Flame retardant resin composition

Details Flame retardant resin composition Flame retardant resin composition

1998-09-29

2000-10-10

Yoon, Tae

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524437, 524216, 524414, 524495, 523205, C08K 322, C08K 332, C08K 304

Patent

active

061302821

ABSTRACT:
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 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. 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.

REFERENCES:
patent: 4147690 (1979-04-01), Rich

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