Abstract: Novel mono-azide substituted rylene-imide derivatives, their use in methods for the detection of analytes and reagents kits for the detection of analytes comprising said novel mono-azide substituted rylene-imide derivatives.

Abstract: A process for preparing a liquid formulation of salts of sulfonated azo dyes, comprising a) preparing vesuvin from m-phenylenediamine; b) without interveningly isolating the vesuvin coupling an at least equimolar amount of diazotized aminoarylsulfonic acids I H2N—Ar—SO3H??(I), where Ar is phenylene (which may be monosubstituted by sulfo) or naphthalene (which may be mono- or disubstituted by sulfo and/or monosubstituted by hydroxyl) onto vesuvin and c) isolating the dyes in their acid form and subsequently dissolving them in aqueous bases.

Abstract: A process for preparing quaterrylene-3,4:13,14-tetracarboximides of the general formula I in which R, R? are each independently hydrogen or optionally substituted C1-C30-alkyl, C5-C8-cycloalky or aryl or hetaryl; which comprises reacting a perylene-3,4-dicarboximide of the general formula IIa in the presence of a base-stable, high-boiling, organic solvent and of an alkali metal base or alkaline earth metal base, with a perylene-3,4-dicarboximide of the general formula IIb in which X is hydrogen, bromine or chlorine.

Abstract: The present invention relates to aqueous liquid formulations comprising 5-30% by weight of a dye composition comprising 25-85% by weight of Direct Brown 44 15-75% by weight of Direct Yellow 11 and/or of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 0-15% by weight of one or more blue direct dyes and 0-10% by weight of one or more red direct dyes all based on the dye composition 0.5-15% by weight of one or more alkylamines whose one, two or three alkyl radicals may each be substituted by one or two hydroxyl groups and/or amino groups and/or interrupted by one or two oxygen atoms in ether function, based on the total weight of the aqueous liquid formulation, the sodium content of the liquid formulation not exceeding 0.3% by weight, and also their use for dyeing cellulose material especially paper.

Abstract: This invention relates to process for preparing fluorinated dyes selected from the group consisting of compounds of the general formulae (I) and (III) and mixtures thereof by reacting the corresponding compounds which do not have R12 or R30 as substituents with compounds of the general formula R12A or R30A where A is selected from the group consisting of I and Br, the compounds obtained from said process and the use of these fluorinated dyes in electrophoretic displays.

Abstract: A process for preparing perylene-3,4-dicarboximides which bear a sterically demanding substituent on the imide nitrogen atom by reacting a perylene-3,4:9,10-tetracarboxylic dianhydride with a sterically hindered primary amine in a substantially anhydrous reaction medium, which comprises undertaking the reaction in the presence of a tertiary amine, of a solvent based on a cyclic imine or amide and of a Lewis acid as a catalyst.

Abstract: The present invention relates to aqueous liquid formulations comprising 5-25% by weight of a dye composition comprising 70-95% by weight of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 1-30% by weight of a blue direct dye and 0-20% by weight of a red direct dye (all based on the dye composition) 1-15% by weight of a saturated, cyclic or acyclic water-soluble amine comprising a primary, secondary or tertiary amino group and at least one further functional group selected from primary, secondary and tertiary amino groups, OH groups and ether groups, and 1-30% by weight of urea based on the total weight of the aqueous liquid formulation, wherein the total amount of water-soluble amine and urea does not exceed 40% by weight, and also their use for dyeing cellulose material especially paper.

Abstract: Printing inks for offset and/or letterpress printing which comprise NIR absorbers, and solubility of the NIR absorber in the printing ink is at least 0.1% by weight. NIR absorbers consisting of cyanine cation with an anion which has long-chain alkyl or aralkyl groups. Use of such printing inks for printing processes in which the curing of the printing ink is promoted by using IR lasers. NIR absorbers comprising a cyanine cation with an anion which has long-chain alkyl or aralkyl groups.

Abstract: A process for producing a liquid formulation of salts of sulfonated azo dyes by coupling an at least equimolar amount of diazotized aminoarylsulfonic acids I H2N—Ar—SO3H??(I), where Ar is phenylene (which may be monosubstituted by sulfo) or naphthylene (which may be mono- or disubstituted by sulfo and/or monosubstituted by hydroxyl) onto the coupling product of an unsubstituted or methyl-substituted phenylenediamine with itself comprises dissolving the azo dye in a basic medium and then subjecting the solution to a nanofiltration.

Abstract: A process for producing a liquid formulation of a basic azo dye from a phenylenediamine I, which may be alkyl or alkoxy substituted, by diazotizing and coupling in acidic solution comprises diazotizing the phenylenediamine with sodium nitrite in the presence of at least two organic acids comprising at least one first acid (A) having a pkA value of ?40 and at least a second acid (B) having a pKA value ?4.1 and performing a nanofiltration after the coupling has ended.

