| abstract |
The invention relates to a method of forming on a glass substrate a multilayerednwater-repellent film having a first metal oxide layer and a secondnwater-repellent layer, comprising the followings steps: (a) forming the firstnmetal oxide layer on the glass substrate such that the first metal oxidenlayer has a minutely rough surface having on the surface micro-pitsnand/or micro-projections; (b) preparing a coating mixture comprisingn0.10-20 wt% of a fluoroalkylsilane, 0.10-2 wt% of tin oxide particles dopednwith antimony oxide, 0.10-2 wt% of a silicon compound, water and an organicnsolvent; (c) applying the coating mixture to the first metal oxide layernso as to form the second layer on the first layer; and (d) heating the secondnlayer at a temperature ranging from 100 to 300°C. |