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Process for producing article coated with water-repellent film article coated with water-repellent film and liquid composition for water-repellent film, article coated
Process for producing article coated with water-repellent film article coated with water-repellent film and liquid composition for water-repellent film, article coated
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机译:涂布有防水膜的物品的制造方法以及涂布有防水膜的物品和用于该防水膜的液体组合物
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摘要
In a process for producing a product coated with a water repellent film which comprises applying on a base substrate a coating liquid containing a silicon alkoxide, a fluoroalkyl group-containing silane compound and an acid dissolved in a solvent and drying; the process for producing a product coated with a water repellent film being characterized in that said coating liquid contains: said silicon alkoxide or a hydrolysate thereof is present at a concentration equivalent to 0.01 to 2% by weight of silica formed by hydrolysis of the silicon alkoxide, said fluoroalkyl group-containing silane compound is present at a concentration equivalent to 0.00001 to 0.15% by weight of silica formed by hydrolysis of the fluoroalkyl group-containing silane compound, 0.003-3 normality of said acid, and 0-20% by weight of water. The invention further provides water repellent products having a good rolling properly of water drops, a high scratching resistance and a high weatherability prepared by the process of the invention.
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