| 摘要 |
<p>The present invention includes a multicomponent structure comprising at leas t two components having a tie layer or adhesive layer directly between them, t he tie layer comprising at least one olefin unsaturated ester copolymer and at least one photoinitiator and optionally a crosslinking enhancer. The tie lay er is preferably irradiated with sufficient actinic radiation to result in increased interlayer adhesion strength between the two components as compare d with the interlayer adhesion strength before treatment with the actinic radiation or between the components having a tie layer of the same compositi on except without the added photoinitiator or crosslinking enhancer. Without th e photoinitiator, optionally crosslinking enhancer, and radiation the interlay er adhesion of the components is preferably less than 55 N/m. At least one of t he components (first component or layer) preferably comprises a halopolymer, mo re preferably vinylidene chloride polymer, most preferably at least a majority of a vinyl idene chloride polymer. In another embodiment, at least one componen t exhibits interlayer adhesion strength similar to vinylidene chloride polymer s. The structure optionally is or comprises such structures as a multilayer fil m, bag, or package, a lined or composite pipe, or other structure having more than one component. The tie layer is advantageously irradiated with an amoun t of UV light effective to increase the adhesion strength between the first an d second components.</p> |
