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:
Sep. 14, 2010
Filed:
Oct. 25, 2006
Bettina Wester, Mannheim, DE;
Volker Braig, Weinheim-Luetzelsachsen, DE;
Werner Gauweiler, Lustadt, DE;
Marc Leduc, Mannheim, DE;
Stefan Becker, Mannheim, DE;
Robert Feuerhake, Mannheim, DE;
Bettina Wester, Mannheim, DE;
Volker Braig, Weinheim-Luetzelsachsen, DE;
Werner Gauweiler, Lustadt, DE;
Marc Leduc, Mannheim, DE;
Stefan Becker, Mannheim, DE;
Robert Feuerhake, Mannheim, DE;
BASF Aktiengesellschaft, Ludwigshafen, DE;
Abstract
The invention relates to aqueous dispersions of water-soluble polymers of N-vinyl-carboxamides, which are substantially salt-free and comprise anionic polymeric stabilizers having a comb-like molecular structure, processes for the preparation of the dispersions in the presence of anionic polymeric stabilizers having a comb-like molecular structure and the use of the dispersions as retention aids or fixing agents in papermaking.