| abstract |
The present invention relates to a flame-retardant article comprising a polyolefin substrate having additives incorporated therein, the additives comprising: a specific phosphonate ester of formula (1), a synergist comprising an N-alkoxy hindered amine, and a melamine cyanurate. The present invention also relates to corresponding flame retardant compositions, and the use of these for improving the flame retardency of polyolefins. |