| 摘要 |
PROBLEM TO BE SOLVED: To obtain a flame-retarded resin composition having high flame retardancy, tracking resistance, heat resistance, mechanical characteristics, and wet heat-resistant characteristics. SOLUTION: This flame-retarded resin composition comprises (A) 100 pts.wt. of polybutylene terephthalate resin, (B) 0.1-100 pts.wt. of a polycarbonate resin, (C) 0.01-30 pts.wt. of red phosphorus having an electric conductivity of 0.1-1,000μS/cm (the electric conductivity of extracted water obtained by adding 100 mL of pure water to 5 g of red phosphorus, subjecting the mixture to an extraction treatment at 121 deg.C for 100 hr, filtering off the red phosphorus, and then diluting the filtrate into 250 mL of the diluted water), and (D) 0.1-50 pts.wt. of one or more metal salts selected from metal sulfates and metal silicates. |
