Biaxially oriented, multilayer polypropylene film, process...

B - Operations – Transporting – 32 – B

Patent

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B32B 27/32 (2006.01)

Patent

CA 2140464

The disclosed biaxially oriented, multilayer polypropylene film comprises at least one base layer B, one interlayer Z and one top layer D and contains migrating additives. The film contains a maximum of 0.15% by weight of migrating additives, based on the total weight of the film. The multilayer film structure is produced by coextrusion and biaxial stretching followed by heat-setting and, optionally, corona treatment. The film is particularly useful in packaging and in laminates.

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