Patent ID: 6921783

Claim:
A flame retardant polyolefin resin composition comprising (A) 100 parts by mass of a polyolefin resin, (B) 10 to 60 parts by mass of melamine polyphosphate and (C) 10 to 60 parts by mass of a carbonizing agent, wherein the compounding mass ratio (B)/(C) of the component (B) to the component (C) is in a range from 0.5 to 4.5 and the ratios between the area of a peak a detected in a range from +5 to −5 ppm, the area of a peak b detected in a range from −5 to −17 ppm and the area of a peak c detected in a range from −17 to −32 ppm fulfill the following relationships (I) and (II) in a solid NMR spectrum obtained by a DD-MAS method using, as the observation nucleus, phosphorus of the melamine polyphosphate: (I) area of peak b/area of peak c≧2; and (II) area of peak a/area of peak b+area of peak c≦0.1.