Asahi Glass Company, Limited

Tadashi Hamano

Takashige Yoneda

Fumiaki Gunji

Fluorine-containing organic silicon compound, water repellent composition containing it, and surface-treated substrate and process for its production

A substrate having at least two treated surface layers, wherein the first layer constituting the outermost layer among the treated surface layers is a layer formed by covering with a composition containing a reactive silane compound (I) which forms a surface having a rolling angle of at most 30&deg; to water, and the second layer constituting an underlayer in contact with the first layer is a layer formed by covering with a composition (II) containing a fluorine-containing reactive silane compound (II) which forms a surface having a contact angle of at least 100&deg; to water.

Substrate having treated surface layers and process for producing it

A substrate having at least two treated surface layers, wherein the first layer constituting the outermost layer among the treated surface layers is a layer formed by covering with a composition (I) containing a predetermined organic silicon compound, and the second layer constituting an underlayer in contact with the first layer is a layer formed by covering with a composition (II) containing a fluorine-containing reactive silane compound (II) which forms a surface having a contact angle of at least 100&deg; to water.

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Kanagawa, Japan

Tadashi Hamano