Multi-layer film containing a layer of crosslinked ethylene/viny

Details Multi-layer film containing a layer of crosslinked ethylene/viny Multi-layer film containing a layer of crosslinked ethylene/viny

1978-08-07

1980-12-23

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264173, 264185, 428500, 428520, 526331, B29C 2500

Patent

active

042409934

ABSTRACT:
A multi-layer film having a crosslinked layer of an olefin vinyl alcohol copolymer is produced by providing a substrate layer and a layer of a copolymer of an olefin and a vinyl ester. The multi-layer structure is crosslinked preferably by irradiation and then hydrolyzed to convert the olefin/vinyl ester copolymer into a copolymer of the olefin and vinyl alcohol. The thus produced structure may be incorporated into a further film combination by extrusion coating additional layers. The multi-layer structure may be oriented to produce a heat shrinkable film for use as a packaging material.

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