C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/327, 402/453
C08F 8/22 (2006.01) C08F 8/20 (2006.01) C08F 8/32 (2006.01) C08F 8/38 (2006.01) C08F 12/36 (2006.01)
Patent
CA 1149550
ABSTRACT OF THE DISCLOSURE This invention relates to a process for the preparation of high density resins by bromination of particles of crosslinked vinylaromatic copolymers of wither the gel type or the ionic or non- ionic macroporous type. The invention is characterized in that crosslinked vinylaromatic polymer particles which have bee swollen in a solvent are contacted with bromine or a bromine releasing agent in the presence of an oxidizing agent.
328534
Boutier Jacques L.
de Koker Jean
Drode Teddy E.a.
Giuliani Marc S.a.
Grammont Paul D.a.
Diamond - Shamrock Corporation
Gowling Lafleur Henderson Llp
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