摘要:
Küpenfarbstoffe der Formel worin [A] und [A'] und X die im Anspruch 1 angegebene Bedeutung haben, werden beschrieben. Die Küpenfarbstoffe der Formel I eignen sich zum Färben und Bedrucken von verschiedensten Materialien, wobei insbesondere auf Cellulosematerial Färbungen mit guten Echtheiten erhalten werden.
摘要:
Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one group, wherein R is hydrogen, alkyl, provided that the a-carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R 1 -R 6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a group, which may be protonated under the reaction conditions, followed by cleavage of said cleavage is anchimerically assisted or accelerated by said to provide after protonation, an group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.
摘要:
Anthrachinone mit langkettigen Acylaminogruppen der Formel I oder II worin R zum Beispiel Heptadecyl, R 1 Phenyl, R 7 und R 9 -NHCOC 17 H 35 , R 8 und R 10 -OH und I und m je Null bedeuten, eignen sich vorzüglich zum Massefärben von Kunststoffen, insbesondere von Polyolefinen. Die Anthrachinone sind in Kunststoffen sehr gut dispergierbar und die gefärbten Produkte zeichnen sich durch ausgezeichnete Eigenschaften, insbesondere durch hohe Licht-, Wetter- und Hitzebeständigkeiten aus.
摘要:
A water-soluble anthraquinone compound of the formula: wherein A represents a divalent hydrocarbon group; X represents a divalent hydrocarbon group; and R' & R 2 each independently is H or alkyl or together, with X and the N atoms to which they are attached, represent a diazaheterocycle; R represents a monovalent hydrocarbon group; n is 0 or 1; Z is H or a group, Y-B; Y is a divalent heterocycle; and B is an activated halogen atom, and an adduct thereof with a carbohydrate substrate, capable of selectively absorbing certain proteinaceous materials and suitable for use in the chromatographic separation of proteins.
摘要:
A water-soluble anthraquinone compound of the formula: wherein
A represents a divalent hydrocarbon group; X represents a divalent hydrocarbon group; and R' & R 2 each independently is H or alkyl or together, with X and the N atoms to which they are attached, represent a diazaheterocycle; R represents a monovalent hydrocarbon group; n is 0 or 1; Z is H or a group, Y-B; Y is a divalent heterocycle; and B is an activated halogen atom, and an adduct thereof with a carbohydrate substrate, capable of selectively absorbing certain proteinaceous materials and suitable for use in the chromatographic separation of proteins.
摘要:
Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one group, wherein R is hydrogen, alkyl, provided that the a-carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R 1 -R 6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a group, which may be protonated under the reaction conditions, followed by cleavage of said cleavage is anchimerically assisted or accelerated by said to provide after protonation, an group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.