| abstract |
Provided is a film comprising 70 to 99 weight percent of an amorphous, high temperature copolycarbonate having a glass transition temperature of at least 170°C, preferably 170 to 230°C, more preferably 175 to 200°C, and 1 to 30 The weight percent cyclic olefin copolymer, each based on the total weight of the polymer in the film; wherein the film has a dielectric breakdown strength at 150°C of greater than 700 volts/micron, preferably 700 to 1250 volts/micron. Methods for making films and articles comprising the films are provided. |