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. 15, 1981
Filed:
Feb. 09, 1979
Applicant:
Inventors:
Jaroslav Haase, Basel, CH;
Peter Liechti, Arisdorf, CH;
Hans Wegmuller, Riehen, CH;
Rudolf F Wurster, Pfeffingen, CH;
Quentin Bowes, Rheinfelden, CH;
Assignee:
Ciba-Geigy Corporation, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
564197 ; 564158 ; 564160 ; 564165 ; 2604 / ; 2604654 ;
Abstract
A novel process for the purification of industrial effluents, wherein the effluents are brought into contact with cationically modified, cellulose-containing materials, the cationic constituent of which is bonded to the cellulose part via the grouping of the general formula