a brominated aromatic composition and a butyl substituted phenyl phosphate application_number US 58057409 A description advantages characteristics and properties of the disclosed compositions may be better understood from the following illustrative and non limiting description of embodiments the invention relates to a flame retardant comprising a combination of components suitable for reducing the flammability of combustible polymers such as alkyl substituted triphenyl phosphates and halogen substituted aromatic compounds the invention further relates to a flame retarded flexible polyurethane foam composition and a method of flame retarding flexible polyurethane foam the composition comprises an otherwise flammable flexible polyurethane foam and a two component flame retardant additive component a is an alkyl substituted phenyl phosphate these are represented by the general structure where each r is independently a linear or branched c 4 to c 6 alkyl group where m is an integer from 1 to 3 but m on at least one phenyl ring is 1 or more examples of the more preferred structure iv materials include a preferred embodiment includes r as a butyl substituent more preferably i butyl or t butyl preferred component a materials are butylated triphenyl phosphates it is to be understood that these include pure compounds such as 4 butylphenyl diphenyl phosphate.