Use of dispersions based on polyvinyl acetate as a barrier layer
The invention relates to the use of aqueous dispersions containing at least 50 wt% (in relation to the solid body) of polyvinyl acetate copolymers A and at least one polymer B which is different from said latter and which comprises hydroxy and/or ionic groups, for producing a barrier layer on film-s...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the use of aqueous dispersions containing at least 50 wt% (in relation to the solid body) of polyvinyl acetate copolymers A and at least one polymer B which is different from said latter and which comprises hydroxy and/or ionic groups, for producing a barrier layer on film-shaped or flat substrates. |
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