Coextruded structures

Details Coextruded structures Coextruded structures

1988-10-24

1990-11-13

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

2641761, 26433121, B29C 4706

Patent

active

049700413

ABSTRACT:
The present invention is directed to a, multilayered coextruded thermoplastic structure useful as a packaging material including a barrier layer of polyvinylidene chloride, a polycarbonate layer and an adhesive layer interposed therebetween. The polycarbonate resin of the invention is characterized by its low molecular weight. In a preferred embodiment the polycarbonate is further characterized by its special chain terminating agent.

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