Abstract: A description is given of the use of naphthalene-1,8-dicarboxylic monoimides of the formula (I), in which R1 is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl or heteroaryl and R2 is a radical containing at least one ? electron system containing a carbon atom and at least one further atom selected from carbon, oxygen, and nitrogen, with the proviso that the radical contains at least one atom other than carbon; to protect organic material from the damaging effects of light, of compositions which comprise at least one naphthalene-1,8-dicarboxylic monoimide of the formula (I) in an amount which provides protection from the damaging effects of light, and at least one organic material, and of new naphthalene-1,8-dicarboxylic monoimides (I).

Abstract: The present invention relates to an aqueous liquid formulation comprising ?5–25% by weight of a dye composition comprising 20–100% by weight of Direct Yellow 11 or of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 ?0–30% by weight of a blue direct dye, ?0–30% by weight of a red direct dye, and ?0–60% by weight of a brown direct dye all based on the dye composition, and ?1–25% by weight of poly-N-vinylformamide and/or of a polymer obtained by polymerization of a mixture of one or more ethylenically unsaturated monomers and >50% by weight of N-vinylformamide based on total monomers, based on the total weight of the aqueous liquid formulation.

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 invention relates to a method for producing a liquid formulation of salts of sulfoacidic azo dyes, comprising the following steps: a) production of vesuvine from m-phenylenediamine; b) without the intermediate isolation of the vesuvine, coupling of at least an equimolar quantity of diazotized aminoaryl sulfonic acids (I) H2N—Ar—SO3H, to vesuvine, whereby in said formula Ar represents phenylene, which is monosubstituted with a sulfo group, or represents naphthylene, which can be mono- or disubstituted with a sulfo group and/or monosubstituted with a hydroxy group; and c) isolation of the dyes in their acidic form and subsequent dissolution in aqueous bases.

Abstract: The present invention relates to an aqueous liquid formulation comprising 5-25% by weight of a dye composition comprising 20-100% by weight of Direct Yellow 11 or of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 ?0-30% by weight of a blue direct dye, ?0-30% by weight of a red direct dye, and ?0-60% by weight of a brown direct dye all based on the dye composition, and 1-25% by weight of poly-N-vinylformamide and/or of a polymer obtained by polymerization of a mixture of one or more ethylenically unsaturated monomers and >50% by weight of N-vinylformamide based on total monomers, based on the total weight of the aqueous liquid formulation.

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: A process for brightening textile materials by treatment with optical brighteners in an aqueous liquor, which comprises using from 20 to 80% by weight, each percentage being based on the sum total of all brightening compounds, of the compound I of which up to 40 mol % can be present as cis isomer, and also from 80 to 20% by weight of at least one compound II selected from and also from 0 to 30% by weight of at least one compound of the general formula III

Abstract: A heating device for heating a medium such as a human occupant within an interior room space is disclosed comprising a radiation unit for emitting infrared radiation into the room space. The radiation unit includes a construction board for constructing an interior component within the room space having a planar carrier with a visible exterior face and a planar radiator carried by the planar carrier. The planar radiator operates at one of a selected frequency and a selected frequency band corresponding to a natural frequency band of the medium being heated for resonance heating. A frequency generator excites the planar radiator to generate the desired infrared radiation for heating. The planar radiator is disposed adjacent a back surface of the construction board opposite the exterior facing of the construction board.

Abstract: A description is given of the use of naphthalene-1,8-dicarboxylic monoimides of the formula I in which R1 is hydrogen, alkyl, alkenyl, cycloalkyl, cycloalkenyl, heterocycloalkyl, aryl or heteroaryl and R2 is a radical containing at least one ? electron system containing a carbon atom and at least one further atom selected from carbon, oxygen, and nitrogen, with the proviso that the radical contains at least one atom other than carbon; to protect organic material from the damaging effects of light, of compositions which comprise at least one naphthalene-1,8-dicarboxylic monoimide of the formula I in an amount which provides protection from the damaging effects of light, and at least one organic material, and of new naphthalene-1,8-dicarboxylic monoimides I.

Abstract: The present invention relates to aqueous liquid formulations comprising 5-25% by weight of a dye composition comprising 70-95% by weight of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 1-30% by weight of a blue direct dye and 0-20% by weight of a red direct dye (all based on the dye composition) 1-15% by weight of a saturated, cyclic or acyclic water-soluble amine comprising a primary, secondary or tertiary amino group and at least one further functional group selected from primary, secondary and tertiary amino groups, OH groups and ether groups, and 1-30% by weight of urea based on the total weight of the aqueous liquid formulation, wherein the total amount of water-soluble amine and urea does not exceed 40% by weight, and also their use for dyeing cellulose material especially paper.