SURFACE TREATMENT METHOD FOR METAL OXIDE PARTICLE, DISPERSION LIQUID CONTAINING THE SURFACE TREATED METAL OXIDE PARTICLE, COATING LIQUID FOR FORMING TRANSPARENT COATING FILM, AND SUBSTRATE WITH TRANSPARENT COATING FILM

摘要

PPROBLEM TO BE SOLVED: To provide an efficient surface treatment method for metal oxide particles excellent in dispersibility and dispersion stability. PSOLUTION: An organic silicon compound expressed by general formula (1) is added to hydrolyze in a dispersion liquid of metal oxide particles in water and/or an organic solvent, to which, subsequently, an organic silicon compound expressed by formula (2) is added to hydrolyze. The formulae are: (1):(NHSB2/SB-CSBn/SBHSB2n/SB-Z-CSBm/SBHSB2m/SB)SBL/SB-Si-YSB4-L/SB, wherein Z represents -NH or -CHSB2/SB, Y represents a 1-4C alkoxy group, a hydroxyl group, halogen or hydrogen, L represents an integer of 1 to 3, n represents an integer of 0 to 10 and m represents an integer of 0 to 10; and (2):RSBp/SB-SiXSB4-p/SB, wherein R represents a 1-10C substituted or unsubstituted hydrocarbon group and may be identical or different from each other, X represents a 1-4C alkoxy group, a hydroxyl group, halogen or hydrogen, and p represents an integer of 1 to 3, however, the formula excludes an amino group-substituted hydrocarbon group. PCOPYRIGHT: (C)2009,JPO&INPIT