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:
Oct. 26, 1976
Filed:
Aug. 15, 1969
Klaus Gerlach, Cologne-Flittard, DT;
Horst Jager, Cologne-Buccheim, DT;
Georg Dehmel, Cologne-Buccheim, DT;
Bayer Aktiengesellschaft, Leverkusen, DT;
Abstract
The invention relates to valuable new reactive dyestuffs of the general formula ##SPC1## In which A stands for hydrogen, a methyl, phenyl, lower carbalkoxy, optionally substituted carboxamide or a carboxy group; B denotes a carboxy, lower carbalkoxy, optionally substituted carboxamide or nitrile group; Z means a hydroxy or amino group; R.sub.1 and R.sub.2 stand for identical or different radicals such as hydrogen or methyl; D denotes the radical of a diazo component containing a reactive group; and n means the number 0 or 1; which are suitable for the dyeing and printing of materials containing hydroxyl or amide groups and for dyeing natural or regenerated cellulose fast to washing.