申请人:Nissan Chemical Industries, Ltd.
公开号:EP3290488A1
公开(公告)日:2018-03-07
There are provided a coating composition being possible to form a cured film which has excellent transparency and weather resistance, and especially hardness. A coating composition obtained by which a silicon-containing substance as a component (M) and a silica colloidal particle having a primary particle diameter of 2 to 80 nm as a component (S) are mixed, and then the component (M) is hydrolyzed, and the resulting aqueous solution is subsequently mixed with a colloidal particle (C) wherein a component (F) is a modified metal oxide colloidal particle (C) having a primary particle diameter of 2 to 100 nm, which includes a metal oxide colloidal particle (A) having a primary particle diameter of 2 to 60 nm as a core, whose surface is coated with a coating (B) formed of an acidic oxide colloidal particle.
本发明提供了一种涂料组合物,它可以形成具有优异透明度和耐候性,尤其是硬度的固化膜。一种涂料组合物的制备方法是:将含硅物质作为组分(M)与二氧化硅胶体粒子(S)混合,二氧化硅胶体粒子的主颗粒直径为 2 至 80 纳米,然后将组分(M)水解、然后将得到的水溶液与胶体粒子(C)混合,其中组分(F)是主颗粒直径为 2 至 100 nm 的改性金属氧化物胶体粒子(C),它包括主颗粒直径为 2 至 60 nm 的金属氧化物胶体粒子(A)作为核心,其表面涂有由酸性氧化物胶体粒子形成的涂层(B)。