC2H4OC4H9, (CH2) 3OC2H4OC6H5, CH2C6H5, C2H4C6H5, C6H5, C6H4CH3, C6H4OCH3 or C6H4OC2H4OH.
Zur Herstellung der Farbstoffe der Formel I kann man eine Diazoverbindung von Aminen der Formel II D-NH2 II mit Kupplungskomponenten der Formel III umsetzen, wobei D, R, X und A die angegebene Bedeutung haben.To prepare the dyestuffs of the formula I, a diazo compound of amines of the formula II D-NH2 II can be used with coupling components of the formula III implement, where D, R, X and A have the meaning given.
Die Diazotierung der Amine erfolgt wie üblich. Die Kupplung wird ebenfalls wie üblich in wäßrigem Medium, gegebenenfalls unter Zusatz von Lösungsmitteln, bei stark bis schwach saurer Reaktion durchgeführt.The amines are diazotized as usual. The clutch will also as usual in an aqueous medium, optionally with the addition of solvents strongly to weakly acidic reaction carried out.
Die Herstellung der Farbstoffe der Formel I ist in dem Patent (Patentanmeldung P 20 62 717.2) beschrieben, die Angaben dort gelten hier sinngemäß.The preparation of the dyes of the formula I is described in the patent (patent application P 20 62 717.2), the information there applies accordingly.
Technisch besonders wertvoll sind Farbstoffe und Farbstoffgemische der Formel I a in der B Nitro, Cyan, Chlor, Brom, Trifluormethyl, Carbomethoxy, Carboäthoxy, ß-Methoxyearbäthoxy, Methylsulfonyl, Äthylsulfonyl, Methyl, Methoxy oder Phenylazo, B1 2'asserstoff, Nitro, Chlor, Brom, Cyan, Methyl, Methoxy, Carbomethoxy, Phenylsulfonyl, Carboäthoxy, Methylsulfonyl oder Äthylsulfonyl und B2 Wasserstoff, Chlor, Brom, Cyan oder Methyl und A unabhängig voneinander Wasserstoff gegebenenfalls substituiertes Alkyl, Cycloalkyl, Aralkyl, Phenyl oder Acyl bedeuten.Dyes and dye mixtures of the formula I a are particularly useful industrially in B nitro, cyano, chlorine, bromine, trifluoromethyl, carbomethoxy, carboethoxy, ß-methoxyearbethoxy, methylsulfonyl, ethylsulfonyl, methyl, methoxy or phenylazo, B1 2'hydrogen, nitro, chlorine, bromine, cyano, methyl, methoxy, carbomethoxy, Phenylsulfonyl, carboethoxy, methylsulfonyl or ethylsulfonyl and B2 denote hydrogen, chlorine, bromine, cyano or methyl and A independently denote hydrogen, optionally substituted alkyl, cycloalkyl, aralkyl, phenyl or acyl.
Sauerstoffhaltige Reste A, insbesondere solche mit Alkoxygruppen, sind bevorzugt.Oxygen-containing radicals A, in particular those with alkoxy groups, are preferred.
Weiterhin sind besonders wertvoll die entsprechenden Farbstoffe, die als Diazokomponenten gegebenenfalls durch Nitro, Chlor, Brom, Cyan, Methyl, Methylmercapto, ß-Carbomethoxyäthylmercapto, ß-Carboäthoxyäthylmercapto, Carbomethoxy, Carboäthoxy oder Acetal substituiertes Benzthiazol, Benzisothiazol, Thiazol, Thiadia7,ol oder Thiophen enthalten.Furthermore, the corresponding dyes are particularly valuable as diazo components, if necessary by nitro, chlorine, bromine, cyano, methyl, methyl mercapto, ß-Carbomethoxyäthylmercapto, ß-Carboethoxyäthylmercapto, Carbomethoxy, Carboethoxy or acetal substituted benzothiazole, benzisothiazole, thiazole, thiadia7, ol or Contains thiophene.
