Gas barrier laminate film

B - Operations – Transporting – 32 – B

Patent

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B32B 9/00 (2006.01) C08J 7/04 (2006.01)

Patent

CA 2507030

A gas barrier laminate film comprising a resin substrate on which a gas barrier vapor deposition layer, and a gas barrier covering layer are laminated, wherein the gas barrier covering layer is formed through the coating, and drying of a coating liquid comprising Si(OR1)4 or the hydrolyzates thereof, (R2Si(OR3)3)n or the hydrolyzates thereof (wherein R1 and R3 are individually CH3, C2H5 or C2H4OCH3, and R2 is an organic functional group) and a water-soluble polymer having a hydroxyl group.

Selon l'invention, une couche d'oxyde inorganique de dépôt et une couche de revêtement perméable au gaz sont formées séquentiellement sur un support. La couche de revêtement perméable au gaz est formée par application puis séchage d'un enduit liquide sur la couche d'oxyde inorganique de dépôt. L'enduit liquide contient une substance exprimée par la formule générale (1): Si(OR?1¿)¿4? ou son hydrolysat; une substance exprimée par la formule générale (2): (R?2¿Si(OR?3¿)¿3?)¿n? ou son hydrolysat (R?1¿ et R?3¿ représente respectivement dans lesdites formules CH¿3?, C¿2?H¿5?, ou C¿2?H¿4?OCH¿3?; et R?2¿ représente un groupe fonctionnel organique); et un polymère soluble dans l'eau présentant un groupe hydroxyle.

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