Increased regrind usage in coextruded structures

Details Increased regrind usage in coextruded structures Increased regrind usage in coextruded structures

B - Operations, Transporting

32

B

18/764

B32B 27/08 (2006.01) B29B 17/00 (2006.01) B32B 27/00 (2006.01)

Patent

CA 1326338

A B S T R A C T INCREASED REGRIND USAGE IN COEXTRUDED STRUCTURES A laminate, a method for making the laminate and articles formed from the laminate are disclosed. The laminate comprises an outer layer, an optional adhesive layer, an inner layer, an intermediate regrind layer formed of a blend of the materials from which the other layers are formed, and, interposed between the outer layer and the intermediate regrind layer, there is a buffer layer which is formed from a blend of the materials from which the outer layer and the inter- mediate regrind layer are formed and which comprises at least about 5% of the material of the intermediate regrind layer. The outer layer is preferably poly- propylene and the inner layer is preferably an ethylene vinyl alcohol copolymer.

584836

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