Fluorine-containing polymer composition

A process for forming a thin film of a fluorine-containing amorphous polymer on a substrate, which comprises coating on the substrate a fluorine-containing polymer composition comprising a fluorine-containing solvent of the formula R1—O—R2 wherein R1 is a C5-12 linear or branched polyfluoroalkyl group which may have an ether bond, and R2 is a C1-5 linear or branched alkyl group, and a fluorine-containing amorphous polymer having a fluorine-containing ring structure in its main chain, dissolved in the solvent, and then drying the fluorine-containing solvent to form a thin film of the fluorine-containing amorphous polymer on the substrate, and then peeling the thin film of the fluorine-containing amorphous polymer from the substrate, wherein the polyfluoroalkyl group is a group having at least 80% of the number of hydrogen atoms of the corresponding alkyl group substituted by fluorine atoms.

A process for forming a thin film of a fluorine-containing amorphous polymer on a substrate, which comprises coating on the substrate a fluorine-containing polymer composition comprising a fluorine-containing solvent selected from the group consisting of F(CF2)6OCH3, F(CF2)7OCH3, F(CF2)8OCH3, F(CF2)9OCH3 and F(CF2)10OCH3, and mixtures thereof, and a fluorine-containing amorphous polymer having a fluorine-containing ring structure in its main chain, dissolved in the solvent, and then drying the fluorine-containing solvent.

A process for forming a thin film of a fluorine-containing amorphous polymer on a substrate, which comprises coating on the substrate a fluorine-containing polymer composition comprising a fluorine-containing solvent selected from the group consisting of F(CF2)6OCH3, F(CF2)7OCH3, F(CF2)8OCH3, F(CF2)9OCH3 and F(CH2)10OCH3, and mixtures thereof, and a fluorine-containing amorphous polymer having a fluorine-containing ring structure in its main chain, dissolved in the solvent, and then drying the fluorine-containing solvent to form a thin film of the fluorine-containing amorphous polymer on the substrate, and then peeling the thin film of the fluorine-containing amorphous polymer from the substrate.

A process for forming a thin film of a fluorine-containing amorphous polymer on a substrate, which comprises coating on the substrate a fluorine-containing polymer composition comprising a fluorine-containing solvent of the formula R1—O—R2 wherein R1 is a C5-12 linear or branched perfluoroalkyl group which may have an ether bond, and R2 is a C1-5 linear or branched alkyl group, and a fluorine-containing amorphous polymer having a fluorine-containing ring structure in its main chain, dissolved in the solvent, and then drying the fluorine-containing solvent.