Bromination process

A process is disclosed for preparing a mixture of brominated, non-condensed ring polyaromatics, which process comprises brominating the precursor non-condensed ring polyaromatic in the presence of an AlCl3 catalyst. The mixture has an average bromine number of 6.7 to 7.3 and a hexabromo homolog amou...

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Bibliographische Detailangaben
Hauptverfasser:	HUSSAIN, SAADAT, BRACKENRIDGE, DAVID ROSS
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Beschreibung
Zusammenfassung:	A process is disclosed for preparing a mixture of brominated, non-condensed ring polyaromatics, which process comprises brominating the precursor non-condensed ring polyaromatic in the presence of an AlCl3 catalyst. The mixture has an average bromine number of 6.7 to 7.3 and a hexabromo homolog amount greater than or equal to the sum of the heptabromo and octabromo amounts in the mixture, and it is particularly useful in imparting flame retardancy to ABS formulations and articles made therefrom. The brominated diphenylethane mixtures having an average bromine number of 6.8-7.2 are especially useful in this regard.