发明名称 |
Process for producing a magnetic fluid and composition therefor |
摘要 |
The invention relates to a composition and a process for producing a chemically stable magnetic fluid comprising finely divided magnetic particles covered with surfactants. A surface modifier is also employed which is added to cover thoroughly the free oxidizable exterior surface of the outer layer of the particles to assure better chemical stability of the colloid under different environmental conditions.
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申请公布号 |
US6056889(A) |
申请公布日期 |
2000.05.02 |
申请号 |
US19970948951 |
申请日期 |
1997.10.10 |
申请人 |
FERROTEC CORPORATION |
发明人 |
TSUDA, SHIRO;HECKMAN, KACEY WILEY;HIROTA, YASUTAKE;BORDUZ, STEFAN;BORDUZ, LUCIAN |
分类号 |
H01F1/34;H01F1/44;(IPC1-7):H01F1/44 |
主分类号 |
H01F1/34 |
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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