abstract |
A polyamide-imide copolymer and a transparent film using the same, Polyamide-imide film using 2,5-furandicarbonyl dichloride (FDCACl) alone or mixing TPC (Terephthaloyl chloride; 1,4-benzenedicarbonyl chloride) together at a specific molar ratio When manufacturing, there is an effect that the yellowing degree (YI) is improved compared to the conventional polyamide-imide film. |