| 摘要 |
PURPOSE: To obtain the subject composition, containing a solution of a copolymer containing fluorine and hydroxyl groups in an organic solvent, an alkoxysilane, a lower alcohol and an acidic catalyst in a specific proportion, excellent in hardness, solvent resistance, etc., and useful as a coated film, etc., good in adhesion. CONSTITUTION: This composition comprises (A) 100 pts.wt. solution of a copolymer containing fluorine, hydroxyl groups and a fluoroolefln component, an alkyl vinyl ether and an alkyl vinyl ester as principal constituent components in an organic solvent, (B) 0.5-30 pts.wt. alkoxysilane or its partial hydrolytic condensate, (C) 50-300 pts.wt. lower alcohols except methanol and (D) an acidic catalyst comprising an organic strong acid in an amount of 0.1-2.5wt.% based on the total weight. Furthermore, a highly cross-linked coated film, having a high hardness and glossiness and good in adhesion can be formed by applying the composition onto a substrate or the composition at a changed composition ratio thereto and then thermally forcedly drying the applied composition. |
