| 摘要 |
PURPOSE: To improve durability by applying a hydrophilization treating agent for glass obtained by compounding metal oxide into a curable silicone resin soln. on the surface of a glass substrate, then baking and curing it at a specified temp.. CONSTITUTION: Water and an acidic catalyst are added to a tetraalkoxysilane expressed by the formula Si(OR<1> )4 and/or a trialkoxysilane expressed by the formula R<2> Si(OR<1> )3 [R<1> is a 1-4C alkyl, R<2> is a 1-24C univalent hydrocarbon] and this mixture is subjected to condensation reaction at about 20-200 deg.C, and the curable silicone resin soln. having an average mol.wt. of about 2000-200,000 and containing >=2 groups of one or more kinds of silanol group and carboxyl group is prepared. Then, the hydrophilization treating agent for glass prepared by adding and mixing about 3-300 pts.wt. metal oxide being one or more kinds among SiO2 , TiO2 , ZnO, Sb2 O3 and having about <=0.1μm grain size and solvent, filler or the like to 100 pts.wt. resin soln. (as a solid content) is applied on a glass substrate and baked and cured at 530-700 deg.C, thus the hydrophilized glass substrate is obtained.
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