Commissariat a L'energie Atomique Et Aux Energies Alternatives

Amélie Ludwig

Fabien Frances

Frédéric Goettmann

Frederic Goettmann

Charline Legoff

Valérie Tanchou

Romain Castellani

A decontamination gel is provided consisting of a colloidal solution comprising 0.1% to 30% by mass, preferably 0.1% to 25% by mass, still more preferably from 5% to 25% by mass, even more preferably 8% to 20% by mass, based on the mass of the gel, of at least one inorganic viscosifying agent; 0.1 to 10 mol/L of gel, preferably 0.5 to 10 mol/L of gel, still more preferably 1 to 10 mol/L of gel of at least one active decontamination agent; 0.01% to 10% by mass, preferably 0.1% to 5% by mass based on the mass of the gel of at least one mineral pigment; optionally, 0.1% to 2% by mass based on the mass of the gel, of at least one surfactant; optionally, 0.05% to 5% by mass, preferably 0.05% to 2% by mass, based on the mass of the gel, of at least one super-absorbent polymer; and the balance of solvent.

Pigmented decontaminating gel and method for decontaminating surfaces using said gel

The invention relates to a gel for removing a graffiti from a surface of a solid substrate, consisting of a colloidal solution comprising an inorganic viscosifying agent, at least one solvent, optionally at least one surfactant, and optionally at least one dye and/or pigment. The invention also relates to a method for removing a graffiti from a surface of a solid substrate, wherein the gel is applied to said surface.

Gel for removing graffiti and method for removing graffiti using said gel

A biological decontamination gel is provided, consisting of a colloidal solution comprising 5% to 30% by mass, preferably 5% to 25% by mass, still more preferably 8% to 20% by mass based on the mass of the gel, of at least one inorganic viscosifying agent; an active biological decontamination agent consisting of the combination of a mineral base selected from hydroxides of alkaline metals, hydroxides of earth alkaline metals, and mixtures thereof, and of an oxidizing agent stable in a basic medium selected from permanganates, persulfates, ozone, hypochlorites, and mixtures thereof; the mineral base being present in an amount from 0.05 to 10 mol/L of gel, preferably in an amount from 0.1 to 5 mol/L of gel, and the oxidizing agent stable in a basic medium being present in an amount from 0.05 to 5 mol/L of gel, preferably from 0.1 to 2 mol/L of gel; optionally 0.1% to 2% by mass based on the mass of the gel, of at least one surfactant; and the balance of solvent; and the gel not containing any super-absorbent polymer.

Oxidizing alkaline biodecontamination gel and surface biodecontamination method using said gel

The use of a gel consisting of a colloidal solution comprising, preferably consisting of: 5% to 30% by weight, preferably 5% to 25% by weight, more preferably 8% to 20% by weight relative to the weight of the gel, of at least one inorganic viscosifying agent; a mineral base selected from among hydroxides of alkaline metals, hydroxides of alkaline-earth metals and the mixtures thereof, said mineral base being present in a proportion of 0.05 to 10 mol/L of gel, preferably in a proportion of 0.1 to 5 mol/L of gel; an oxidizing agent stable in a basic medium selected from among permanganates, persulfates, ozone, hypochlorites and the mixtures thereof, said oxidizing agent stable in a basic medium being present in a proportion of 0.05 to 5 mol/L of gel, preferably 0.1 to 2 mol/L of gel; 0.1% to 2% by weight relative to the weight of the gel, of at least one surfactant; and a solvent; the gel not containing any super-absorbent polymer, to remove a biofilm present on a surface of a solid substrate.

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Salon de Provence, France

Amélie Ludwig