The Furukawa Electric Co., Ltd.

Takashi Unno

Yusuke Yamada

Hidemichi Fujiwara

Nobumitsu Yamanaka

Takuya Harada

Hideo Nishikubo

Kazuhiro Takashiba

In a fine particle dispersion, a fine particle (P) is dispersed in a mixed organic solvent. The fine particle (P) is formed of one type or not less than two types of a metal, an alloy, and/or a metallic compound, and has a mean particle diameter between 1 nm and 150 nm for primary particles thereof. Further, the fine particle (P) has a surface at least a part thereof coated with a polymer dispersing agent (D).

Fine particle dispersion and method for producing fine particle dispersion

A method for producing a fine particle dispersion includes the steps of reducing a metal ion to form a fine particle dispersion aqueous solution; adding an aggregation accelerator into the fine particle dispersion aqueous solution so that agglomerated or precipitated fine particles are separated to obtain fine particles; and re-dispersing the fine particles into an organic solvent containing an organic solvent having an amide group, a low boiling point organic solvent having a boiling point between 20&#xb0; C. and 100&#xb0; C. at a normal pressure, and an organic solvent having a boiling point higher than 100&#xb0; C. at a normal pressure and containing an alcohol and/or a polyhydric alcohol.

Method for producing fine particle dispersion and fine particle dispersion

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Tokyo, Japan

Takashi Unno