Polymeric protective layer against oxygen inhibition in the free-radical cross-linking of liquid acrylates or methacrylates and method for manufacturing the same

摘要

Polymeric surface-protective layer on a sandwich structure comprising a solid substrate, a liquid coating layer based on acrylate and/or methacrylate, and a thin solid polymer layer produced from the liquid coating layer by surface cross-linking using VUV radiation, is claimed. The liquid coating layer remaining under the protective polymeric layer is cross-linked in the presence of polymeric protective layer. The UV cross-linking of the liquid coating layer remaining in the sandwich structure is carried out with delayed time regardless of the production of the polymeric protective layer. Polymeric surface-protective layer on a sandwich structure comprising a solid substrate, a liquid coating layer based on acrylate and/or methacrylate, and a thin solid polymer layer produced from the liquid coating layer by surface cross-linking using VUV radiation, is claimed. The liquid coating layer remaining under the protective polymeric layer is cross-linked in the presence of polymeric protective layer without disturbing oxygen inhibition using UV irradiation in air. The UV cross-linking of the liquid coating layer remaining in the sandwich structure is carried out with delayed time regardless of the production of the polymeric protective layer. An independent claim is also included for producing the polymeric protective surface layer on the sandwich structure, comprising subjecting the surface polymer layer to argon or xenon vacuum ultraviolet excimer radiators at emission wavelengths of 126-172 nm.