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:
May. 16, 2017
Filed:
Aug. 12, 2013
Applicant:
Construction Research & Technology, Gmbh, Trostberg, DE;
Inventors:
Luc Nicoleau, Altenmarkt, DE;
Hubert Leitner, Haus/Ennstal, DE;
Assignee:
Construction Research & Technology GmbH, Trostberg, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 24/18 (2006.01); C04B 24/26 (2006.01); C04B 22/00 (2006.01); C04B 40/00 (2006.01); C04B 22/06 (2006.01); C04B 24/22 (2006.01); C04B 103/14 (2006.01);
U.S. Cl.
CPC ...
C04B 24/2694 (2013.01); C04B 22/0086 (2013.01); C04B 22/064 (2013.01); C04B 24/18 (2013.01); C04B 24/226 (2013.01); C04B 40/0039 (2013.01); C04B 2103/14 (2013.01);
Abstract
The invention concerns a process for the for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound, the reaction being carried out in the presence of an aqueous solution which contains a plasticizer suitable for hydraulic binders, characterized in that said reaction is being carried out in the presence of apatite and that the molar ratio of calcium to phosphor in the hardening accelerator is from 25/1 to 400/1.