| 摘要 |
PROBLEM TO BE SOLVED: To provide additional treated metal oxide particles, especially particles that are useful for modifying the charge of toner particles, and additional methods of treating hydrophobic metal oxide particles, especially methods that can be used to prepare hydrophobic metal oxide particles directly from an aqueous dispersion.SOLUTION: The present invention relates to a particle composition comprising metal oxide particles surface-treated with at least one alkoxysilane compound. The metal oxide particles are hydrophobic and not primary-aggregated, and have a tap density of about 110 g/L to about 420 g/L, and a BET surface area of about 200 m/g or less. |
