Patent ID: 8221535

Claim:
A dispersion of tin-doped indium oxide fine particles, the dispersion comprising (1) tin-doped indium oxide fine particles having a primary average particle size of 0.2 μm or less, (2) a plasticizer for an interlayer film, (3) an organic solvent containing at least one alcohol as a main component, and a (4) dispersion stabilizer, wherein under measuring conditions of a content of the tin-doped indium oxide fine particles of 0.7% by weight based on the total weight of the dispersion and an optical path length of a glass cell of 1 mm, a visible light transmittance is 80% or more, a solar radiation transmittance at a wavelength within a range from 300 nm to 2100 nm is ¾ or less of the visible light transmittance, a haze value is 1.0% or less, a reflection yellow index is −20 or more, the content of the dispersion stabilizer is from 6% to 20.7% by weight based on the total weight of the dispersion, wherein the dispersion stabilizer comprises (i) a chelate at a content in a range of 3.3 to 30 parts by weight per 100 parts by weight of the tin-doped indium oxide fine particles, (ii) an organic acid at a content in a range of 6.0 to 20.3 parts by weight per 100 parts by weight of the tin-doped indium oxide fine particles, and (iii) a phosphate ester-based compound at a content in a range of 6.7 to 16.7 parts by weight per 100 parts by weight of the tin-doped indium oxide fine particles, the content of the tin-doped indium oxide fine particles is from 10% to 60% by weight based on the total weight of the dispersion, the content of the alcohol is from 4 to 13.8% by weight based on the total weight of the dispersion, and the content of the plasticizer is from 10% to 80% by weight based on the total weight of the dispersion.