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:
Nov. 15, 1983
Filed:
Mar. 19, 1981
Ulrich Buhler, Schoneck, DE;
Rudolf Lowenfeld, Dreieich, DE;
Uwe Kosubek, Buttelborn, DE;
Maria Kallay, Konigstein, DE;
Cassella Aktiengesellschaft, Frankfurt, DE;
Abstract
Monoazodyestuffs free from water solubilizing moieties and which are useful in dyeing and printing polyester materials, mixtures of polyesters with natural materials or cellulose triacetate materials have the formula ##STR1## wherein X.sup.1 is nitro, cyano or methylsulphonyl and R.sup.1 is of the formula ##STR2## wherein Y.sup.1 is hydrogen, methyl or ethyl; Y.sup.2 is hydrogen, hydroxyl, alkanoyloxy having 1 to 4 carbon atoms in the alkanoyl moiety, or alkoxycarbonyloxy having 1 to 4 carbon atoms in the alkyl moiety, and said alkanoyloxy and said alkoxycarbonyloxy are each unsubstituted or substituted by alkoxy having 1 to 4 carbon atoms or phenoxy;