| 摘要 |
PROBLEM TO BE SOLVED: To obtain a styrenic fire-resistant resin composition having excellent fire resistance and excellent in a balance of heat resistance, impact resistance and fluidity by blending specific two kinds of halogen-based fire-resistant agents, a fire-resistant auxiliary and a small amount of polytetrafluoroethylene to a styrenic resin. SOLUTION: This resin is composed of (A) 100 pts.wt. of a styrenic resin, (B) 1-22 pts.wt. of a halogen-containing triazine compound of formula I (R1 -R3 are each H, an alkyl, a halogenated alkyl, phenoxyl or halogenated phenoxyl), (C) 1-18 pts.wt. of a polyhalogenated diphenylalkane of formula II [X is Br or Cl; (l) and (m) are each an integer of 0-5, excepting (l) and (m) are simultaneously 0; R is Cn H2n ((n) is 1-10)] and (D) 1-10 pts.wt. of a polyhalogenated antimony trioxide, and an amount of (the component B + the component C) is 15-22 pts.wt. Preferably, (E) 0.01-0.5 pt.wt. of polytetrafluoroethylene is further added and the amount of (the component B + the component C) is made to be 12-20 pts.wt. |
