| 发明名称 |
DISPERSION OF MAGNETIC PARTICLES |
| 摘要 |
A dispersion of finely divided particles of a magnetic material in an organic liquid containing a dispersant comprising an amine carrying a poly(carbonylalkyleneoxy) chain (PCAO chain) in which the alkylene groups contain up to 8 carbon atoms, or an acid-salt thereof. The dispersion is useful for the preparation of magnetic recording media such as video, audio and computer recording tapes and discs. Certain of the dispersants are novel, especially a polyethyleneimine carrying at least two PCAO chains. |
| 申请公布号 |
DE3563663(D1) |
申请公布日期 |
1988.08.11 |
| 申请号 |
DE19853563663 |
申请日期 |
1985.01.04 |
| 申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
CAMPBELL, FREDERICK;DAVIES, PETER KINGSLEY;SCHOFIELD, JOHN DAVID |
| 分类号 |
B01F17/34;B01F17/00;B01F17/16;B01F17/42;B01F17/52;B01J13/00;C01G37/027;C01G49/00;C08G63/00;C08G63/08;C08G63/682;C08G63/685;C08G63/78;C08G63/91;C08K3/22;C08L67/00;C08L67/04;C08L79/00;C08L79/02;C09C3/08;C09D5/23;C09D201/00;G11B5/70;G11B5/702;H01F1/10;(IPC1-7):G11B5/702 |
主分类号 |
B01F17/34 |
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