| 发明名称 |
Amine-based, hexavalent chromium reducing agents for cement |
| 摘要 |
Methods and compositions involving hexavalent chromate-reducing agents, particularly hydroxylamine, hydrazine, or their salts or derivatives, for use in cement compositions and cement processing.
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| 申请公布号 |
US6872247(B1) |
申请公布日期 |
2005.03.29 |
| 申请号 |
US20030680030 |
申请日期 |
2003.10.07 |
| 申请人 |
W. R. GRACE & CO.-CONN. |
发明人 |
JARDINE LESLIE A.;CORNMAN CHARLES A.;JACHIMOWICZ FELEK |
| 分类号 |
C04B24/12;C04B28/02;(IPC1-7):C04B7/00;C04B7/52;C04B40/00 |
主分类号 |
C04B24/12 |
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