| abstract |
Disclosed is a flame-retardant liquid crystal polyester composition, which comprises (A) 100 wt. parts of a liquid crystal polyester comprising structural units of the following formulae (I), (II), (III) and (IV), in which the amount of units (I) and (II) is 77 to 95 mole% based on the sum of units (I), (II) and (III), the amount of units (III) is 23 to 5 mole% based on the sum of units (I), (II) and (III), and the units (I)/units (II) molar ratio is 75/25 - 95/5 and (B) 0.5 to 30 wt. parts of a polymeric flame retardant having an average dispersed particle diameter not larger than 2.5 µm:n (̵O-R₁-O)̵ (II), n(̵OCH₂CH₂-O)̵ (III), and n(̵CO-R₂-CO)̵ (IV) nwherein R₁ and R₂ are specific aromatic residues. n This composition gives a molded article having a superior flame retardancy, heat resistance, mechanical properties, and appearance. |