Process for preparation of multilayer films

Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...

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26417315, 2642107, 2642358, B29C 4706, B29C 5514

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active

056884567

ABSTRACT:
A process for preparing a multilayer film having at least one polyamide layer include the steps of forcing out from a T-die by co-extrusion a multi-layer film having a layer containing about 50 to about 95% by weight of a crystalline polyamide and about 50 to about 5% by weight of an amorphous polyamide, and stretching the film at least in the lateral direction.

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