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:
Mar. 17, 1981
Filed:
Feb. 16, 1979
Applicant:
Inventors:
Hermann Goebel, Leverkusen, DE;
Kurt Eitel, Leverkusen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
260149 ;
Abstract
Iron complexes of azo dyestuffs of the formula ##STR1## wherein R.sub.1 and R.sub.2 have the meaning indicated in the description, and their use for dyeing or printing various fibre materials, for example wool, silk and synthetic materials such as Perlon, but especially leather. The dyeings obtained are distinguished by good fastness properties.