发明名称 |
A quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment. |
摘要 |
<p>There is disclosed the use of a quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment particles in the preparation of magnetic recording media. The dispersant of the present invention can bind to the pigment particles and may be substituted for conventional phosphate ester dispersants which are incapable of binding to the pigment and tend to migrate to the surface of such media, thereby adversely affecting recording media performance.</p> |
申请公布号 |
EP0334602(A2) |
申请公布日期 |
1989.09.27 |
申请号 |
EP19890302791 |
申请日期 |
1989.03.21 |
申请人 |
DOW CORNING CORPORATION |
发明人 |
VINCENT, GARY ALLEN;VINCENT, HAROLD LEWIS;SYLVESTER, JUDITH MERVANE |
分类号 |
G11B5/70;C09D5/23;G11B5/708;G11B5/712;G11B5/842 |
主分类号 |
G11B5/70 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|