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:
Feb. 13, 2001
Filed:
Feb. 16, 1999
Applicant:
Inventors:
Gerhard Albrecht, Tacherting, DE;
Christian Huber, Garching, DE;
Manfred Schuhbeck, Trostberg, DE;
Josef Weichmann, Pleiskirchen, DE;
Alfred Kern, Kirchweidach, DE;
Assignee:
SKW Bauchemie GmbH, Trostberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 2/608 ;
U.S. Cl.
CPC ...
C08F 2/608 ;
Abstract
Water-soluble or water-swellable copolymers containing sulfonic groups and based on (meth)acrylamide alkyl sulfonic acids and (meth)acrylamide or N-vinyl compounds are described, as well as their use as additives in aqueous building material mixes or for water-based painting and coating systems. The copolymers of the invention, even when used in relatively small quantities, serve as very effective and highly compatible water retention agents in such building material mixes and surface-coating systems.