Tetrabromoxylylene diacrylates and substituted acrylates

Details Tetrabromoxylylene diacrylates and substituted acrylates Tetrabromoxylylene diacrylates and substituted acrylates

C - Chemistry, Metallurgy

07

C

260/481.8

C07C 69/54 (2006.01) C07C 69/653 (2006.01) C08K 5/103 (2006.01)

Patent

CA 1080250

ABSTRACT OF THE DISCLOSURE: Tetrahaloxylylene diesters having the general formulae: Image (I) Image (II) wherein R represents hydrogen or a methyl group and X is bromine or chlorine, with the proviso that, when X is chlorine, there is no more than one chlorine atom per molecule, are obtained by converting acrylic acid or methacrylic acid in a polar solvent into an alkali salt thereof, and reacting m- or o- tetrabromo- xylylene dichloride with a stoichiometric excess of from 1 to 10 mole % of the alkali salt obtained, in the presence of a polymerisation inhibitor at 50 to 150°C. These diesters are particularly useful as reactive crosslinkers for unsaturated compounds and fire-retarding additives to polymers.

262441

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