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:
May. 28, 1991
Filed:
Jun. 30, 1989
Applicant:
Inventors:
Manfred Marten, Mainz, DE;
Walter Kamutzki, Dieburg, DE;
Assignee:
Hoechst AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
523414 ; 523416 ; 523417 ; 523418 ;
Abstract
Aqueous solutions of polyamidoamine-epichlorohydrin resins and preparation and use thereof. A stable aqueous resin solution having a pH of not more than 7 and containing as the resin a water-thinnable polyamidoamine-epichlorohydrin resin (A) obtained by reaction of a water-thinnable basic polyamidoamine (B) comprising an acid component (B.sub.1) and an amine component (B.sub.2) with epichlorohydrin (C), the level of organically bound chlorine in the resin (A) being not more than 4% by weight. The present invention further relates to a process for preparing these products and to the use thereof in particular for increasing the wet strength of paper.