Heat sealable packaging film producing a peelable seal

Details Heat sealable packaging film producing a peelable seal Heat sealable packaging film producing a peelable seal

C - Chemistry, Metallurgy

08

L

154/140, 400/491

C08L 23/04 (2006.01) B32B 27/08 (2006.01)

Patent

CA 1157191

A B S T R A C T A heat sealable packaging film particularly suitable for producing a peelable seal by heat sealing on polystyrene. For this purpose, the composition of the film comprises: (a) 50 to 70% by weight of at least one ethylene polymer having a melt index of 0.5 to 7 g/10 min and selected from polyethylene having a density of from 0.910 to 0.925 g/cm3 and an ethylene-vinyl acetate copolymer containing at most 7% by weight of vinyl actetate, (b) 20 to 30% by weight of at least one ethylene-vinyl acetate copolymer containing 20 to 30% by weight of vinyl acetate and having a melt index of 0.5 to 7 g/10 min, and (c) 10 to 20% by weight of a styrene homopolymer having a melt index of 0.5 to 7 g/10 min. Also provided are packages including a container made from polystyrene and a covering film for the said container, which is made from the aforesaid film, laminated or not on other films.

380115

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