| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polyamide composition slightly causing a rise in filter back pressure and occurrence of foreign matter during molding and having excellent heat stability during drying and molding, not deteriorating a color tone during mixing and using a recycled product, slightly causing foreign matter such as a gel-like substance and having an excellent productivity during molding, a polyamide sheetlike material comprising the same and a polyamide oriented film. SOLUTION: The polyamide composition comprises mainly 100 pts.wt. of a partial aromatic polyamide and 0.5-100 pts.wt. of an aliphatic polyamide and has a total residual phosphorus atom content (PC) in the partial aromatic polyamide of≥10 ppm and a phosphorus atom content (P4) of≤150 ppm. P4 is a phosphorus atom content derived from a phosphorus compound detected as a pyrophosphate structure when the partial aromatic polyamide is dissolved in a solvent for<SP>31</SP>P-NMR measurement, mixed with trifluoroacetic acid and a structural analysis is carried out. COPYRIGHT: (C)2008,JPO&INPIT |
