Patent ID: 7909929

Claim:
A dispersoid having metal-oxygen bonds obtained by: mixing a metal compound having at least three hydrolyzable groups with a given amount of water in the absence of all members selected from the group consisting of an acid, a base, and a dispersion stabilizer and at a given temperature, wherein: the given amount of water is at least 1.0 mole but less than 2.0 moles per mole of the metal compound, and no acid, no base, and no dispersion stabilizer is added to the dispersoid, the given temperature is a temperature below 0° C., and a transmittance, expressed as a spectral transmittance measured at a dispersoid concentration of 0.5 wt % of oxide basis, at a quartz cell light path length of 1 cm, using the organic solvent as a control, and at a light wavelength of 550 nm, is 80% to 100%.