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. 29, 1994
Filed:
Apr. 28, 1992
Applicant:
Inventors:
Ludger Heiliger, Leverkusen, DE;
Hans-Ulrich Siegmund, Krefeld, DE;
Herbert Hugl, Bergisch Gladbach, DE;
Antonius Lobberding, Wuppertal, DE;
Eberhard Kuckert, Leverkusen, DE;
Bruno Bomer, Bergisch-Gladbach, DE;
Thomas Bocker, Dusseldorf, DE;
Gunther Franke, Leichlingen, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ; C08F / ; C08F / ;
U.S. Cl.
CPC ...
526286 ; 526305 ; 526326 ; 5263171 ; 5263184 ; 5263073 ; 5263077 ; 526347 ; 5262927 ; 526320 ; 526310 ; 526273 ;
Abstract
The present invention relates to polymer dyestuffs, i.e. polymer-bound dyestuffs, to a process for their preparation and to their use, for example as markers in analytical procedures. Polymer dyestuffs contain linkable functional groups and are water-soluble under customary conditions of analysis. The polymer portion is usually responsible for this water solubility. The dyestuffs per se are often water-insoluble.