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:
Aug. 10, 2010
Filed:
Mar. 16, 2005
Michael Schinabeck, Garching, DE;
Stefan Friedrich, Garching, DE;
Uwe Holland, Wehringen, DE;
Peter Gâberlein, Augsburg, DE;
Manfred Schuhbeck, Trostberg, DE;
Michael Schinabeck, Garching, DE;
Stefan Friedrich, Garching, DE;
Uwe Holland, Wehringen, DE;
Peter Gâberlein, Augsburg, DE;
Manfred Schuhbeck, Trostberg, DE;
Construction Research & Technology GmbH, Trostberg, DE;
Abstract
A polymeric composition consisting of water-soluble or water-swellable copolymers containing sulfo groups and nonionic polysaccharide derivatives, such as methylcellulose (MC), hydroxyethylcellulose (HEC), hydroxypropylcellulose (HPC), methylhydroxyethylcellulose (MHEC), methylhydroxypropylcellulose (MHPC) and welan gum or diutan gum, and the use thereof as an additive in aqueous construction systems based on hydraulic binders, such as cement, lime, gypsum or anhydrite, is described. The composition can also be used in water-based paint and coating systems. The composition according to the invention exhibits a synergistic improvement of the properties and, when used in relatively small amounts, constitutes highly effective water retention agents in such construction and paint systems, which also achieve outstanding air pore stability and tack.