Abstract: The use of cyclic compounds of the formula (I) where n is a number in the range from 1 to 7, X—Y—Z, in each case independently of one another, is O—C?N, N?C—O, NR5—C?N, N?C—NR5, N+R52—C?N, N?C—N+R52, O—C?N+R5, N+R5?C—O, S—C?N+R5, N+R5?C—S, S—C?N, N?C—S, R1, R2 and R3 each independently are, for example, H or a substituent or corresponding heterocyclic compounds in which at least one group —CR1?, —CR2?, CR3? is replaced by —N, R5 in each case independently are, for example, H or a substituent R7 in each case independently of one another, are H, C1-12-alkyl or C6-12-aryl, or metal complexes of the cyclic compounds or complexes of the cyclic compounds with mineral acids, chloride, sulfate, bisulfate, phosphate, hydrogen phosphate, nitrate, BF4? or methanesulfonate being present as opposite ions X? in the case of cationic cyclic structures, as light absorbers, materials for hole injection layers in OLEDs, light-emitting compounds in OLED, phase-transfer catalysts or synergistic agents for the dispersing

Abstract: The present invention relates to novel reactive dyes of formula I, (I), in which the variable independently denote X hydrogen, NO2, or NR3R4, Y NR5R6, OR7, SR8, or SO2R9 or a group suitable as a leaving group under the conditions of nucleophilic, aromatic substitution, R1 to R9 independently hydrogen, C1–C8 alkyl, C2–C8 alkyl, in which non-adjacent CH2 groups can be replaced by oxygen atoms, imino groups, or C1–C4 alkylimino groups, and/or CH2 groups may be replaced by carbonyl groups, C2–C8 alkenyl, or a group containing an active site or the precursor of an active site, with the proviso that at least one group R1 to R9 is present which contains an active site or the precursor of an active site. The present invention also relates to the use of the reactivedyes of formula I for dyeing substrates containing nucleophilic groups, and to compositions containing at least one reactive dye of formula I.

Abstract: The present invention relates to novel reactive dyes of the formula (I) where R1 to R4 are independently hydrogen, C1–C8-alkyl, C2–C8-alkyl, wherein nonadjacent CH2 groups may be replaced by oxygen atoms or imino or C1–C4-alkylimino groups and/or CH2 groups by carbonyl groups, C2–C8-alkenyl, aryl, arylalkylene or a moiety containing a reactive group or the precursor of a reactive group, with the proviso that at least one of R1 to R4 is a moiety which contains a reactive group or the precursor of a reactive group. The present invention further relates to the use of the reactive dyes of the formula (I) for dyeing substrates containing nucleophilic groups and to preparations containing at least one reactive dye of the formula (I).

Abstract: The use of cyclic compounds of the formula (I) where n is a number in the range from 1 to 7, X-Y-Z, in each case independently of one another, is O—C?N, N?C—O, NR5—C?N, N?C—NR5, N+R52—C?N, N?C—N+R52, O—C?N+R5, N+R5?C—O, S—C?N+R5, N+R5?C—S, S—C?N, N?C—S, R1, R2 and R3 each independently are, for example, H or a substituent or corresponding heterocyclic compounds in which at least one group —CR1?, —CR2?, CR3? is replaced by —N, R5 in each case independently are, for example, H or a substituent R7, in each case independently of one another, are H, C1-12-alkyl or C6-12-aryl, or metal complexes of the cyclic compounds or complexes of the cyclic compounds with mineral acids, chloride, sulfate, bisulfate, phosphate, hydrogen phosphate, nitrate, BF4? or methanesulfonate being present as opposite ions X? in the case of cationic cyclic structures, as light absorbers, materials for hole injection layers in OLEDs, light-emitting compounds in OLED, phase-transfer catalysts or synergistic agents for the dispe

Abstract: The present invention relates to novel reactive dyes of the formula (I) 1

Abstract: The present invention relates to novel reactive dyes of formula I 1

Abstract: Dye salts which are free from fiber-reactive radicals and have the formula where Chr is an (m+n)-valent radical of a chromophore from the series of the metal-free or metal-containing phthalocyanines, of the quinacridones, of the mono-, dis- or polyazo dyes, of the anthraquinones or copper formazans, Ar is phenyl or naphthyl each of which is unsubstituted or substituted, x⊕ is a metal cation or ammonium ion, y⊕ is a proton, metal cation or ammonium ion, m is 1 to 6 and n is 1 to 6, the sum of m and n being not more than 7, are used in methods of dyeing or printing polymeric material and in dye preparations.

Abstract: The present invention relates to a method for concentrating light by means of fluorescent compounds in plastic sheets or films, wherein perylene compounds are used for this purpose.