Coextruded structures

Details Coextruded structures Coextruded structures

B - Operations, Transporting

29

C

18/783

B29C 47/06 (2006.01) B32B 27/36 (2006.01)

Patent

CA 2009491

Mo3139 PC-216 COEXTRUDED STRUCTURES ABSTRACT OF THE DISCLOSURE The present invention is directed to a novel multilayered coextruded thermoplastic structure useful as a packaging material comprising a barrier layer and a polycarbonate layer adjacent thereto said structure being characterized in the absence of an adhesive layer therefrom. The polycarbonate resin is characterized by its low molecular weight. In a preferred embodiment the polycarbonate is further characterized by its special chain terminating agent. The invention is also directed to an improvement in the coextrusion process of a multilayered coextruded thermoplastic structure comprising the absence of an adhesive layer between the barrier layer and the polycarbonate layer thereof. Mo-3139

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