Method for improving the heat sealability of packaging material and method for manufacturing heat-sealed container or package

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United States of America Patent

PATENT NO 10857753
APP PUB NO 20180154603A1
SERIAL NO

15889250

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Abstract

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A method for improving the heat sealability of a packaging material and a method for manufacturing a heat-sealed container or package are described. The material can be polymer-coated packaging paper or cardboard, or a polymeric packaging film. The material includes a polymer layer that contains polyester, particularly polylactide, the heat sealability of which is improved by ultraviolet radiation. Polylactide is useful as such or when blended, for example, with other biodegradable polyester. The containers and packages thus manufactured include disposable drinking cups and cardboard carton and box packages.

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Patent Owner(s)

Patent OwnerAddress
STORA ENSO OYJP O BOX 309 HELSINKI 00101

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koskinen, Tapio Tampere, FI 3 17
Kotkamo, Sami Tampere, FI 5 22
Kuusipalo, Jurkka Tampere, FI 14 77
Nevalainen, Kimmo Kotka, FI 37 147
Penttinen, Tapani Huutjarvi, FI 37 249

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