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:
Jul. 03, 2007
Filed:
Aug. 02, 2001
Michael Schinabeck, Garching, DE;
Gerhard Albrecht, Tacherting, DE;
Alfred Kern, Kirchweidach, DE;
Manfred Schuhbeck, Trostberg, DE;
Michaela Melzer, Feichten, DE;
Michael Schinabeck, Garching, DE;
Gerhard Albrecht, Tacherting, DE;
Alfred Kern, Kirchweidach, DE;
Manfred Schuhbeck, Trostberg, DE;
Michaela Melzer, Feichten, DE;
Construction Research & Technology GmbH, Trostberg, DE;
Abstract
The invention relates to water-soluble or water-swellable copolymers which contain sulfo groups and which are based on (meth)acrylamide-alkylsulfonic acids and (meth)acrylamide or N-vinyl compounds, and to their use as additives for aqueous construction materials systems or for water-based paint and coating systems. The inventive copolymers also represent water retention agents which are highly effective, even when used in relatively small quantities, and which are highly compatible in construction material and paint systems of this type.