Metallic composite material and method for the production...

Details Metallic composite material and method for the production... Metallic composite material and method for the production...

B - Operations, Transporting

32

B

B32B 15/085 (2006.01) B05D 7/14 (2006.01) B05D 1/26 (2006.01) B05D 3/02 (2006.01)

Patent

CA 2323901

The invention relates to a metal composite material which can be deep-drawn and sterilized and to a method for the production thereof, wherein a metallic band (1) is coated with a modified plastic layer (2) based on modified polypropylene by means of extrusion and, in addition, is optionally coated with a plastic layer (3) based on polypropylene by means of coextrusion. Afterwards, the resulting metallic composite material is heated to a temperature above the melting point of the modified plastic layer for a duration of 1 to 10 seconds.

L'invention concerne un matériau composite métallique emboutissable et stérilisable, ainsi que son procédé de fabrication. Dans ce procédé, une bande métallique (1) est revêtue, par extrusion, d'une couche plastique modifiée (2) à base de polypropylène modifié et, par coextrusion, éventuellement également d'une couche plastique (3) à base de polypropylène. Le matériau composite métallique obtenu est ensuite chauffé à une température se situant au-dessus du point de fusion de la couche plastique modifiée, pendant une durée de 1 à 10 secondes.

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