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. 05, 2022
Filed:
Jun. 27, 2016
Applicant:
Construction Research & Technology, Gmbh, Trostberg, DE;
Inventors:
Torben Gädt, Traunstein, DE;
Harald Grassl, Feichten, DE;
Luc Nicoleau, Villevaude, FR;
Alfons Smeets, Seebruck, DE;
Assignee:
Construction Research & Technology GmbH, Trostberg, DE;
Primary Examiner:
Int. Cl.
CPC ...
C04B 40/00 (2006.01); C04B 24/00 (2006.01); C04B 24/26 (2006.01); C04B 28/04 (2006.01); C08F 290/06 (2006.01); C04B 28/06 (2006.01); C04B 28/00 (2006.01); C04B 28/02 (2006.01); C04B 28/08 (2006.01); C04B 22/08 (2006.01); C04B 22/16 (2006.01); C04B 103/30 (2006.01); C04B 103/40 (2006.01); C04B 103/14 (2006.01);
U.S. Cl.
CPC ...
C04B 40/0039 (2013.01); C04B 22/08 (2013.01); C04B 22/16 (2013.01); C04B 24/00 (2013.01); C04B 24/003 (2013.01); C04B 24/2647 (2013.01); C04B 24/2694 (2013.01); C04B 28/001 (2013.01); C04B 28/02 (2013.01); C04B 28/021 (2013.01); C04B 28/026 (2013.01); C04B 28/04 (2013.01); C04B 28/06 (2013.01); C04B 28/08 (2013.01); C04B 40/00 (2013.01); C04B 40/0042 (2013.01); C08F 290/062 (2013.01); C04B 2103/14 (2013.01); C04B 2103/308 (2013.01); C04B 2103/408 (2013.01); Y02W 30/91 (2015.05);
Abstract
The present invention relates to an additive for hydraulically setting compositions comprising a colloidally disperse preparation comprising at least one salt of a polyvalent metal cation with at least one organic phosphonate and/or phosphate compound as anion and at least one polymeric dispersant comprising anionic and/or anionogenic groups and polyether side chains. The additive is especially suitable as slump retainer and for improving early strength.