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:
Apr. 23, 2013
Filed:
Aug. 02, 2012
Alain Jacquet, Saint Didier de Formans, FR;
Emmanuel Villard, Saint-Christo-en-Jarez, FR;
Olivier Watt, Saint Jean de Soudain, FR;
Alain Jacquet, Saint Didier de Formans, FR;
Emmanuel Villard, Saint-Christo-en-Jarez, FR;
Olivier Watt, Saint Jean de Soudain, FR;
LaFarge, , FR;
Abstract
In one embodiment, the present invention includes a method for preparing a hydraulic composition including sand in which clay is present, the method including adding to the sand and clay a cationic polymer having a density of cationic charges which is greater than 0.5 meq/g and an intrinsic viscosity which is less than 1 dl/g, said cationic polymer being present in an amount of from 2-20% by weight based on the amount of clay present, said clay present in an amount of from 0.5-5% by weight of the sand present, and water.