| 摘要 |
PURPOSE:To improve adhesion between the upper and lower resin layers by coating siloxane resin with the resin of silanol or titanol system, curing the same, and thus making SiO2 or TiO2 present intermediately. CONSTITUTION:A ladder-type organosiloxane has reactive radicals such as OH, OCH and OC2H5 at the end thereof, and these radicals at the end are cured through condensation reaction. Meanwhile, a silanol compound containing hydrogen, methyl, ethyl or the mixture thereof or a titanol compound containing hydrogen, methyl, ethyl, propyl, butyl or the mixture thereof is also hardened through condensation reaction and finally changed into SiO2 or TiO2, and therefore, is bonded very well to an upper inorganic layer. It is necessary to apply and cure silanol or titanol compound until the ladder-type polyorganosiloxane film is completely cured, and when the molecular weight of the former is 10<4> or less, the treatment for 30min at 150 deg.C- 60min, 450 deg.C is performed, while it is performed for 30min at 200 deg.C-60min, 450 deg.C when the weight is 10<4> or more. As for the latter, the treatment for 30min at 100- 200 deg.C and later the treatment for 30min or more at 300-450 deg.C are performed. |
