A composite material comprising a substrate with a barrier...

Details A composite material comprising a substrate with a barrier... A composite material comprising a substrate with a barrier...

C - Chemistry, Metallurgy

23

C

C23C 14/12 (2006.01) C08J 7/06 (2006.01)

Patent

CA 2335063

The invention relates to a composite material and a process for manufacturing the composite material by applying at least a single organic barrier layer to a substrate to reduce the oxygen permeability of the substrate. Depending on the intended application, the composite material may also include an outer cover layer over the barrier layer to improve moisture resistance. The preferred materials are triazines, particularly melamine, that are vapour-deposited onto the substrate to form a thin, durable transparent barrier layer.

L'invention concerne un matériau composite et un procédé de fabrication du matériau composite par l'application d'au moins une couche barrière organique unique à un substrat dans le but de réduire la perméabilité du substrat à l'oxygène. En fonction de l'application désirée, le matériau composite peut également inclure une couche de revêtement externe, posée par-dessus la couche barrière pour améliorer la résistance à l'humidité. Les matériaux préférés sont les triazines, notamment la mélamine, qui sont déposées en phase vapeur sur le substrat pour former une couche barrière mince, transparente et durable.

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