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AssigneeGlass Surface Technology
InventorsChristophe Wagner, Alexis Marsal
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The invention relates to a method for producing a neutral barrier layer for coating the inner surface of a receptacle for holding products that are biocompatible for humans and/or animals, and to the receptacle obtained by said method. According to the invention, a solution is formed that contains at least one solvent, water, at least one complexing molecular alkoxysilane precursor, at least one surfactant, at least one pigment and/or coloring agent, and a catalytic acid, the complexed solution, which is undergoing hydrolysis and condensation, is homogeneously applied to at least one portion of the inner surface of the receptacle, the applied solution is dried at a specific drying temperature such that a layer is formed which is opaque, translucid and/or forms a particular pattern, and the receptacle is conveyed away, stored and filled with the product.
A process for the manufacture of a neutral and barrier layer with an inorganic matrix (19) for coating the internal face (17) of a receptacle (16) suitable for containing products biocompatible with man and/or animals, in which:
A receptacle (16) made of glass appropriate for containing products biocompatible with man and/or animals comprising an internal surface (17), characterized in that said internal surface (17) is covered, over at least a part, with a layer of solidified inorganic coating matrix (19) obtained by the process as claimed in any one of the preceding claims, said coating layer (19) forming a matrix arranged in order to produce a physicochemical barrier.
Dependencies are inferred from the claim text.