Patent ID: 6284379
Filing Date: 2001-09-04
Classification: C08K,C09D,Y10T

Abstract:
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 R.sup.1 --O--R.sup.2 wherein R.sup.1 is a C.sub.5-12 linear or branched polyfluoroalkyl group which may have an ether bond, and R.sup.2 is a C.sub.1-5 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, 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.