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:
Sep. 14, 2010
Filed:
Jul. 13, 2007
Francois Martin, St Foy d'Aigrefeuille, FR;
Jocelyne Ferret, Toulouse, FR;
Cederic Lebre, Toulouse, FR;
Sabine Petit, Bonneuil Matours, FR;
Olivier Grauby, Auriol, FR;
Jean-pierre Bonino, Pechabou, FR;
Didier Arseguel, Deyme, FR;
Alain Decarreau, Poitier, FR;
Eric Ferrage, Toulouse, FR;
Francois Martin, St Foy d'Aigrefeuille, FR;
Jocelyne Ferret, Toulouse, FR;
Cederic Lebre, Toulouse, FR;
Sabine Petit, Bonneuil Matours, FR;
Olivier Grauby, Auriol, FR;
Jean-Pierre Bonino, Pechabou, FR;
Didier Arseguel, Deyme, FR;
Alain Decarreau, Poitier, FR;
Eric Ferrage, Toulouse, FR;
Luzenac Europe SAS, Toulouse, FR;
Centre National de la Recherche Scientifique (C.N.R.S), Paris, FR;
Abstract
A method for preparing a composition including mineral particles, that is swelling TOT-TOT interlayer particles, formed by interlayering between: at least one non-swelling mineral phase formed by a stack of elementary laminae of the phyllogermanosilicate 2/1 type and of formula —(SiGe)MO(OH)—, and at least one swelling mineral phase formed by a stack of elementary laminae of the phyllogermanosilicate 2/1 type and at least one interlaminar space between two consecutive elementary laminae, the swelling mineral phase being of formula —(SiGe)MO(OH), (M)ε'.nHO. The composition is prepared by subjecting a gel containing silicon, germanium and metal, of chemical formula —(SiGe)MO,nHO—, in the liquid state to a hydrothermal treatment which is carried out over a defined period of time and at a temperature of between 150° C. and 300° C., the time and temperature being selected according to the desired structural characteristics for the swelling TOT-TOT interlayer particles to be prepared.