The invention relates to a process for the preparation of an oxygen barrier film having an oxygen barrier layer and a treated substrate, comprising the steps of: a) subjecting a polyolefin substrate to a surface treatment to 5 obtain the treated substrate wherein the surface under the parts of the curves corresponding to the C-O, C-N and C=O groups is at least 10% based on the total surface under the curve as obtained by X-ray photoelectron spectroscopy (XPS), b) applying an aqueous or hydroalcoholic coating composition comprising 0.1 to 25 10 wt% of polyvinyl alcohol and 0.1 to 30 wt% of a metal alkoxide on the treated substrate obtained by step a) and c) drying the coating composition to obtain the oxygen barrier layer resulting in the oxygen barrier film.

Process for the preparation of oxygen barrier film / Soliman, Maria; Vachon, Jerome; Poulet, Estelle; Dalcanale, Enrico; Pinalli, Roberta; Menozzi, Daniela; Alfieri, Ilaria; Lorenzi, Andrea. - ELETTRONICO. - (2019).

Process for the preparation of oxygen barrier film

Enrico Dalcanale;Roberta Pinalli;Daniela Menozzi;Ilaria Alfieri;Andrea Lorenzi
2019

Abstract

The invention relates to a process for the preparation of an oxygen barrier film having an oxygen barrier layer and a treated substrate, comprising the steps of: a) subjecting a polyolefin substrate to a surface treatment to 5 obtain the treated substrate wherein the surface under the parts of the curves corresponding to the C-O, C-N and C=O groups is at least 10% based on the total surface under the curve as obtained by X-ray photoelectron spectroscopy (XPS), b) applying an aqueous or hydroalcoholic coating composition comprising 0.1 to 25 10 wt% of polyvinyl alcohol and 0.1 to 30 wt% of a metal alkoxide on the treated substrate obtained by step a) and c) drying the coating composition to obtain the oxygen barrier layer resulting in the oxygen barrier film.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11381/2859450
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