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:
Oct. 24, 2017
Filed:
Jan. 20, 2015
Applicant:
Construction Research & Technology, Gmbh, Trostberg, DE;
Inventors:
Torben Gädt, Traunstein, DE;
Harald Grassl, Feichten, DE;
Luc Nicoleau, Ludwigshafen am Rhein, DE;
Joachim Dengler, Tacherting, DE;
Martin Winklbauer, Halsbach, DE;
Assignee:
Construction Research & Technology, GmbH, Trostberg, DE;
Primary Examiner:
Int. Cl.
CPC ...
C04B 24/30 (2006.01); C04B 24/26 (2006.01); C04B 28/02 (2006.01); C04B 22/06 (2006.01); C04B 22/08 (2006.01); C04B 22/16 (2006.01); C04B 103/30 (2006.01); C04B 103/40 (2006.01);
U.S. Cl.
CPC ...
C04B 24/30 (2013.01); C04B 22/062 (2013.01); C04B 22/085 (2013.01); C04B 22/16 (2013.01); C04B 24/267 (2013.01); C04B 24/2629 (2013.01); C04B 24/2647 (2013.01); C04B 24/2658 (2013.01); C04B 24/305 (2013.01); C04B 28/02 (2013.01); C04B 2103/308 (2013.01); C04B 2103/408 (2013.01);
Abstract
The present invention relates to an additive for hydraulically setting compositions, comprising a colloidally disperse preparation of at least one salt of a mono- or polyvalent metal cation and of at least one compound which is able to release an anion which forms a low-solubility salt with the metal cation, and of at least one polymeric sulphonated dispersant. The additive is suitable particularly as a slump retainer.