Abstract: To provide a reinforced glass container which has impact resistance and which can be used for treatment involving exposure to high temperatures or ultraviolet irradiation. The reinforced glass container of the present invention comprises a glass container and a polymer layer provided on the outer surface of the glass container and having a thickness of more than 1 ?m, wherein the polymer layer contains a tetrafluoroethylene type polymer having a melting temperature of more than 260° C. and having carbonyl group-containing groups or hydroxy group-containing groups.

Abstract: To provide a powder dispersion comprising a tetrafluoroethylene polymer, a particular polyoxyalkylene-modified polydimethylsiloxane and a liquid dispersion medium, and a composite having a baked product having physical properties intrinsic to the tetrafluoroethylene polymer. [Solution] The powder dispersion of the present invention comprises a powder of a tetrafluorethylene polymer, a liquid dispersion medium and a polyoxyalkylene-modified polydimethylsiloxane having a weight average molecular weight of at most 3,000 and an HLB value of from 1 to 18 calculated by Griffin's equation The composite of the present invention is produced by applying the powder dispersion of the present invention to the surface of a substrate and heating the powder dispersion.