Sumitomo Chemical Company, Limited

Michiru Uehara

Tomohiro Ito

Tomonori Miyamoto

Yasuharu Shimazaki

Although a composition for formation of a coating film is sometimes required to have satisfactory storage stability, it could not be said that a conventionally known composition has sufficient storage stability. It is an object of the present invention to provide a composition comprising an organosilicon compound which is excellent in storage stability. The present invention provides a composition comprising an organosilicon compound (A) represented by the following formula (a1), a metal compound (B) represented by the following formula (b1), a carboxylic acid compound (C), and an acid catalyst. 

Composition

A mixed composition comprising an organosilicon compound represented by the following formula (a1), a solvent, water, and a carboxylic acid compound, wherein a mass ratio of the water to the organosilicon compound is 30.0 or more. In the following formula (a1), a plurality of Aeach independently represent a hydrolyzable group, Zrepresents a hydrocarbon chain-containing group, x is 0 or 1. Rrepresents an alkyl group having 6 to 20 carbon atoms in which a part of methylene groups may be replaced with an oxygen atom and one or more hydrogen atoms may be replaced with a fluorine atom, and Zand Rmay be the same or different. 

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Osaka, Japan

Michiru Uehara