Plasma treated evoh multilayer film

Details Plasma treated evoh multilayer film Plasma treated evoh multilayer film

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 27/16 (2006.01) C08L 23/08 (2006.01) C08L 29/04 (2006.01) C08L 27/12 (2006.01) C08L 27/16 (2006.01) C08L 27/18 (2006.01)

Patent

CA 2751881

The present invention relates to barrier film structures and, more particularly, to film structures having EVOH and fluoropolymer in skin layer. The addition of fluoropolymer in the skin layer allows trim recycling and improves the metal appearance in the metallization by reducing die lines and scratches. Improved barrier performances have been achieved by using plasma treatment during metal vacuum deposition in the vacuum chamber.

La présente invention porte sur des structures de film barrière et, plus particulièrement, sur des structures de film ayant de l'EVOH et un polymère fluoré dans une couche de peau. L'ajout d'un polymère fluoré dans la couche de peau permet le recyclage des ébarbures et améliore l'aspect métallique dans la métallisation, par réduction des bavures de matrice et des rayures. Des performances de barrière améliorées ont été réalisées à l'aide d'un traitement par plasma pendant le dépôt du métal sous vide dans la chambre sous vide.

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