COATED FILMS AND PACKAGING THEREFROM Russian patent published in 2021 - IPC C08J7/04 B32B27/32 

Abstract RU 2741434 C2

FIELD: packaging industry.

SUBSTANCE: invention relates to coated films and packages made from said films. Coated film comprises a film comprising a first layer, a second layer and at least one inner layer between the first and second layers. First layer contains 70–100 wt % of polyethylene having density of 0.930 g/cm3 or less and a peak melting point of less than 126 °C. Second layer comprises 60–100 wt % of polyethylene having density of 0.905–0.970 g/cm3 and a maximum melting point of 100–135 °C. Inner layer comprises 40–100 wt % of polyethylene having density of 0.930–0.970 g/cm3 and a maximum melting point of 120–135 °C, where polyethylene is medium density polyethylene or high-density polyethylene. Film also contains a coating on the outer surface of the second film layer containing cross-linked polyurethane. Said coating contains less than 5 mol % of isocyanate groups.

EFFECT: simplified production of film and improved processability.

10 cl, 2 tbl, 2 ex

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RU 2 741 434 C2

Authors

Kelli-Rouli, Enn M.

Cherchfild, Meshell A.

Vagner, Nikol L.

Poupa, Pol Dzh.

Dzhopko, Larri

Serrat, Kristina

Dates

2021-01-26Published

2017-05-25Filed