Invention Grant
- Patent Title: Method for inerting impurities
- Patent Title (中): 杂质不足的方法
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Application No.: US11575612Application Date: 2005-09-21
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Publication No.: US08257490B2Publication Date: 2012-09-04
- Inventor: Jacquet Alain , Villard Emmanuel , Watt Olivier
- Applicant: Jacquet Alain , Villard Emmanuel , Watt Olivier
- Applicant Address: FR
- Assignee: Lafarge
- Current Assignee: Lafarge
- Current Assignee Address: FR
- Agency: Lerner, David, Littenberg, Krumholz & Mentlik, LLP
- Priority: FR0409968 20040921; FR0506596 20050628
- International Application: PCT/FR2005/002342 WO 20050921
- International Announcement: WO2006/032785 WO 20060330
- Main IPC: C04B24/30
- IPC: C04B24/30 ; C04B24/26 ; C08G73/02 ; C08G12/16
Abstract:
The invention concerns a method for inerting clays in sand intended for preparing hydraulic compositions, comprising a step which consists in adding to the composition or one of its constituents a cationic polymer having a cationic charge density more than 0.5 meq/g and an intrinsic viscosity less than 1 dg/l.
Public/Granted literature
- US20070287794A1 Method for Inerting Impurities Public/Granted day:2007-12-13
Information query
