ARTICLE WITH SILICA COATING FORMED AND PROCESS FOR

专利名称：ARTICLE WITH SILICA COATING FORMED

AND PROCESS FOR PRODUCING THE SAME

发明人：SASAKI, T.,INOGUCHI, K.,KAMITANI, K.申请号：EP05728015申请日：20050331公开号：EP1731301A4公开日：20080820

摘要：The present invention provides an article with a silica-based film, wherein thefilm does not separate from a substrate after the Taber abrasion test prescribed inJapanese Industrial Standards (JIS) R 3212 although the thickness of the film formed by asol-gel process exceeds 300 nm. This film can be formed by an improved sol-gel process,that is, a sol-gel process by using a coating solution wherein silicon alkoxide has aconcentration of more than 3 mass% and less than 9 mass% in terms of a SiO

concentration, the molality of protons is 0.001 to 0.2 mol/kg, and the number of moles ofthe water is at least four times and at most ten times the total number of moles of thesilicon atoms, and by heating a substrate at the temperature above 100°C.

申请人：NIPPON SHEET GLASS COMPANY, LIMITED

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