Silicone oil-treated fumed silica, manufacturing method and application thereof

    公开(公告)号:US11254821B2

    公开(公告)日:2022-02-22

    申请号:US16495191

    申请日:2018-03-27

    摘要: A silicone oil-treated fumed silica and a method of producing the silicone oil-treated fumed silica are provided. The silicone oil-treated fumed silica, which has the following physical properties: A) the silicone oil-treated fumed silica has a degree of hydrophobicity of 68 vol % or more; B) the silicone oil-treated fumed silica has a silicone oil fixation rate of from 60 mass % to 95 mass %; and C) a composition obtained by adding 6 parts by mass of the silicone oil-treated fumed silica to 100 parts by mass of an amine composition containing trimethylolpropane polyoxypropylene triamine and 1,3-bis(aminomethyl)cyclohexane at a mass ratio of 95:5 has a viscosity of 4,000 mPa·s or more after the composition is left to stand at 25° C. for 1 hour.