| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic fluid, especially a dispersion medium, which is suitable for a sealant for high vacuum and especially stands up to use in a high temperature. <P>SOLUTION: The magnetic fluid which is composed of magnetic particulates (P), a dispersant (V), and an ionic liquid (I), where the dispersant (V) is an anionic polymer dispersant having an aromatic ring and a sulfonic acid group as a principal chain or a side chain, is used. <P>COPYRIGHT: (C)2009,JPO&INPIT |
