Multiple layer packaging films and packages formed thereof

Details Multiple layer packaging films and packages formed thereof Multiple layer packaging films and packages formed thereof

B - Operations, Transporting

32

B

154/140, 154/141

B32B 27/08 (2006.01) B32B 27/36 (2006.01) B65D 30/08 (2006.01) B65D 65/40 (2006.01) C09J 123/10 (2006.01)

Patent

CA 1265035

ABSTRACT OF THE DISCLOSURE The invention discloses a multiple layer film useful in packaging, and the packages made therefrom. A first layer of the film is a material containing an ester group, a poly- carbonate or a polyether block amide copolymer. A second layer of the film is a sealant, preferably polypropylene poly- mer blended with an elastomeric styrene ethylene butylene styrene copolymer. A third functionally adhesive layer is between the first and second layers. The composition of the third adhesive layer is typically either a polypropylene modi- fied with a carboxy group such as an organic acid or anhydride or a styrene ethylene butylene styrene copolymer.

524072

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