Von den besonders wertvollen Diazokomponenten seien im einzelnen genannt: 4-Nitroanilin, 2-Chlor-4-nitroanilin, 2-Brom-4-nitroanilin, 2-Cyan-4-nitroanilin, 2-Methoxy-4-nitroanilin, 2-Amino-5-nitrophenylsulfonsäuredimethylamid, 2-Amino-5-nitrophenylsulfonsäurebutylamid, 2-Amino-5-nitrophenylsulfonsäure-B-methoxyäthylamid, 2-Aminobenzonitril, 3-Chlor-4-aminobenzonitril, 2-Chlor-5-aminobenznitril, 2-Amino-5-chlorbenzonitril, 3,5-Dichlor-2-aminobenzonitril, 1 -Amino-2,4-dicyanbenzol, 1-Amino-2,4-dicyan-6-chlorbenzol' 2-Chlor-4-amino-5-nitrobenzonitril, 2-Amino-3-chlor-5-nitrobenzonitril, 2-Amino-3-brom-5-nitrobenzonitril, 2,6-Dicyan-4-nitroanilin, 2,5-Dichlor-4-nitroanilin, 2,6-Dichlor-4-nitroanilin, 2,6-Dibrom-4-nitroanilin, 2-Chlor-6-brom-4-nitroanilin, 2,4-Dinitroanilin, 2,4-Dinitro-6-chloranilin, 2,4-Dinitro-6-bromanilin, 2-Amino-3, 5-dinitrobenzonitril, 1 -Amino-4-nitrobenzol-2-methylsulfon, 1-Amino-4-nitrobenzol-2-äthylsulfon, 4-Methylsulfonylanilin, 1-Amino-2-chlorbenzol-4-methylsulfon, 1-Amino-2,6-dibrombenzol-4-methylsulfon, 1-Amino-2,6-dichlorbenzol-4-methylsulfon, 2-Amino-diphenylsulfon, 2-Amino-5-nitrobenzoesäure ester, 2-Amino-3-chlor-5-nitrobenzoesäureester, 2-Amino-3,5-dichlorbenzoesäureester, 4-Aminoazobenzol, 2,3'-Dimethyl-4-aminoazobenzol, 2',3-Dimethyl-4-aminoazobenzol, 2,5-Dimethyl-4-aminoazobenzol, 3,5-Dibrom-4-aminoazobenzol, 2,4-Dicyan-3,5-dimethylanilin, 2-Trifluormethylanilin, 2-Trifluormethyl-4-chloranilin.Some of the particularly valuable diazo components are: 4-nitroaniline, 2-chloro-4-nitroaniline, 2-bromo-4-nitroaniline, 2-cyano-4-nitroaniline, 2-methoxy-4-nitroaniline, 2-amino-5-nitrophenylsulfonic acid dimethylamide, 2-amino-5-nitrophenylsulfonic acid butylamide, 2-amino-5-nitrophenylsulfonic acid-B-methoxyethylamide, 2-aminobenzonitrile, 3-chloro-4-aminobenzonitrile, 2-chloro-5-aminobenzonitrile, 2-amino-5-chlorobenzonitrile, 3,5-dichloro-2-aminobenzonitrile, 1-amino-2,4-dicyanobenzene, 1-amino-2,4-dicyan-6-chlorobenzene ' 2-chloro-4-amino-5-nitrobenzonitrile, 2-amino-3-chloro-5-nitrobenzonitrile, 2-amino-3-bromo-5-nitrobenzonitrile, 2,6-dicyan-4-nitroaniline, 2,5-dichloro-4-nitroaniline, 2,6-dichloro-4-nitroaniline, 2,6-dibromo-4-nitroaniline, 2-chloro-6-bromo-4-nitroaniline, 2,4-dinitroaniline, 2,4-dinitro-6-chloroaniline, 2,4-dinitro-6-bromaniline, 2-amino-3, 5-dinitrobenzonitrile, 1-amino-4-nitrobenzene-2-methylsulfone, 1-amino-4-nitrobenzene-2-ethylsulfone, 4-methylsulfonylaniline, 1-amino-2-chlorobenzene-4-methylsulfone, 1-amino-2,6-dibromobenzene-4-methylsulfone, 1-amino-2,6-dichlorobenzene-4-methylsulfone, 2-amino-diphenylsulfone, 2-amino-5-nitrobenzoic acid ester, 2-amino-3-chloro-5-nitrobenzoic acid ester, 2-amino-3,5-dichlorobenzoic acid ester, 4-aminoazobenzene, 2,3'-dimethyl-4-aminoazobenzene, 2 ', 3-dimethyl-4-aminoazobenzene, 2,5-dimethyl-4-aminoazobenzene, 3,5-dibromo-4-aminoazobenzene, 2,4-dicyano-3,5-dimethylaniline, 2-trifluoromethylaniline, 2-trifluoromethyl-4-chloroaniline.
