High-barrier composites and method for the production thereof

C - Chemistry – Metallurgy – 09 – D

Patent

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Details

C09D 183/04 (2006.01) C08J 7/04 (2006.01) H01L 51/52 (2006.01)

Patent

CA 2746559

The invention pertains to a high-barrier composite, comprising a substrate, a first layer made of an exclusively inorganic material, a first layer made of an inorganic- organic hybrid material, and a second layer made of an exclusively inorganic material, characterized in that the layer made of inorganic-organic hybrid material is arranged directly between the two layers made of exclusively inorganic material and has a thickness of less than 1 µm. The composite can be produced using the steps wherein the layer or layers made of inorganic-organic hybrid material is/are applied to the [sic, word missing - substrate? - Tr.] coated with inorganic material by means of applying a lacquer material with a viscosity of 0.002 Pas to 0.02 Pas and/or a surface tension in the range of 25 mN/m to 35 mN/m or a laminating material with a viscosity of 0.1 Pas to 200 Pas, wherein the substrate is transported without contact with the means effecting the transport.

L'invention porte sur un composite à effet barrière élevé, comprenant un substrat, une première couche en un matériau exclusivement inorganique, une première couche en un matériau hybride inorganique-organique et une deuxième couche en un matériau exclusivement inorganique, caractérisé en ce que la couche en un matériau hybride inorganique-organique est disposée directement entre les deux couches en un matériau exclusivement inorganique, et présente une épaisseur inférieure à 1 µm. Le composite peut être fabriqué à l'aide des étapes selon lesquelles la couche ou les couches en un matériau hybride inorganique-organique est/sont appliquée(s), par application d'un matériau de type vernis, ayant une viscosité de 0,002 à 0,02 Pa.s et/ou une tension superficielle comprise dans la plage de 25 à 35 mN/m, ou d'un matériau de contre-collage ayant une viscosité de 0,1 à 200 Pa.s, sur le substrat revêtu du matériau inorganique, le transport du substrat s'effectuant sans contact avec les moyens assurant le transport.

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