Coextruded structures

Details Coextruded structures Coextruded structures

1990-08-15

1992-01-14

Thurlow, Jeffery

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

264514, 264171, 428 367, 428412, 428518, B32B 2708

Patent

active

050809610

ABSTRACT:
The present invention is directed to a multilayered coextruded thermoplastic structure useful as a packaging material having 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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Materials and Composites for High Temperature Barrier Packaging, by L. E. Baccaro in Book 2 of 1984 Polymers, Laminations and Coatings Conference.
A Comparison of Barrier Plastics for Packaging, The packaging Composites of EVOH and PVDC, by M. Boysen, Rheinberg, Kunststoffe 77 (1987) 5, pp. 522/525.

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