| abstract |
By using siloxane resin compositions, the calcined hardened film is formed with excellent transparency, high scratch hardenss, high insulation, low dielectric constant, excellent eveness furthermore, as well as no film loss during calcination, no cracking happened even thick film, no film stripping between interface of substrates, and excellent adhesion. The substrate is coated with the resin composition of siloaxne with silanol group or alkoxysilyl group. After a prebaking process, the coated substrate is rinsed by an aqueous alkali solution process, and then is calcined to produce the calcined hardened covering film with the resin composition of siloane with silanol group or alkoxysilyl group. |