Patent ID: 7767721
Filing Date: 2010-08-03
Classification: C01G,C01P,Y10S

Abstract:
1. A method for producing a dispersion of cuprous oxide ultrafine particles which comprises a first step of synthesizing cuprous oxide ultrafine particles having an average primary particle diameter of not more than 100 nm in a first solvent and simultaneously therewith obtaining a soft agglomerate of cuprous oxide ultrafine particles having a secondary particle diameter of not less than 0.2 μm, a second step of separating the soft agglomerate obtained at the first step from the first solvent, and a third step of redispersing the soft agglomerate separated at the second step in a second solvent to obtain a dispersion of cuprous oxide ultrafine particles, wherein the dispersion of cuprous oxide ultrafine particles obtained at the third step is in the colloidal state and the cuprous oxide ultrafine particles are suspended in the dispersion.