| 摘要 |
<p>This invention is directed to a process for preparing a coating, an unsupported film or a sheet of a polymer of at least one cycloolefin monomer containing a norbornene group in crosslinked or uncrosslinked state wherein in the crosslinked state, the polymer contains an effective amount of a crosslinker selected from photoinitiators polyfunctional monomers, organic peroxides, azo compounds, and mixtures thereof. In crosslinked state, the polymer is insoluble and preferably non-tacky when immersed for two minutes in 1,1,1-trichloroethane and is dimensionally stable when subjected to temperatures above its softening point. Such products, in crosslinked or uncrosslinked state, are especially useful in electrical, electronic, microwave and electro-optical applications.</p> |
