C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/460
C08F 8/20 (2006.01) C08F 8/22 (2006.01)
Patent
CA 1244999
ABSTRACT OF THE DISCLOSURE A process for the continuous bromination of butyl rubber polymer by contacting the polymer with a brominating agent in a continuous flow device in which means are provided for disengaging reaction by-products and unreacted halogenating agents from the reaction mix- ture, by deforming and disrupting the brominated polymer surface and injecting a neutralizing agent into the polymer immediately after reaction thereby neutralizing the polymer, comprising contacting a polymer substan- tially free of acid scavengers, with the brominating agent at elevated temperatures the bromination reaction being carried out in an acid atmosphere, thereby produc- ing a polymer having a substantial fraction of the bromine in the primary allylic position.
491856
Baldwin Francis P.
Davis Willam M.
Foroulis Zisis A.
Kowalski Ronald C.
Newman Neil F.
Borden Ladner Gervais Llp
Exxon Research And Engineering Company
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