Process for producing cross-linked laminated film

Details Process for producing cross-linked laminated film Process for producing cross-linked laminated film

1989-08-01

1991-01-15

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264512, 264514, 264173, 2642893, 264342R, B29C 7104

Patent

active

049851888

ABSTRACT:
A process for producing a cross-linked laminated film by:
(a) forming a laminate by disposing at least one polyolefin resin layer (II) on one side of an oxygen barrier core layer (I); and then disposing an adhesive shrinkable resin layer (III) and sealing resin layer (IV) in this order on the other side of said core layer (I),
(b) irradiating an electron beam to laminate from the surface side of the layer (II) so as to cause the layer (II) to have a gel fraction x at the outside portion of 25-70% by weight, a gel fraction y at the inner portion contacting the side of the layer (I) of 40% by weight or less, and a gradient of gel fraction represented by y/x of 0.6 or less, without cross-linking the layer (IV), and
(c) stretching the thus cross-linked laminate.

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