C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 77/00 (2006.01) B32B 27/34 (2006.01)
Patent
CA 2434589
The invention relates to a laminated, multlayered, weldable flat film for the production of welded tubular films and the use thereof for wrapping and packaging foodstuffs. The inventive flat film has two weldable surface layers made of at least one copolyamide and at least one amorphous polyamide and/or at least one homopolyamide and/or at least one modified polyolefin, and is produce by laminating at least two single-layered or multilayered and, optionally, biaxially drawn flat films.
L'invention concerne une feuille plate multicouche laminée soudable destinée à la fabrication de feuilles en gaine soudées, ainsi que l'utilisation de ces feuilles en gaine pour l'enveloppage et l'emballage d'aliments. La feuille plate selon l'invention présente deux couches de surface soudables constituées d'au moins un copolyamide et d'au moins un polyamide amorphe et/ou d'au moins un homopolyamide et/ou d'au moins une polyoléfine modifiée, et est fabriquée par laminage d'au moins deux feuilles plates monocouches ou multicouches éventuellement étirées biaxialement.
Grund Hartmut
Lang Horst
Schauer Helmut
Borden Ladner Gervais Llp
Naturin Gmbh & Co.
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