Abstract:
Verfahren zur Herstellung von Pigmenten der Formel (I) oder tautomerer Strukturen sowie ihre Hydrate davon, die Melamin oder Melaminderivate eingelagert enthalten, dadurch gekennzeichnet, dass man das Azobarbitursäure-mono-Salz der Formel (II) mit einer Nickelverbindung und Melamin oder einem Melaminderivat in Gegenwart der freien Azobarbitursäure der Formel (IΙI) umsetzt, wobei das Kation K1 ⊕ für beliebige einwertige oder für den Anteil eines beliebigen mehrwertigen Kations steht, der einer positiven Ladung von eins entspricht, ausgenommen H + .
Abstract:
The present invention relates to anionic alkylthiobarbituric acid based azo metal complex dyes and their use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write once read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs an anionic alkylthiobarbituric acid based azo metal complex dye in the optical layer.
Abstract:
The present invention relates to antipyrine-indandione based azo metal complex dyes and their use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write only read many (WORM) type optical recording medium capable of recording and reproducing information with radiation of blue laser, which employs an antipyrine-indandione based azo metal complex dye in the optical layer.
Abstract:
Verbindungen der Formel (I), worin R 1 und R 2 unabhängig voneinander für Wasserstoff oder einen beliebigen Rest stehen, insbesondere unabhängig voneinander Wasserstoff, Chlor, C 1 -C 4 -Alkyl, wie Methyl, Ethyl, n-Propyl, i-Propyl, n-Butyl, i-Butyl, tert-Butyl, C 1 -C 4 -Alkoxy, wie Methoxy, Ethoxy, n-Propyloxy, i-Propyloxy, Carboxy, Sulfamoyl, Mono- oder Dialkylsulfamoyl, insbesondere Mono- oder Di-C 1 -C 4 -alkylsulfamoyl, gegebenenfalls subsstituiertes Alkylsulfonyl, insbesondere C 1 -C 4 -Alkylsulfonyl, oder SO 3 M, bevorzugt Wasserstoff oder Sulfamoyl bedeuten, R 3 Wasserstoff, Hydroxy, Carboxy oder SO 3 M bedeutet, R 4 Wasserstoff oder SO 3 M bedeutet, k und m unabhängig voneinander 0 oder 1 bedeuten, Me für Kupfer, Kobalt oder Chrom, wobei Kupfer und Kobalt bevorzugt in der Oxidationsstufe +2 und Chrom bevorzugt in der Oxidationsstufe +3 vorliegen, bevorzugt Kupfer und Kobalt und besonders bevorzugt Kupfer steht und M für Wasserstoff, Alkalimetall, wie Natrium, Kalium oder Lithium, oder gegebenenfalls substituiertes Ammonium steht.
Abstract:
The present invention relates to barbituric acid based azo metal complex dyes and their use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write once read many (WORM) type optical data recording medium capable of recording and reproducing information with radiation of blue laser, which employs a barbituric acid based azo metal complex dye in the optical layer.
Abstract:
The present invention relates to thiobarbituric acid based azo metal complex dyes and their use in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength up to 450 nm. The invention further relates to a write once read many (WORM) type optical recording medium capable of recording and reproducing information with radiation of blue laser, which employs a thiobarbituric acid based azo metal complex dye in the optical layer.
Abstract:
1:2-metal complex dyes of the formula (I), wherein the sympols R 1 , R 1 ', R 2 , R 2 ', R 3 , R 3 ', Y, Z, n, n', Me, M and (Kat) + are defined as in the Claims, mixtures thereof, their compositions, their production and their use as anionic dyes for dyeing substrates, especially leather, in brown to red shades.
Abstract:
The invention provides heteroanellated aminophenols of the general formula (I) wherein ring A is an anellated heteroring. Furthermore, the invention provides azo compounds of the general formula (II) and azomethine compounds of the general formula (III). The invention describes the use of compounds (II) and compounds (III) for the mass coloration of substrates, as colorants in electrophotographic toners and developers, in powders and powder coating materials, in ink-jet inks and in cosmetic compositions.