| 发明名称 |
Process of inerting clay in sands, useful for the preparation of mortar and concrete, comprises contacting sand with a polymeric product by condensation of dicyandiamide with formol, optionally in the presence of other compounds |
| 摘要 |
<p>Process of inerting clay in sands for the preparation of hydraulic compositions, comprises: contacting the sand with a polymeric product (I) by condensation of dicyandiamide with formol, optionally in the presence of other compounds.</p> |
| 申请公布号 |
FR2875496(A1) |
申请公布日期 |
2006.03.24 |
| 申请号 |
FR20040009968 |
申请日期 |
2004.09.21 |
| 申请人 |
LAFARGE SOCIETE ANONYME |
发明人 |
WATT OLIVIER;GEORGES SEBASTIEN;JACQUET ALAIN;BROCAS STEPHANE;LEVY CHRISTOPHE |
| 分类号 |
C04B24/12;C04B14/10;C04B24/10;C04B24/32;C04B28/02;C04B103/30 |
主分类号 |
C04B24/12 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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