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. 22, 1977
Filed:
Mar. 19, 1975
Eberhard Mundlos, Heusenstamm, DT;
Reinhard Mohr, Offenbach, Main, DT;
Luis Herz, Offenbach, Main, DT;
Hoechst Aktiengesellschaft, Frankfurt am Main, DT;
Abstract
New valuable basic oxazine dyestuffs of the formula ##STR1## in which R is hydrogen or lower alkyl, R.sub.1 is hydrogen or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, R.sub.2 and R.sub.3 each is hydrogen or lower alkyl or lower alkyl substituted by halogen, lower alkoxy, cyano or hydroxy, or R.sub.1 and R.sub.2 form together with the nitrogen atom the pyrrolidino, piperazino, piperidino or morpholino ring, and the phenyl nucleus a is substituted by lower alkyl, lower alkoxy, acetyl, cyano, halogen, phenoxy or trifluoromethyl, and X.sup.(.sup.-) is an anion has been found which are well suitable for the dyeing or printing of tanned cellulose fibers, silk, leather, or acetate rayon, synthetic polyamide fibers or acid-modified polyester and polyamide fibers and fibers containing polyacrylonitrile or polyvinylidene cyanide. The dyeings and prints obtained are bright and color-intensive and have good fastnesses to light and to wet processing.