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. 23, 2002
Filed:
Nov. 06, 1995
Applicant:
Inventors:
Marek Gorzynski, Düren, DE;
Andreas Pingel, Düren, DE;
Assignee:
Akzo Nobel NV, Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K 3/20 ; C08F 6/10 ; D21H 1/700 ;
U.S. Cl.
CPC ...
C08K 3/20 ; C08F 6/10 ; D21H 1/700 ;
Abstract
The invention comprises an aqueous solution comprising a water-soluble, polyamidoamine- epichlorohydrin resin, said solution having a reduced halogen content and effective wet strength agent properties, obtained by subjecting an aqueous solution comprising a water-soluble polyamido-amine-epichlorohydrin resin to an organic halogen content reducing after-treatment wherein the total halogen content is below 1% by weight, calculated on solid resin and the halogen content is below 0.1% by weight.