| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel method of producing a polyamide-imide which is excellent in heat resistance and transparency and has a norbornane skeleton. <P>SOLUTION: The method of producing a polyamide-imide containing a norbornane skeleton includes a step of reacting norbornanetricarboxylic acid halide derivative represented by a general formula (I) (in the formula, R<SP POS="POST">1</SP>indicates chlorine or bromine) with a diamine compound in a polar solvent. <P>COPYRIGHT: (C)2013,JPO&INPIT |
