Method for producing a transparent organic / inorganic hybrid membranes

摘要

PURPOSE: To provide the subject composition comprising the solution of a specific polysilazane and an acrylic resin and giving coating films excellent in heat resistance, hardness, adhesivity, flexibility, transparency, film thickness limit, and price. ;CONSTITUTION: This composition comprises the solution of (A) a polysilazane having a main skeleton comprising the units of the formula (R¹-R³ are H, alkyl, alkenyl, etc.; but at least one of R¹-R³ is H) and having a number-average mol. wt. of 100-50000 (preferably a perhydropolysilazane wherein all or almost all of R¹-R³ are H). The composition is preferably prepared by dissolving the components A and B in a solvent stably dissolving both the components A and B, respectively, and subsequently mixing both the prepared solutions with each other. When prominence is given to the flexibility, the component A is preferably compounded in an amount of 3-30wt.% per 100wt.% of the whole solid contents, and when prominence is also given to the hardness, etc., the component A is preferably compounded in an amount of 30-97wt.% per 100wt.% of the whole solid contents.;COPYRIGHT: (C)1995,JPO