Patent ID: 7511383

Claim:
A flame retardant comprising an inorganic porous fine particle selected from the group consisting of silicon dioxide, calcium silicate, apatite, alumina, and zeolite, each having a mean particle size of from 0.5 to 20 Î¼m and a specific surface area of from 100 to 600 m 2 /g, a phosphazene compound represented by the following average compositional formula (1) wherein X is selected from the group consisting of a single bond, CH 2 , C(CH 3 ) 2 , SO 2 , S, O, and O(CO)O, n is an integer of from 3 to 1000, d and e are numbers with 2d+e=2n, said phosphazene compound being supported on said inorganic porous fine particle, and a resin layer coating said inorganic porous fine particle with the phosphazene compound supported thereon, said resin thermally decomposing to lose weight by 10% at a temperature of from 300Â° C. to 500Â° C. as measured by thermogravimetry in the air at a heating rate of 10Â° C./min.