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Abstract

The present invention relates to a process for producing NTRA by interfacial polymerisation of a cyanoacrylate monomer at the interface between the mixture of organic material and colloidal oxide nanoparticles with the aqueous medium, in the form of an emulsion, the colloidal oxide nanoparticles being optionally included. The NTRA synthesis process comprises six successive processing steps: a) solubilising the organic material and dispersing the colloidal oxide nanoparticles in a solvent, the organic phase; b) pre-emulsifying the organic phase in a solution of water and emulsifiers; c) diffusing this pre-emulsion in an aqueous phase containing emulsifiers; d) distilling the solvents; and finally e) polymerising the monomer and forming the shell of the nanoencapsulated products, with f) optionally drying the product. The resultant NTRA can be in the form of a colloidal dispersion in an aqueous medium or in the form of nanoparticles. The NTRA produced by this process makes it possible to obtain various types of products for use in the industries of cosmetics, pharmaceuticals, medical equipment, prostheses, textiles, paints, coatings, composites, packaging, civil engineering, electrical or electronic equipment, automobile and paper industries.

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First Claim