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:
Apr. 06, 2004
Filed:
Apr. 02, 1998
Applicant:
Inventors:
Holger Lütjens, Köln, DE;
Axel Ingendoh, Odenthal, DE;
Karl-Rudolf Gassen, Ratingen, DE;
Peter Wenzl, Köln, DE;
Klaus Rall, Köln, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/28 ;
U.S. Cl.
CPC ...
C08F 8/28 ;
Abstract
Reacting weakly basic anion exchangers bearing tertiary amino groups with ethylene oxide under pH control and addition of acid leads to superior strongly basic anion exchangers.