B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/28 (2006.01) B29C 47/06 (2006.01) B32B 7/02 (2006.01) B32B 27/08 (2006.01)
Patent
CA 2510419
A multilayer shrink film and methods of making same comprising one or more polyethylenic layers, one or more polystyrenic layer and polystyrene compatibilizing layers situate between each polyethylenic layer and polystyrenic layer wherein the polystyrene compatibilizing layers comprise less than 1 % by weight substantially random interpolymer. The multilayer shrink films of the invention are produced using film biaxial orienting means.
La présente invention concerne un film rétrécissable multicouche ainsi que des procédés de production de ce film qui comprend au moins une couche polyéthylénique, au moins une couche polystyrénique et des couches de compatibilisation du polystyrène situées entre chaque couche polyéthylénique et chaque couche polystyrénique, lesdites couches de compatibilisation renfermant moins de 1% en poids d'interpolymère sensiblement aléatoire. Les fils rétrécissables multicouches selon la présente invention sont produits à l'aide d'un moyen d'orientation biaxiale du film.
Gowling Lafleur Henderson Llp
Ipg Technologies Inc.
LandOfFree
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