Irradiation lamination process for air-inhibited polymers

Abstract

Abstract A process for preparing a laminable sheet from a substantially catalyst-free system containing a polymerizable organic unsaturated resin susceptible to free-radical one comprising assembling a film or the like of the resin in contacting substantially coplanar relation with a membrane, and then exposing the resulting assembly while overlying a substrate to high energy radiation. This action cures a depthwise segment of the assembly contiguous to the substrate and provides a nontacky, mar-resistant undersurface to the film while leaving at least the upper exposed surface of the assembly in a relatively tacky, mar-susceptible condition. The latter surface thereby defines an interface of a resulting laminable sheet adapted for subsequent adherence to another lamina. Preferably, the process includes the ultimate step of lamination as well. In this embodiment, the described assembly is first passed through onm treating zone effective to impart mass integrity and thereby define a sheet, and is then passed in juxtaposition with a cooperating lamina through another treating zone effective substantially to complete the cure of the resin and simultaneously laminate the sheet to the cooperating lamina, one of the treating zones comprising exposure to high energy radiation.

Inventors

• 👤 Roger P Hall

Bibliographic Details