| 摘要 |
PROBLEM TO BE SOLVED: To prevent troubles that a molding of a resin composition including red phosphorus as a flame retardant corrodes metals such as a metallic contact, etc.SOLUTION: This flame-retardant thermoplastic resin composition includes 1-30 pts.mass of red phosphorus, 0.1-10 pts.mass of magnesium oxide and 0.05-5 pts.mass of a fluororesin based on 100 pts.mass of a thermoplastic resin. When the flame-retardant thermoplastic resin composition is injection molded at a cylinder temperature of 295°C into a flat plate (100 mm×100 mm×2 mm), the content of free phosphoric acid in the plate is 2 ppm or less. |
