. . . . "Advantageously, the PSA of the novel tape adheres strongly to cardboard, plastic substrates, and other materials commonly used in microwave food packages, including low-energy non-polar substrates such as poly(4-methylpent-1-ene), and remains strongly adhered at temperatures from -20??? C. to 200??? C. and even higher temperatures to which a microwave active tape can be heated in a microwave oven," .