Arkema France

Atofina

Philippe Annoot

Jean-Luc Dubois

Patrice Robert

Jean-Michel Pierrot

Martin Baumert

Ornella Zovi

Bernard Pees

Bernard Berthe

A process for synthesizing a product of formula Br&#x2014;(CH)&#x2014;R by hydrobromination, by reacting: a reagent of formula (I) R1-CH&#x2550;CH&#x2014;R2 in which R1 and R2, identical or different, are chosen from H or an alkyl radical comprising 1 to 30 carbon atoms, which is saturated or unsaturated, linear or branched, functionalized or non-functionalized, with a molar excess of HBr relative to the reagent of formula (I), in the presence of a radical initiator, and optionally in the presence of at least one solvent, said process including a step A of mixing at least reagent I and the HBr, each of the latter arriving in the form of a flow of liquid into a mixing device dA.

Hydrobromination method

The invention concerns a crosslinkable composition of functionalized polyolefin powder comprising a functionalized polyolefin (A) having an MFI of at least 20 (190&deg; C. 2.16 kg), a product (B) having a function for crosslinking (A), the composition having a grain size distribution between 100 and 400 &mgr;m. Said composition is useful for slush moulding, for thermoforming sheets or injection on an insert.

Crosslinkable compositions of functionalized polyolefin powders

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Saint Aubin le Guichard, France

Philippe Annoot