FLAME RETARDANT RESIN COMPOSITION

摘要

A flame retardant resin composition comprising (A) 100 parts by weight of a synthetic resin, (B) 20 to 150 parts by weight of magnesium hydroxide particles and (C) 20 to 150 parts by weight of aluminum hydroxide particles, wherein the magnesium hydroxide particles and the aluminum hydroxide particles satisfy the following conditions (i) to (v): (i) the average secondary particle diameter measured by a microtrack method is 0.4 to 4 .mu.m; (ii) the specific surface measured by a BET method is 1 to 15 m2/g; (iii) the total content of an iron compound and a manganese compound is 200 ppm or less in terms of metals (Fe + Mn); (iv) the ratio of the specific surface measured by the BET method to the specific surface measured by a Blaine method is 1 to 4; and (v) the content of a water-soluble sodium salt is 500 ppm or less in terms of metal sodium. The present invention provide a halogen-free flame retardant resin composition which has excellent thermal stability, acid resistance, water-resistant insulating properties, mechanical strength and surface appearance and is economically advantageous, and a molded article therefrom.