Azoxy compound having use in a process for preparing foamed structures

摘要

An acid sensitive, mono- or di- azoxy compound is reacted with an acidulous acidic polymerizable medium to form a cellular polymeric structure. An unsymmetrical azoxy compound is also provided having the formula <IMAGE> where n is 1 or 2 and R8 is movalent when n is 1 and divalent when n is 2.