| 摘要 |
Novel haloalkyl polyphosphates are prepared by reacting at elevated temperatures a halosubstituted alkyl phosphate such as, for example, tris (2-chloroethyl) phosphate, and an unsubstituted trialkyl phosphate such as, for example, triethyl phosphate. The character of the mixture of the thermal condensates formed can be influenced by the ratio of reactants employed and the extent to which the reaction is allowed to proceed. The resulting reaction products possess superior flame retardant efficiency and impart durable flame resistance when incorporated into flexible urethane foams.
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