EPOXY COMPOSITIONS DERIVED FROM TETRABROMO BISPHENOL-A WASTE RESIDUES AND THEIR USE AS FLAME RETARDANTS IN POLYMERS

摘要

According to the present invention there are provided novel flame retardant brominated bisphenol epoxy compositions comprising the reaction product of the residue of the production of tetrabromo-bisphenol A (TBBA) with epichlorohydrin, and a process for the production of such compositions which comprises dissolving such residue in an excess of aqueous alkali, reacting the residue with epichlorohydrin at elevated temperature, neutralizing excess of alkali remaining after the reaction and recovering the brominated epoxy compositions.PPThe compositions thus obtained are useful as flame retardants. There may be optionally incorporated in same compounds such as antimony trioxide.