| abstract |
(57) [Summary] [Problem] It is possible to apply to a substrate in one step, and the obtained coating film has a matte surface, is excellent in stain resistance and whitening resistance, and further absorbs water on the substrate. Provided is a water-based matte coating composition which can also provide an anti-glazing property. SOLUTION: A copolymer having an alkoxysilyl group, a general formula: RnSi (R ') 4-n (where n is an integer of 1 or 2, R is a stable hydrophobic group, and R' is A hydrolysable silane compound comprising a compound represented by the formula (1) and / or an oligomer of the compound; and a matte coating material composition as an aqueous dispersion of powdery silica fine particles. |