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:
Jan. 06, 1976
Filed:
Oct. 19, 1973
Walter Birke, Frankfurt am Main, DT;
Rudolf Schickfluss, Frankfurt am Main, DT;
Franz Schon, Frankfurt am Main, DT;
Willi Steckelberg, Hofheim, Taunus, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
A process for the continuous dyeing of textile materials containing or consisting of synthetic fibrous materials from organic solvents, which comprises impregnating the said textile materials with an organic dyebath containing at least one dyestuff of the formula ##SPC1## In which the phenyl radical A is unsubstituted or substituted by 1 to 3 substituents of the group consisting of halogen, nitro, cyano, trifluoromethyl, lower alkyl, lower alkoxy and lower alkoxy-lower alkylene--O--, B represents naphthylene or ##SPC2## R.sub.2, r.sub.3, r.sub.4 and R.sub.5 each represent hydrogen, halogen, lower alkyl, lower alkoxy or lower alkoxy-lower alkylene--O--, and R.sub.1 stands for a linear or branched alkylcarbonyl of at most 18 carbon atoms, ##SPC3## ##SPC4## ##SPC5## ##SPC6## And an organic solvent, and fixing the dyestuffs by submitting the impregnated materials to a heat treatment.