| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polyimide resin exhibiting improved melt stability, having decomposition resistance under an ultimate processing treatment condition. SOLUTION: This thermoplastic resin composition having excellent melt flow stability is characterized in that the composition comprises (a) a polyimide resin and (b) a phosphorus-containing stabilizer, (a) the polyimide resin contains a structural unit of formula (I) and (b) the phosphorus-containing stabilizer has 10-100 wt.% of the initial weight remaining by a thermogravimetric analysis (nitrogen atmosphere, 20 [ deg.C/minute] rate of temperature increase, 25-300 deg.C measurement range). Consequently the composition exhibits extremely improved melt stability and thermal decomposition resistance.
|
