Method for producing metalized fibrous composite sheet with olefin coating

摘要

A composite sheet comprises a substrate and a multi-layer coating on its outer surface, the coating comprising a metal layer and an outer polymeric layer formed from a precursor comprising a polymerizable composition that includes an olefin group and a moisture curable group, such as an isocyanate or silane group. The function of the polymeric layer includes protecting the metal layer from corrosion. A production process for the composite sheet includes depositing the precursor and exposing it to both beam radiation and moisture, which respectively promote polymerization and curing at different sites of the precursor. The amenability of the isocyanate or silane functionality to moisture-promoted coupling promotes substantially full conversion and curing of the precursor, even of portions of the substrate that are geometrically shadowed from incident beam radiation.

主权项

1. A process for manufacturing a composite sheet comprising:
providing a substrate having a first outer surface and an opposing second outer surface; metalizing the first outer surface of the substrate to form thereon a metal layer; depositing on the metal layer a precursor of an outer polymeric coating layer to form a precursor film, the precursor comprising a dual-function composition including an olefin group and a moisture curable group; and treating the precursor to form the outer polymeric coating layer, the treating comprising:
creating free radicals in the precursor to induce polymerization of at least a portion thereof; andexposing the precursor film to water vapor.