发明名称 |
EXTRUSION PROCESS FOR PREPARING IMPROVED BROMINATED BUTYL RUBBER |
摘要 |
<p>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 mixture, 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 substantially free of acid scavengers, with the brominating agent at elevated temperatures the bromination reaction being carried out in an acid atmosphere, thereby producing a polymer having a substantial fraction of the bromine in the primary allylic position.</p> |
申请公布号 |
CA1244999(A) |
申请公布日期 |
1988.11.15 |
申请号 |
CA19850491856 |
申请日期 |
1985.09.30 |
申请人 |
EXXON RESEARCH AND ENGINEERING COMPANY |
发明人 |
KOWALSKI, RONALD C.;DAVIS, WILLAM M.;NEWMAN, NEIL F.;FOROULIS, ZISIS A.;BALDWIN, FRANCIS P. |
分类号 |
C08F8/00;C08C19/12;C08F8/20;(IPC1-7):C08F8/20;C08F8/22 |
主分类号 |
C08F8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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