| 发明名称 |
Layered cementitous composition which time releases permanganate ion |
| 摘要 |
A layered composition which includes a hardened core comprising at least about 50 weight percent permanganate which composition releases permanganate ion into an aqueous media over time is described. A method of making and using the composition of the invention also are described.
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| 申请公布号 |
US5261924(A) |
申请公布日期 |
1993.11.16 |
| 申请号 |
US19910772430 |
申请日期 |
1991.10.07 |
| 申请人 |
CARUS CORPORATION |
发明人 |
REIDIES, ARNO H.;ROGERS, EDWARD S.;SCOTT, KENNETH C. |
| 分类号 |
C02F1/68;C02F1/72;C04B9/00;C04B28/00;C11D11/00;D06L3/02;(IPC1-7):D06L3/00 |
主分类号 |
C02F1/68 |
| 代理机构 |
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