| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide silica particles that are prevented from moving to a concave portion in a surface of an adhesion object. <P>SOLUTION: The silica particles comprise: first silica particles; and second silica particles that adhere to the surface of the first silica particles and has an average circularity of 0.7 to 0.85, wherein the grain size of the second silica particles is smaller than that of the first silica particles. <P>COPYRIGHT: (C)2013,JPO&INPIT |
