Abstract: The present invention relates to a device with a hydrophobic and/or lipophobic surface comprising a carpet of nanofibers (20), wherein these nanofibers (20) are totally cladded with a hydrophobic and/or lipophobic continuous film, and wherein the surface (22) between these nanofibers is covered with a layer of this same polymer. The invention also relates to a method for making such a device.

Abstract: Multilayer film comprising a surface layer and at least one other layer under the said surface layer, each of the said surface layers and of the other layers comprising at least one organic polymer and being free of complexing agents, chelating agents and, optionally, mineral fillers, and the said surface layer also comprising at least one agent capable of promoting the removal of the said surface layer by a rinsing liquid. Process for preparing this film. Surface layered with this film and substrate comprising this surface. Process for protecting a surface against contaminants or pollutants using the said film and process for cleaning or decontaminating a surface similarly using the said film. The invention applies in particular to the protection of surfaces such as walls, facades and road signs against graffiti.

Abstract: This invention relates to a process for cleaning surfaces, notably metal surfaces.

Abstract: The invention relates to a method of decontamination or preventing contamination of surfaces by an exchange mechanism.

Abstract: The present invention relates to a film, dispersible as an emulsion in water, comprising at least one polymer and containing at least one chelating or complexing agent.

Abstract: This invention relates to a process for manufacturing a lithiated or overlithiated transition metal oxide comprising the following three steps, carried out successively or in a simultaneous manner: preparation of a solution of lithium alkoxide by dissolving lithium metal in an alcohol, the said alcohol being chosen among the alcohols originating from linear or ramified alkanes comprising at least three carbon atoms, the alcohols originating from unsaturated aliphatic hydrocarbides, and mixtures of them; addition of a transition metal oxide powder to the said lithium alkoxide solution to obtain a dispersion; controlled reduction of the said transition metal oxide by the said alkoxide to obtain a lithiated or overlithiated transition metal oxide with a defined Li:Metal stoichiometry; the said process also comprising the following steps: evaporation of the residual alcohol, rinsing of the powder thus obtained, drying of the powder.