Abstract: Provided is a coating film that can more reliably exhibit an excellent water repellency and an excellent oil repellency. This water- and oil-repellent coating film is a coating film formed on a surface of a material in order to impart water repellency and oil repellency, wherein (1) the coating film contains a metal oxide-containing composite particle; (2) the composite particle contains a) a metal oxide particle and b) a covering layer that contains a polyfluoroalkyl methacrylate resin and is formed on the surface of the metal oxide particle; and (3) a value obtained by dividing the fluorine content (weight %) of the composite particle by a surface area (m2/g) of the metal oxide particle is 0.025 to 0.180.

Abstract: Provided is a coating film that can more reliably exhibit an excellent water repellency and an excellent oil repellency. This water- and oil-repellent coating film is a coating film formed on a surface of a material in order to impart water repellency and oil repellency, wherein (1) the coating film contains a metal oxide-containing composite particle; (2) the composite particle contains a) a metal oxide particle and b) a covering layer that contains a polyfluoroalkyl methacrylate resin and is formed on the surface of the metal oxide particle; and (3) a value obtained by dividing the fluorine content (weight %) of the composite particle by a surface area (m2/g) of the metal oxide particle is 0.025 to 0.180.

Abstract: The present invention provides a protecting film capable of preventing deterioration in adhesion and matching to a substrate (dielectric layer), and deterioration in electric insulation. The protecting film includes a film body composed of MgO or the like which is inhibited from reacting with CO2 gas and H2O gas in air to prevent degeneration of MgO or the like into MgCO3 and Mg(OH)2, etc. harmful to FPD. The film body is formed on the surface of the substrate, and the fluoride layer is formed on the surface of the film body. The fluoride layer is represented by MOXFY (M is Mg, Ca, Sr, Ba, an alkali earth complex metal, a rare earth metal, or a complex metal of an alkali earth metal and a rare earth metal, 0≦X<2, and 0<Y≦4), and is obtained by reaction of a gaseous fluorinating agent with MgO or the like. As the gaseous fluorinating agent, a fluorine gas, a hydrogen fluoride gas, BF3, SbF5 or SF4 is preferably used.

Abstract: The present invention provides a protecting film capable of preventing deterioration in adhesion and matching to a substrate (dielectric layer), and deterioration in electric insulation. The protecting film includes a film body composed of MgO or the like which is inhibited from reacting with CO2 gas and H2O gas in air to prevent degeneration of MgO or the like into MgCO3 and Mg(OH)2, etc. harmful to FPD. The film body is formed on the surface of the substrate, and the fluoride layer is formed on the surface of the film body. The fluoride layer is represented by MOXFY (M is Mg, Ca, Sr, Ba, an alkali earth complex metal, a rare earth metal, or a complex metal of an alkali earth metal and a rare earth metal, 0≦X<2, and 0<Y≦4), and is obtained by reaction of a gaseous fluorinating agent with MaO or the like. As the gaseous fluorinating agent, a fluorine gas, a hydrogen fluoride gas, BF3, SbF5 or SF4 is preferably used.

Abstract: Disclosed are polyhedral organosilicon compounds which are possible to be polymerized and can form a film excellent in adhesiveness to a substrate, having a high hardness, a high transparency and having water and oil repellency, and comprise organofluoro groups or both of organofluoro groups and reactive functional groups, the compounds being soluble in an organic solvent and stable. Organosilicon compounds which have perfluoroalkyl groups or both perfluoroalkyl groups and reactive functional groups and which have a polyhedral structure have the following formulas of (I), (II) and (III): [Rf1—X1—(CH2)a—SiO1.5]m  (I) [Rf1—X1—(CH2)a—SiO1.5]m[Rf2—(X2)c—(CH2)b—SiO1.5]n  (II) [Rf1—X1—(CH2)a—SiO1.5]m[R—(X2)c—(CH2)b—SiO1.

Abstract: A hydrophobic metal oxide powder obtained by simultaneously surface-treating a powder of a metal oxide (for example, silica, titania, alumina, or the like) with silicone oil having epoxy groups and a non-polymeric amine compound having a lower number of primary and/or secondary amino groups than the number required for reaction with all epoxy groups, or surface-treating the powder with silicon oil having epoxy groups and amino groups and previously obtained by reaction. Straight silicone oil may be further used for surface treatment. Frictional charge which is controlled within a wide range of from negative charge to positive charge, high hydrophobicity and fluidity can be imparted to the powder by using a relatively small amount of coating, and a hydrophobic metal oxide powder useful as an additive for an electrophotographic developer can be obtained.