FIELD: packaging industry.
SUBSTANCE: invention relates to a barrier coating composition, to a sheet-like article and to use of the article for making food packaging. Barrier coating composition contains 30–65 wt. % styrene-(meth)acrylate copolymer, which polymerizes in the presence of a stabilizer and which has a glass transition temperature Tg ≤20 °C, 30–65 wt. % polyvinyl alcohol and 0.1–5.0 wt. % cross-linking reagent, which reacts with HO- or HOOC-groups.
EFFECT: improved barrier properties against penetration of liquid and water vapor, as well as high resistance to cracking during bending and folding.
18 cl, 10 dwg, 22 tbl, 17 ex
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Authors
Dates
2022-03-22—Published
2018-06-14—Filed