Patent ID: 8278375

Claim:
A flame-retardant mixture of components (A), (B) and optionally (C) having the formula: in which: i, j and k are, independently, equal to 1 to 10, R is a linear, branched or cyclic alkyl or alkenyl radical, R 4 is a proton or a linear, branched or cyclic alkyl or alkenyl radical, R 2 is a linear, branched or cyclic alkyl or alkenyl radical or the cyclic phosphonate (I): in which i, j, k, R and R4 are as defined above, R 1 is: in which R 2 , R 4 , R, i, j and k are as defined above; in which R 2 , R 4 , R, i, j and k are as defined above; and in which: R is a linear, branched or cyclic alkyl or alkenyl radical as defined above, and R 5 is a linear, branched or cyclic alkyl or alkenyl radical.