| 摘要 |
PURPOSE:To obtain the subject flame-retardant composition having excellent flame-retardance, mechanical properties, electrical properties, moldability and heat-resistance, free from bleed-out tendency and emitting little gas in use by compounding a halogenated phenoxy resin and an antimony compound to a polyester. CONSTITUTION:The objective resin contains (A) 100 pts.wt. of an aromatic polyester, (B) 1-50 pts.wt. of a halogenated phenoxy resin having the recurring unit of formula (X is Cl or Br; Y is 1-10C alkylene, alkylidene, cycloalkane, carbonyl, -O-, -S- or -SO2-) and (C) 0.1-30 pts.wt. of an antimony compound. The halogenated phenoxy resin of the component B has a number-average polymerization degree (Pn) of 6-50, a weight-average polymerization degree (Pw) of 15-150 and a ratio of the weight-average polymerization degree to the number-average polymerization degree (Pw/Pn) of 1.25-5.0. The number-average particle diameter of the halogenated phenoxy resin is 0.05-2mum. |
