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:
Dec. 17, 2013
Filed:
Feb. 17, 2012
Applicants:
Markus Broecher, Muelheim an der Ruhr, DE;
Charlotta Kanto Oeqvist, Kempen, DE;
Nathalie Sieverling, Duisburg, DE;
Christian Boekelo, Krefeld, DE;
Inventors:
Markus Broecher, Muelheim an der Ruhr, DE;
Charlotta Kanto Oeqvist, Kempen, DE;
Nathalie Sieverling, Duisburg, DE;
Christian Boekelo, Krefeld, DE;
Assignee:
Ashland Licensing and Intellectual Property LLC, Dublin, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
C08L 33/26 (2006.01); C08F 220/56 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to water-in-water polymer dispersions containing cross-linked cationic polymers, methods for their preparation and their use. The water-in-water polymer dispersions are useful inter alia as flocculants, dewatering (drainage) aids and retention aids in papermaking.