The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 29, 1983
Filed:
Dec. 23, 1980
Ernst Hoyer, Frankfurt am Main, DE;
Fritz Meininger, Frankfurt am Main, DE;
Rudolf Fass, Kelkheim, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
Water-soluble compounds and their salts suitable as dyestuffs of the formula ##STR1## in which D is a benzene or naphthalene nucleus, R.sub.1 and R.sub.2 are, inter alia, hydrogen, halogen, lower alkyl, lower alkoxy and sulfo, R.sub.1 being in ortho-position to the azo group, X is a fiber-reactive radical of the vinyl sulfone series, K.sub.1 and K.sub.2 are radicals of coupling components of the acetoacetarylide and pyrozolone series and K.sub.2 additionally denotes a radical of the sulfonaphthol series, the coupling components being bound to the triazine ring via amino groups, Y is a halogen atom, a sulfo group, a thio ether or oxygen ether radical, or a primary, secondary or tertiary amino group, A is an aliphatic, aliphatic-heterocyclic, aliphatic-aromatic or aromatic bridge member and n is zero or one. The novel compounds are prepared, for example, by reacting 2 mols of the diazo component with the fiber-reactive radical of the vinyl sulfone series with 1 mol of a bivalent coupling component containing the two radicals K.sub.1 and K.sub.2 linked to each other by the triazine ring, or 2 triazine radicals linked with each other by bridge member A; or by reacting one mol each of a monoazo compound consisting of the said diazo component with the fiber reactive radical and a coupling component K.sub.1 or K.sub.2 with a corresponding triazine radical additionally carrying a halogen atom capable of reacting with the amino group. The metal-free compounds can be transformed into the corresponding heavy metal complex, preferably copper, cobalt and chromium complex compounds, by treatment with an agent donating a heavy metal cation. The novel compounds are excellently suitable for dyeing and printing fiber material of natural and regenerated cellulose and natural, regenerated and synthetic polyamides. They are distinguished by high tinctorial strength, a very good uptake from a long liquor, a good color-build up. The dyeings and prints obtained therewith have a high fastness to processing and in use.