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. 11, 1997
Filed:
Apr. 07, 1995
Applicant:
Inventors:
Assignee:
Chemische Fabrik Stockhausen GmbH, Krefeld, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ; B01J / ;
U.S. Cl.
CPC ...
528310 ; 528271 ; 528272 ; 528274 ; 528312 ; 528322 ; 528346 ; 528422 ; 526301 ; 526309 ; 502400 ; 502401 ; 502402 ;
Abstract
The present invention relates to absorbents for aqueous acids or lyes comprising cross-linked, polycationic homopolymers and topolymers of quaternized, monoethylenically unsaturated carboxylic acid amino esters and/or carboxylic acid amides of the formula