Patent ID: 8329376

Claim:
A heat curable silicon-containing film-forming composition comprising (A) a silicon-containing compound comprising a compound obtained by effecting hydrolytic condensation of a hydrolyzable silicon compound having the following general formula (3): R 1 m1 Si(OR) (4-m1) (3) wherein R is an alkyl group of 1 to 3 carbon atoms, R 1 is selected from the group consisting of methyl group, ethyl group, phenyl group and groups having the following formulae: wherein (Si) indicates the bonding site to silicon, and m1 is 0 or 1, in the presence of an acid catalyst which is selected from mineral acids and sulfonic acid derivatives to form a reaction mixture containing the silicon-containing compound, and substantially removing the acid catalyst from the reaction mixture, (B) a thermal crosslink accelerator which is a compound having the general formula (Q-1): wherein R 204 , R 205 and R 206 are each phenyl group, and A − is a nucleophilic counter ion selected from the group consisting of hydroxyl, formate, acetate, propionate, butanoate, pentanoate, hexanoate, heptanoate, octanoate, nonanoate, decanoate, oleate, stearate, linoleate, linolenate, benzoate, phthalate, isophthalate, terephthalate, salicylate, trifluoroacetate, monochloroacetate, dichloroacetate, trichloroacetate, oxalate, malonate, methylmalonate, ethylmalonate, propylmalonate, butylmalonate, dimethylmalonate, diethylmalonate, succinate, methylsuccinate, glutarate, adipate, itaconate, maleate, fumarate, citraconate, citrate, and carbonate ions, (C) an organic acid selected from the group consisting of oxalic acid, maleic acid, formic acid, acetic acid, propionic acid, and citric acid, and (D) an organic solvent selected from the group consisting of monoalkyl ethers of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol and dipropylene glycol.