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. 09, 2014
Filed:
Nov. 29, 2011
Michael Schinabeck, Altenmarkt, DE;
Frank Dierschke, Oppenheim, DE;
Manfred Bichler, Engelsberg, DE;
Silke Flakus-taube, Ebersberg, DE;
Stefan Friedrich, Garching, DE;
Michael Schinabeck, Altenmarkt, DE;
Frank Dierschke, Oppenheim, DE;
Manfred Bichler, Engelsberg, DE;
Silke Flakus-Taube, Ebersberg, DE;
Stefan Friedrich, Garching, DE;
BASF Construction Solutions GmbH, Trostberg, DE;
Abstract
Claimed is a cationic copolymer and also its use as an admixture agent for building product systems, especially based on calcium sulfate. The copolymers of the invention effectuate accelerated setting behavior in clay-containing as well as non-clay-containing gypsums and they enable uncurtailed water reduction performance by dispersant agents used at the same time with the copolymers. The clay fractions in the gypsum system are masked by the cationic copolymer, and so the building product mixture exhibits properties of a building product mixture not containing clay. The copolymers are used as a formulation and also together with retarders.