Patent ID: 6130282
Filing Date: 2000-10-10
Classification: C08K

Abstract:
A flame retardant resin composition which consists essentially of:(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) respectively:(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 m.sup.2 /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.