| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a novel polyamide fine particle which is suitable for cosmetics and optical electronic parts and has strong light scattering properties to side-way scattering and back scattering and its production method.SOLUTION: A polyamide fine particle which has a plurality of protrusions extending radially from the central part of the fine particle and is dendritic or confetti-like is obtained by mixing a solution of a polyamide in a solvent (polyamide solution), a nonsolvent of a polyamide, water and a fine particle of a metal oxide together to form a temporarily uniform solution and then allowing the polyamide to precipitate so as to obtain the particle.</p> |
