Abstract: A precursor for an active material, said precursor comprising an inorganic oxide and having hydroxide groups on a surface thereof, said hydroxide group being in such an amount as to precipitate an inorganic component in a reactive solution containing said inorganic component when the precursor is immersed in the solution.

Abstract: A surface of a given base material is hydrophilized by irradiating, for example, a vacuum ultraviolet light to itself. Then, on the surface is formed a monomolecular film made of a fluoroalkylsilane preferably having at least one of a long fluoroalkyl-chain and a long alkyl-chain which preferably have lengths of not less than 1 nm. Then, the base material and the monocular film are thermally treated and thereby a member having a high lubricative surface can be obtained which has strong couplings between the base material and the molecular film through a dehydrating condensation reaction.

Abstract: Disclosed is a method and apparatus of molding laminated plates each comprising a honeycomb core sandwiched between two opposite reinforced resin sheets as skin layers. A molding surface is composed of a plurality of unit area of divisional sections, each having a heating layer embedded therein. A prepreg is used as the reinforced resin layers. The laminated plates are formed by putting the prepreg on a honeycomb material or a honeycomb material on a prepeg, and heating the laminate by a heating layer having nichrome wires. The same procedure is repeated to cover the other side of the honeycomb structure by another reinforced resin layer.