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:
Aug. 23, 2011
Filed:
Apr. 23, 2007
Andreas Altherr, Spiesen-Elversberg, DE;
Klaus Endres, Homburg, DE;
Bernd Reinhard, Merzig-Brotdorf, DE;
Helmut Schmidt, Saarbruecken-Guedingen, DE;
Andreas Altherr, Spiesen-Elversberg, DE;
Klaus Endres, Homburg, DE;
Bernd Reinhard, Merzig-Brotdorf, DE;
Helmut Schmidt, Saarbruecken-Guedingen, DE;
Kraiburg Geotech GmbH, Saarbruecken, DE;
Abstract
A process for the preparation of hydrolytically and hydrothermally stable consolidated proppants is described, in which (A) a consolidating agent comprising (A1) a hydrolysate or precondensate of at least one functionalized organosilane, a further hydrolyzable silane and at least one metal compound, the molar ratio of silicon compounds used to metal compounds used being in the range of 10 000:1 to 10:1, and (A2) an organic crosslinking agent are mixed with a proppant and (B) the consolidating agent is cured at elevated pressure and elevated temperature. The consolidated proppants obtained have high mechanical strength.