Alan Michael Aaronson

Oligomeric Phosphate Esters as Flame Retardants

Abstract. In this paper, some Akzo Nobel contributions to organophosphorus flame retardant chemistry are discussed in the context of some current and future issues affecting various end use applications. Current issues of greatest concern include toxicity, environmental impact and performance characteristics such as fogging in automotive applications. Future concerns will no doubt focus on environmental issues and recycling as well as new indices of fire performance such as rate-of-heat release. One approach to the right molecules is through oligomeric phosphate esters. Specifically, those that are formed by the reaction of oligomeric pyrophosphates with cyclic ethers.