| abstract |
PROBLEM TO BE SOLVED: To provide a coating solution for forming a hollow silicone particle film having a low refractive index and good productivity, and a coated substrate having a low reflectance and a high transparency. SOLUTION: Hollow silicone-based particles (A) and a general formula X n Si (OX ′) 4-n (In the formula, X represents a hydrogen atom, a fluorine atom, an alkyl group having 1 to 8 carbon atoms, an aryl group, a vinyl group or a fluoroalkyl group, and X ′ represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or an aryl group. Or n is an integer of 0 to 3, and contains n = 0 and / or n = 1 alkoxysilane and / or a partial hydrolysis condensate thereof in an amount of more than 50% by weight. A coating solution for forming a hollow silicone film, comprising an alkoxysilane (B). And the base material by which a film is formed in the base-material surface with this coating liquid. [Selection figure] None |