B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 27/08 (2006.01) B32B 7/02 (2006.01) B32B 27/28 (2006.01) B32B 27/30 (2006.01) B32B 27/32 (2006.01) B65B 25/00 (2006.01) B65D 65/40 (2006.01)
Patent
CA 2403389
The present invention provides a packaging film including: (a) an outer layer comprising an ionomer to provide thermal resistance; and (b) an inner layer comprising a polymeric material having a sealing temperature lower than the sealing temperature of the outer layer. The invention also provides a method of making a paCkaging film as described above, which includes the steps of (a) co-extruding a first layer comprising an ionomer and a second layer comprising a polymeric material having a sealing temperature lower than the first layer; and (b) cooling the co-extruded film. A method of packaging a food product is also provided.
L'invention concerne un film d'emballage comprenant : (a) une couche extérieure contenant un ionomère servant à conférer au film une résistance thermique ; et (b) une couche intérieure comprenant un matériau polymère présentant une température de soudage inférieure à la température de soudage de la couche extérieure. L'invention concerne également un procédé de production dudit film d'emballage, consistant à : (a) coextruder une première couche contenant un ionomère et une deuxième couche comprenant un matériau polymère présentant une température de soudage inférieure à celle de la première couche ; et (b) refroidir le film coextrudé. L'invention concerne en outre un procédé pour emballer un produit alimentaire.
Bainbridge Graham Thomas Hunter
Meyer Stephen John
Narayan Annant
Ward Graeme Morrow
Danaflex Packaging Corporation Limited
Gowling Lafleur Henderson Llp
LandOfFree
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