Abstract: An image forming member for electrophotographic copying machines, facsimile machines and printers which has semi-conductivity, non-tackifying property and high dielectric property and therefore has high charging and image-transferring efficiency, is excellent in feeding property and separability of papers, is free from paper jamming and can give an excellent image stably; a paint used for the member; a carbon fluoride composition used for the paint; a composite material of fine particles of carbon fluoride; and a process for preparing the composite material are provided. The carbon fluoride composition comprises carbon fluorides and at least one selected from the group consisting of resins and rubbers and has semi-conductivity, non-tackifying property and a specific dielectric constant of not less than 10 at 25° C. at 1 kHz.

Abstract: Fluorine-containing resin molded article including a molded article of a fluorine-containing resin composition containing 0.1 to 30% by weight of a carbon material, a surface of said molded article being fluorinated. The fluorine-containing resin molded article can be obtained by, after preparing molded article of a fluorine-containing resin composition containing 0.1 to 30% by weight of a carbon material, fluorinating the surface of the article with a reaction gas which comprises a compound containing fluorine atom. This fluorine-containing resin molded article has an antistatic property and non-tackiness.

Abstract: Carbon fluoride particles in which a number-average particle size is 0.01 to 50 .mu.m, a content of particles having such a diameter that the particles size distribution falls with in range of the number-average particle size .+-.20% amounts to at least 50% of the whole, a true specific gravity is 1.7 to 2.5, a F/C as a whole is 0.001 to 0.5, and a F/C at the surface is always larger than the F/C as a whole and is 0.1 to 2. 0. These carbon fluoride partilces are obtainable by reacting carbon particles with fluorine at 350.degree. to 600.degree. C. for one minute to six hours.

Abstract: Fluorine-containing resin molded article comprising a molded article of a fluorine-containing resin composition containing 0.1 to 30% by weight of a carbon material, a surface of said molded article being fluorinated. The fluorine-containing resin molded article can be obtained by, after preparing molded article of a fluorine-containing resin composition containing 0.1 to 30% by weight of a carbon material, fluorinating the surface of the article with a reaction gas which comprises a compound containing fluorine atom. This fluorine-containing resin molded article has an antistatic property and non-tackiness.

Abstract: Carbon fluoride particles in which a number-average particle size is 0.01 to 50 .mu.m, a content of particles having such a diameter that the particles size distribution falls with in range of the number-average particle size .+-.20% amounts to at least 50% of the whole, a true specific gravity is 1.7 to 2.5, a F/C as a whole is 0.001 to 0.5, and a F/C at the surface is always larger than the F/C as a whole and is 0.1 to 2.0. These carbon fluoride particles are obtainable by reacting carbon particles with fluorine at 350.degree. to 600.degree. C. for one minute to six hours.

Abstract: A composition which is capable of imparting electrical conductivity and non-tackifying property, comprising (A) a carbon fluoride in which a ratio F/C of fluorine atom to carbon atom is more than 0.5 and less than 1.0 and (B) at least one selected from the group consisting of a thermoplastic resin, a thermosetting resin and a rubber, a paint composition containing the same, and a semi-electrically conductive roller for electrostatic copying machine having an electrically resistive layer formed from the composition.