Von den besonders wertvollen heterocyclischen Diazokomponenten seien erwähnt: 2-Amino-5-nitrothiazol, 2-Amino-4-methyl-5-nitrothiazol, 2-Amino-4-methylthiazol-5-carbonsäureäthylester, 2-Amino-5-phenyl 1,3,4-thiadiazol, 3-Phenyl-5-amino-1,2,4-thiadiazol, 3-Methylmercapto-5-amino-1,2,4-thiadiazol, 3-ß-Carbomethoxyäthylmercapto-5-amino-1,2,4-thiadiazol, 3-ß-Carboäthoxyäthylmercapto-5-amino-1,2,4-thiadiazol, 2-Amino-6-cyanbenzthiazol, 2-Amino-6-carbonsäuremethylesterbenzthiazol, 2-Amino-6-nitrobenzthiazol, 2-Amino-3-cyan-4-methylthiophen-5-carbonester, 3-Amino-5-nitro-2,1-benzisothiazol, 3-Amino-5-nitro-7-chlor-2, 1-benzisothiazol, 3-Amino-5-nitro-7-brom-2, 1-benzisothiazol, 4-Amino-7-nitro-1,2-benzisothiazol, 4-Amino-5-brom-1,2-benzisothiazol, 4-Amino-5-brom-7-nitro-1,2-benzisothiazol, 4-Amino-5-cyan-7-nitro-1,2-benzisothiazol, 4-Amino-5-chlor-7-nitro-1,2-benzi 8 othiazol, 4-Aminobenzisothiazol.Of the particularly valuable heterocyclic diazo components are mentioned: 2-amino-5-nitrothiazole, 2-amino-4-methyl-5-nitrothiazole, 2-amino-4-methylthiazole-5-carboxylic acid ethyl ester, 2-amino-5-phenyl 1,3,4-thiadiazole, 3-phenyl-5-amino-1,2,4-thiadiazole, 3-methylmercapto-5-amino-1,2,4-thiadiazole, 3-ß-Carbomethoxyethylmercapto-5-amino-1,2,4-thiadiazole, 3-ß-Carboethoxyethylmercapto-5-amino-1,2,4-thiadiazole, 2-amino-6-cyanobenzothiazole, 2-amino-6-carboxylic acid methyl ester benzothiazole, 2-amino-6-nitrobenzthiazole, 2-amino-3-cyano-4-methylthiophene-5-carbon ester, 3-Amino-5-nitro-2,1-benzisothiazole, 3-Amino-5-nitro-7-chloro-2, 1-benzisothiazole, 3-Amino-5-nitro-7-bromo-2, 1-benzisothiazole, 4-amino-7-nitro-1,2-benzisothiazole, 4-amino-5-bromo-1,2-benzisothiazole, 4-amino-5-bromo-7-nitro-1,2-benzisothiazole, 4-amino-5-cyano-7-nitro-1,2-benzisothiazole, 4-Amino-5-chloro-7-nitro-1,2-benzi 8 othiazole, 4-aminobenzisothiazole.
Überraschenderweise eignen sich die Farbstoffe der Formel I zum Färben zu von Thermoplasten in der Masse, bei Temperaturen von bis ungefähr 300 00. Dieses Verhalten war bei den Azofarbstoffen der Formel I nicht vorhersehbar, da Dispersions-Azofarbstoffe normalerweise nicht so temperaturstabil sind. Insbesondere überrascht es, daß die Azo-Farbstoffe beim Einschmelzen in Polyamid hoch temperaturstabil sind. Färbbare Thermoplasten sind beispielsweise Polystyrol, Hart-Polyvinylchlorid, Polyäthylen, Polyamid, Polyester, Polypropylen, sowie Styrol-Butadien Gemische oder Acrylnitril-Butadien-Styrol Gemische. Man erhält Färbungen mit vorzüglichen Echtheiten, insbesondere Licht-, Wetter- und Weichmacherechtheiten. Die Weichmacherechtheiten lassen sich zudem durch die Wahl der Reste A steuern, die Lichtechtheit hängt im wesentlichen von D und X ab.Surprisingly, the dyes of the formula I are suitable for dyeing to of thermoplastics in bulk, at temperatures of up to about 300 00. This The behavior of the azo dyes of the formula I could not be foreseen, as dispersion azo dyes are usually not as temperature stable. In particular, it is surprising that the Azo dyes are highly temperature stable when melted in polyamide. Dyeable Thermoplastics are, for example, polystyrene, hard polyvinyl chloride, polyethylene, Polyamide, polyester, polypropylene, as well as styrene-butadiene mixtures or acrylonitrile-butadiene-styrene Mixtures. The dyeings obtained have excellent fastness properties, in particular light, Weather and plasticizer fastnesses. The plasticizer fastnesses can also be passed through control the choice of the radicals A, the light fastness depends essentially on D and X off.
