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. 02, 2014
Filed:
Nov. 30, 2005
Applicants:
Susanne Bellmann, Ratingen, DE;
Norbert Steiner, Alzenau, DE;
Joerg Issberner, Willich, DE;
Christian Boekelo, Krefeld, DE;
Inventors:
Susanne Bellmann, Ratingen, DE;
Norbert Steiner, Alzenau, DE;
Joerg Issberner, Willich, DE;
Christian Boekelo, Krefeld, DE;
Assignee:
Hercules Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08F 2/16 (2006.01); C08F 2/20 (2006.01); C08F 6/00 (2006.01); C08F 220/56 (2006.01); D21H 17/37 (2006.01); D21H 17/45 (2006.01); D21H 21/10 (2006.01);
U.S. Cl.
CPC ...
D21H 17/455 (2013.01); C08F 2/20 (2013.01); C08F 6/006 (2013.01); C08F 220/56 (2013.01); D21H 17/375 (2013.01); D21H 21/10 (2013.01);
Abstract
The invention relates to water-in-water polymer dispersions containing a polymer A with a cationic monomer fraction of up to 60 wt. % and at least one polymer dispersant B, based on cationised dialkylaminoalkyl (meth)acrylamides with an average molecular weight of between 75,000 and 350,000 g/mol. The invention also relates to a method for producing said dispersions and to the use of the latter.