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:
Feb. 03, 1976
Filed:
May. 02, 1973
Alistair Howard Berrie, Manchester, EN;
Richard Budziarek, Manchester, EN;
Imperial Chemical Industries Limited, London, EN;
Abstract
A new class of cellulose reactive dyes have a sulphonated benzene, naphthalene or naphthalene azobenzene diazo component coupled on to a class of coupling components of the formula: ##SPC1## In which T.sup.1 is H, monocyclic aryl, OH, CO.sub.2 H, aminocarbonyl, lower alkyl, lower alkoxy and lower alkoxycarbonyl, T.sup.2 is H, CO.sub.2 H, lower alkyl, lower alkoxy, monocyclic aryl, benzyl, aminocarbonyl and lower alkoxycarbonyl, the diazo component carrying a cellulose-reactive group. Also included are dyes in which two moles of such a monoazo dye are linked through a diamine radical. Cr and Co complexes of dyes in which the diazo component is a o-aminophenol or o-aminonaphthol are included. These dyes are usefully employed to color cellulose, wool or polyamide textile materials. These dyes impart to the textile materials deep shades having excellent fastness to light and to the wet treatments which are commonly applied to cellulose textile materials.