Process for the manufacture of brominated products of...

Details Process for the manufacture of brominated products of... Process for the manufacture of brominated products of...

C - Chemistry, Metallurgy

08

F

402/573

C08F 8/20 (2006.01) C08F 8/22 (2006.01) C08F 112/08 (2006.01)

Patent

CA 1124947

Case 3-12341/CGM 229/1+2 Process for the manufacture of brominated products of polystyrene Abstract of the Disclosure The direct bromination at low temperature, in a partially halogenated hydrocarbon as solvent and in the presence of a divalent and/or trivalent iron salt or iron oxide as catalyst, of polystyrene which has been obtained by radically initiated polymerisation, results in thermally stable, soluble and uncrosslinked polystyrene products with a high bromine content and at most an insignificant natural colour. These brominated polystyrenes are useful in particular as flame retardants for plastics.

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