Abstract: To provide a fluorinated elastic copolymer composition such that solubility of a fluorinated elastic copolymer in a solvent is excellent, the solvent is easily removed, and the solvent is easily available. A fluorinated elastic copolymer composition comprising a fluorinated elastic copolymer having units based tetrafluoroethylene and units based on CF2=CFORf1 (wherein Rf1 is a C1-10 perfluoroalkyl group), and a fluorinated solvent having a perfluorohydrocarbon group, wherein the perfluorohydrocarbon group having the largest number of carbon atoms in the fluorinated solvent has from 3 to 7 carbon atoms, the fluorinated solvent has a boiling point of from 50 to 160° C., and the fluorinated solvent has a fluorine atom content (fluorine atom content (mass %)=(19× number of fluorine atoms in the fluorinated solvent/molecular weight of the fluorinated solvent)×100) of from 69 to 80 mass %.

Abstract: To provide a fluorinated elastic copolymer composition such that solubility of a fluorinated elastic copolymer in a solvent is excellent, the solvent is easily removed, and the solvent is easily available. A fluorinated elastic copolymer composition comprising a fluorinated elastic copolymer having units based tetrafluoroethylene and units based on CF2=CFORf1 (wherein Rf1 is a C1-10 perfluoroalkyl group), and a fluorinated solvent having a perfluorohydrocarbon group, wherein the perfluorohydrocarbon group having the largest number of carbon atoms in the fluorinated solvent has from 3 to 7 carbon atoms, the fluorinated solvent has a boiling point of from 50 to 160° C., and the fluorinated solvent has a fluorine atom content (fluorine atom content (mass %)=(19×number of fluorine atoms in the fluorinated solvent/molecular weight of the fluorinated solvent)×100) of from 69 to 80 mass %.

Abstract: A low dielectric resin composition comprising the following components (a) and (b), and the dielectric constant of a coating film formed by this composition being at most 3:(a) a resin having functional groups in its molecule and being soluble in a solvent; and(b) a partially hydrolyzed condensate of alkoxysilanes of the formula R.sup.1.sub.m R.sup.2.sub.n Si(OR.sup.3).sub.4-m-n, wherein each of R.sup.1 and R.sup.2 which may be the same or different, is a non-hydrolyzable group, R.sup.3 is an alkyl group, and m and n are integers of from 0 to 3 satisfying 0.ltoreq.m+n.ltoreq.3.