摘要:
Brightener mixtures containing from 75% by weight to 100% by weight, based on the weight of the mixture, of the bisstyryl compounds of the formulae I and II ##STR1## in a weight ratio from 10:90 to 70:30, formulations containing the novel mixtures, and also their use for optically brightening synthetic, semisynthetic or natural polymer materials.
摘要:
The preparation of N,N-disubstituted m-aminophenols from resorcinol, which is reacted, in a first step, with primary amines to form N-monosubstituted m-aminophenols, which are treated in situ, in a second step, with alkylating agents to form N,N-disubstituted m-aminophenols.
摘要:
The present invention relates to the use of specific metal complexes of dithiolenes with aryl or heteroarylsubstituted imidazolidine-2-chalcogenone-4,5-dithione ligands as colorless IR absorbers.
摘要:
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.
摘要:
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.
摘要:
The present invention provides a compound of formula The compound of formula (1) is suitable for use as semiconducting material, in particular in electronic devices.
摘要:
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.
摘要:
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.
摘要:
The present invention relates to an aqueous liquid formulation comprising 5–25% by weightof a dye composition comprising 20–100% by weightof Direct Yellow 11 or of a dye obtainable by reduction or thermal treatment of Direct Yellow 11 0–30% by weightof a blue direct dye, 0–30% by weightof a red direct dye, and 0–60% by weightof a brown direct dye all based on the dye composition, and 1–25% by weightof 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.
摘要:
A coating material and method of manufacture for radiation surfaces which produce electromagnetic waves is disclosed. The coating material consists of 55 to 65% mole fraction of a base material and 35 to 45% mole fraction of graphite. The base material contains a binding agent, insulating agent, dispersing agent, and distilled water mixed together. The binding agent is comprised of distilled water, sulfated oil, phenolene or benzoisothiazolinon, casein, urea, alkali diluent and caprolactam. The method for producing the coating material includes the steps of creating the binding agent, mixing the binding agent with the other base components, and finally, mixing in the graphite. The result is a coating material with a plurality of dipoles that produces a high degree of radiation of electromagnetic waves when in a state of excitation.