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AssigneeUsinor
InventorDaniel Fousse
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Process for manufacturing metallic strip for packaging comprising strip steel covered on at least one of its faces with a coating containing a sub-layer of tin and an external film of polymer, according to which: on one hand, a layer of tin is deposited on at least one of the faces of the steel strip; and on the other, a layer of tin is vacuum-deposited on one face of at least one polymer film; then at least one polymer film covered with tin and the steel strip having at least one layer of tin are brought together in such a way that the face of at least one film of polymer covered with tin or tin base alloy will be across from one face of the steel strip having a layer of tin and injecting a flux between the said faces to clean the surfaces covered with tin; and at least one polymer film is welded on the face of the steel strip.
A method for manufacturing a coated metallic strip for packaging comprising a thin metallic strip coated on at least one of its faces with a coating containing, in order starting from the surface of the thin metal strip, a layer of tin or tin base alloy, optionally an intermediate metal layer, and an organic layer formed of a polymer film, comprising:
A coated metallic strip for packaging made up of steel strip coated on at least one of its faces with a coating having, in order starting from the surface of the thin metallic strip, a layer of tin or tin base alloy, an intermediate metallic layer of aluminum or aluminum base alloy and a thermoplastic polymer film, and not having any trace of adhesive between the layer of tin or tin base alloy and the thermoplastic polymer film.
A method for manufacturing a coated metallic strip for packaging comprising a thin metallic strip coated on two of its faces with a coating containing, in order starting from the surface of the thin metallic strip, a layer of tin or tin base alloy, optionally an intermediate metal layer, and an organic layer formed of a polymer film, comprising:
Dependencies are inferred from the claim text.