In den folgenden Beispielen beziehen sich Angaben über Teile und Prozente, sofern nicht anders vermerkt, auf das Gewicht.In the following examples, parts and percentages relate to unless otherwise noted, by weight.
Beispiel 1 29,5 Teile 2-Aminobenzonitril werden bei Raumtemperatur in 800 Raumteilen Wasser und 80 Raumteilen 30 zeiger Salzsäure gelöst. Dann setzt man 750 Teile Eis und bei 0 bis 5 0 77 Baumteile einer 23 zeigen Natriumnitritlösung auf einmal zu. Nach zwei Stunden Rühren bei 0 bis 5 0 wird die klare bis trübe Diazoniumsalzlösung mit folgender Suspenion versetzt: 66,0 Teile 2,6-Bis-(ß-methoxyäthylamino)-5-cyan-4-methylpyridin werden in 80 Raumteilen Dimethylformamid unter Erwärmen gelöst, dann setzt man 12,5 Teile eines Anlagerungsproduktes von etwa 23 Mol Äthylenoxyd an 1 Mol Spermölalkohol zu und gibt die Lösung unter Rühren zu einem Gemisch aus 30 Raumteilen 30 %iger Salzsäure und 10Q0 Raumteilen Wasser.Example 1 29.5 parts of 2-aminobenzonitrile are at room temperature dissolved in 800 parts by volume of water and 80 parts by volume of 30 pointers hydrochloric acid. Then sets 750 parts of ice and 0 to 5 0 77 tree parts of a 23 show sodium nitrite solution at once to. After two hours of stirring at 0 to 50, the clear to cloudy diazonium salt solution becomes mixed with the following suspension: 66.0 parts of 2,6-bis (ß-methoxyethylamino) -5-cyano-4-methylpyridine are dissolved in 80 parts by volume of dimethylformamide with heating, then 12.5 are added Parts of an adduct of about 23 moles of ethylene oxide with 1 mole of sperm oil alcohol and adds the solution with stirring to a mixture of 30 parts by volume of 30% strength Hydrochloric acid and 10Q0 parts by volume of water.
lö sung Die Kupplungswird mit etwa 500 bis 1000 Teilen Eis und dann mit etwa 65 Teilen 50 %iger Natronlauge versetzt, bis der pE-wert des Gemisches 2,5 bis 3,2 ist. Nach beendeter Kupplung wird das Gemisch auf 70 OC erwärmt, abfiltriert und mit heißem Wasser gewaschen. Nach dem Trocknen erhält man etwa 97 bis 98 Teile eines gelben Pulvers der Formel das sich in Dimethylformamid mit gelber Farbe löst.solution The coupling is mixed with about 500 to 1000 parts of ice and then with about 65 parts of 50% sodium hydroxide solution until the pE value of the mixture is 2.5 to 3.2. After the coupling has ended, the mixture is heated to 70 ° C., filtered off and washed with hot water. After drying, about 97 to 98 parts of a yellow powder of the formula are obtained which dissolves in dimethylformamide with a yellow color.
0,5 Teile dieses Farbstoffes werden mit 1000 Teilen Polystyrolgranulat oder -Pulver nach bekanntem Verfahren intensiv vermischt. Anschließend wird das Gemisch geschmolzen. Der Farbstoff löst sich dabei und ist in der Schmelze bis 300 0 stabil. Nach dem Erstarren erhält man eine kräftig gelb gefärbte Polystyrolmasse mit vorzüglicher Lichtechtheit.0.5 parts of this dye are mixed with 1000 parts of polystyrene granules or powder mixed intensively according to a known method. Then the Melted mixture. The dye dissolves in the process and is up to 300 in the melt 0 stable. After solidification, a bright yellow colored polystyrene mass is obtained with excellent lightfastness.
Der Farbstoff läßt sich ebenso temperaturstabil in Polyamid einschmelzen.The dye can also be melted into polyamide in a temperature-stable manner.
Auch diese Massefärbung ist sehr gut lichtecht. Weiterhin ist er sehr gut zur Massefärbung von Polypropylen, Polyäthylen, Polyvinylchlorid und Polyester geeignet.This mass coloring is also very lightfast. Furthermore, he is very good for mass coloring polypropylene, polyethylene, polyvinyl chloride and polyester suitable.
