MANUFACTURE OF POLYMER FILM

摘要

This invention relates to processes and techniques for forming either coatings or self-supporting films from polymeric powders which melt at high temperatures (>150 DEG C.) and cannot be made to fuse with the application of high temperatures. In particular, polyparabanic acid films and coatings are prepared from polyparabanic acid powders, utilizing vapors and mists of certain aprotic dipolar solvents.