Thermoplastic film for packaging

Details Thermoplastic film for packaging Thermoplastic film for packaging

B - Operations, Transporting

32

B

B32B 27/08 (2006.01) B32B 27/32 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2319748

A thermoplastic shrinkable film consisting of two or more layers, including, at least, (a) a layer of a polyolefin, (b) a layer of a blend of a polyolefin and an ionomer is disclosed. Optionally, the film contains (c) a further layer of a polyolefin, in which case layer (b) is positioned between layers (a) and (c). Films according to this invention demonstrate omnidirectional tearability, good clarity and strength and are cost competitive with other films on the market.

L'invention concerne un film rétractable thermoplastique constitué de deux ou davantage de couches, notamment d'au moins (a) une couche d'une polyoléfine, (b) une couche d'un mélange d'une polyoléfine et d'un ionomère. Le film contient éventuellement (c) une couche supplémentaire d'une polyoléfine, auquel cas la couche (b) est placée entre les couches (a) et (c). Les films de l'invention présentent une aptitude au déchirement dans tous les sens, une bonne transparence et une bonne résistance, et sont concurrentiels du point de vue des prix par rapport à d'autres films existant sur le marché.

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