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:
Jun. 02, 2015
Filed:
Aug. 12, 2010
Luc Nicoleau, Altenmarkt an der Alz, DE;
Gerhard Albrecht, Prien am Chiemsee, DE;
Klaus Lorenz, Zangberg, DE;
Eva Jetzlsperger, Garching, DE;
Daniel Fridrich, Neuötting, DE;
Thomas Wohlhaupter, Eggstaett, DE;
Reinhard Dorfner, Kirchweidach, DE;
Hubert Leitner, Traunwalchen, DE;
Mario Vierle, Wasserburg, DE;
Dirk Schmitt, Leimen St. Ilgen, DE;
Michael Braeu, Traunstein, DE;
Christoph Hesse, Ebersberg, DE;
Sabrina Montero Pancera, Viernheim, DE;
Siegfried Zuern, Eurasburg, DE;
Michael Kutschera, Neustadt, DE;
Luc Nicoleau, Altenmarkt an der Alz, DE;
Gerhard Albrecht, Prien am Chiemsee, DE;
Klaus Lorenz, Zangberg, DE;
Eva Jetzlsperger, Garching, DE;
Daniel Fridrich, Neuötting, DE;
Thomas Wohlhaupter, Eggstaett, DE;
Reinhard Dorfner, Kirchweidach, DE;
Hubert Leitner, Traunwalchen, DE;
Mario Vierle, Wasserburg, DE;
Dirk Schmitt, Leimen St. Ilgen, DE;
Michael Braeu, Traunstein, DE;
Christoph Hesse, Ebersberg, DE;
Sabrina Montero Pancera, Viernheim, DE;
Siegfried Zuern, Eurasburg, DE;
Michael Kutschera, Neustadt, DE;
Construction Research & Technology GmbH, Trostberg, DE;
Abstract
The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound and by reaction of a calcium compound with a silicon dioxide containing component under alkaline conditions, in both cases the reaction being carried out in the presence of a polycondensate containing at least one structural unit consisting of an aromatic or heteroaromatic moiety bearing a polyether side chain and at least one structural unit consisting of an aromatic or heteroaromatic moiety bearing at least one phosphoric acid ester group and/or its salt. The invention concerns a composition of calcium silicate hydrate and the polycondensate, its use as hardening accelerator and for the reduction of the permeability of hardened compositions.