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:
Nov. 07, 1995
Filed:
Aug. 12, 1994
Applicant:
Inventors:
Reinhold Klipper, Koln, DE;
Stefan Antons, Leverkusen, DE;
Guido Steffan, Odenthal, DE;
Alfred Mitschker, Odenthal, DE;
Werner Struver, Leverkusen, DE;
Holger Lutjens, Koln, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
521 32 ; 5253336 ; 5253591 ; 5253592 ; 5253596 ; 525375 ; 548473 ;
Abstract
An improved aminomethylation process gives weakly-basic anion exchangers in an elegant way, with by-product obtained being able to be processed into a suitable starting material without problems.