Beispiel 2 78 Teile 1-Amino-2-trifluormethyl-4-chlor-benzol werden bei 0 bis 20 °C in 400 Teilen96 der Schwefelsäure ist. Man kühlt das Gemisch auf 0 - 4 °C ab, setzt 130 Teile 45 %ige Nitrosylschwefelsäure zu und rührt 3 Stunden bei 0 bis 5 00. Dann wird das Gemisch unter Rührern auf 1200 Teile Eis gegeben, 30 Minuten nachgerührt und filtriert. Nach Zerstörung von überschüssiger salpetriger Säure wird die Diazoniumsalzlösung mit 117 Teilen der Kupplungskomponente der Formel versetzt und der pH-Wert der Kupplungslösung durch Zusatz von Natronlauge bei 0 bis 50C auf 2 bis 3 angehoben. Nach beendeter Kupplung saugt man den ausgefallenen Farbstoff der Formel ab, wäscht ihn mit Wasser und trocknet.Example 2 78 parts of 1-amino-2-trifluoromethyl-4-chlorobenzene are dissolved in 400 parts of sulfuric acid at 0 to 20 ° C. The mixture is cooled to 0-4 ° C., 130 parts of 45% strength nitrosylsulfuric acid are added and the mixture is stirred for 3 hours at 0-5,000. The mixture is then poured onto 1200 parts of ice with stirring, stirred for 30 minutes and filtered. After excess nitrous acid has been destroyed, the diazonium salt solution with 117 parts of the coupling component of the formula added and the pH of the coupling solution was raised to 2 to 3 by adding sodium hydroxide solution at 0 ° to 50 ° C. After the coupling has ended, the dyestuff of the formula which has precipitated out is sucked off wash it off with water and dry it.
Färbt man 1 000 Teile Polystyrol mit 0,5 Teilen dieses Farbstoffs analog Beispiel 1, so erhält man eine gelb gefärbte Polystyrolmasse mit sehr guter Lichtechtheit.1,000 parts of polystyrene are dyed with 0.5 part of this dye analogously to Example 1, a yellow-colored polystyrene composition with a very good color is obtained Lightfastness.
In gleicher Weise kann man auch die in den folgenden Tabellen durch Angabe der Substituenten gekennzeichneten Farbstoffe zur Massefärbung verwenden, wobei man die ebenfalls angegebenen Farbtöne erhält.In the same way you can also go through those in the following tables Use indication of the substituents marked dyes for mass coloring, whereby the color shades also given are obtained.
Tabelle 1
Claims (2)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2409754A DE2409754A1 (en) | 1974-03-01 | 1974-03-01 | Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the melt |
US05/551,493 US3974123A (en) | 1974-03-01 | 1975-02-20 | Dyes for thermoplastics |
IT7548395A IT1029901B (en) | 1974-03-01 | 1975-02-28 | DYES FOR THERMOPLASTS |
JP2410875A JPS539780B2 (en) | 1974-03-01 | 1975-02-28 | |
FR7506343A FR2262681B1 (en) | 1974-03-01 | 1975-02-28 | |
BE153897A BE826160A (en) | 1974-03-01 | 1975-02-28 | PROCESS FOR COLORING THERMOPLASTIC RESINS |
NL7502419A NL7502419A (en) | 1974-03-01 | 1975-02-28 | THERMOPLAST DYES. |
GB8384/75A GB1499181A (en) | 1974-03-01 | 1975-02-28 | Dyes for thermoplastics |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2409754A DE2409754A1 (en) | 1974-03-01 | 1974-03-01 | Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the melt |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2409754A1 true DE2409754A1 (en) | 1975-10-16 |
Family
ID=5908771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2409754A Pending DE2409754A1 (en) | 1974-03-01 | 1974-03-01 | Heat-stable dyes of 2,6-diamino-pyridine series - for dyeing thermoplastics in the melt |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE826160A (en) |
DE (1) | DE2409754A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009299A1 (en) * | 1978-07-03 | 1980-04-02 | Imperial Chemical Industries Plc | Colour stabilized organic material |
-
1974
- 1974-03-01 DE DE2409754A patent/DE2409754A1/en active Pending
-
1975
- 1975-02-28 BE BE153897A patent/BE826160A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009299A1 (en) * | 1978-07-03 | 1980-04-02 | Imperial Chemical Industries Plc | Colour stabilized organic material |
Also Published As
Publication number | Publication date |
---|---|
BE826160A (en) | 1975-08-28 |
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