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:
Dec. 07, 1976
Filed:
Aug. 08, 1974
Applicant:
Inventors:
Guenther Boehmke, Leverkusen, DT;
Werner Theuer, Opladen-Luetzenkirchen, DT;
Konrad Nonn, Leverkusen, DT;
Georg Pape, Opladen, DT;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ;
U.S. Cl.
CPC ...
8 84 ; 8 54 ; 8 542 ; 8172 / ;
Abstract
Anionic dyestuffs which contain as the cation at least one cation of the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 denote alkyl with 1-6 C-atoms, cycloalkyl with 5-7 C-atoms or aralkyl with 7-12 C-atoms or represent a group ##STR2## wherein R.sub.4 and R.sub.5 denote hydrogen, methyl or ethyl and