Abstract: Process for the preparation of tris-(halophenoxy) -1,3,5-triazine of formula I ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 is each a phenoxy substituent having a 0-2 alkyl groups, and 0-2 halo alkyl groups, and has 1-5 halogen atoms which comprises contacting cyanuric acid chloride with alkali phenolate of the formulae R.sub.1 Me, R.sub.2 Me and R.sub.3 Me, wherein Me is alkali metal, and wherein said formulae can be identical or different, in the presence of alkylene diol monoalkyl ether, e.g. methyl or ethyl cellosolve. The ethers are good solvents for the phenolates. The products are used as flame-proofing agents for plastics.

Abstract: A process for preparing a bis-(bromomethyl)-tetrachlorobenzene which comprises contacting a bis-(chloromethyl)-tetrachlorobenzene with a bromide of an element of the first to the third group of the Periodic Table, preferably in a solvent of the bis-(chloromethyl)-tetrachlorobenzene which solvent is a non-solvent for the bis-(bromomethyl)-tetrachlorobenzene being prepared; a stabilized polymeric composition comprising a polymer and a bis-(bromomethyl)-tetrachlorobenzene, preferably containing additionally a compound of antimony or boron.