| 摘要 |
<p>According to the present invention there are obtained improved laminate structures comprising a substrate layer of a thermoplastic resin and a layer of crosslinked carbonate polymer on one or more surface areas. These structures have an excellent combination of properties, particularly in the areas of abrasion resistance, adhesion of the layers, weatherability (resistance to UV radiation, humidity, temperature), solvent resistance, hardness, impact strength, color, thermoformability, ignition resistance and recyclability of the article and scrap formed. In a preferred embodiment, the crosslinking in the crosslinked carbonate polymer layer is provided by crosslinking moieties, preferably arylcyclobutene moieties, which are terminally located relative to the precrosslinked carbonate polymer molecule chains. In general, the crosslinked carbonate polymer layer is required to have a sufficiently high degree of crosslinking and to have sufficiently stable crosslinks to provide the necessary abrasion resistance and other properties. The crosslink density of the crosslinked carbonate polymer layer should be such that the percent increase in the polymer Tg after crosslinking (% DELTA Tg) is greater than 17%.</p> |
