FLAME RETARDED POLYMER COMPOSITIONS

摘要

The invention relates to a polymeric composition comprising at least one engineering polymer and at least one phosphate ester flame retardant additive which is characterised in that the phosphate ester is a mixed tri (tertiary butylphenyl) phosphate ester which comprises from 1 to 45 % by weight of tri (tertiary butylphenyl) phosphate; from 10 to 55 % by weight of di (tertiary butylphenyl) mono phenyl phosphate; from 10 to 60 % by weight of mono (tertiary butylphenyl) diphenyl phosphate and less than 10 % by weight of triphenyl phosphate.