Multilayer structure with intercrosslinked polymer layers

Details Multilayer structure with intercrosslinked polymer layers Multilayer structure with intercrosslinked polymer layers

2006-02-14

2006-02-14

Haran, John T. (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S275500, C264S494000, C264S171110, C264S173110

Reexamination Certificate

active

06998007

ABSTRACT:
Disclosed is an intercrosslinked multilayer polymeric article having at least one thermoplastic polymer layer intercrosslinked by UV radiation at the interface with a core layer of a crosslinkable polymer. The selection of the thermoplastic polymer and the crosslinkable polymer is such that a coextruded composite product of these materials has poor interlayer adhesion prior to radiation treatment. However, the interfacial intercrosslinking provides superior bonding between the layers. The same UV radiation for intercrosslinking typically can also cure the crosslinkable polymer to give the multilayer article excellent structural integrity. Also disclosed is a method for preparing an intercrosslinked multilayer polymeric article.

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