发明名称 |
A process for producing polyisobutenes |
摘要 |
<p>This invention relates to a method of producing polyisobutenes from a feedstock comprising a mixture of C4 hydrocarbons and containing isobutene and at least 5% by weight of 1-butene using a cationic polymerisation catalyst, characterised in that prior to polymerisation, the feedstock is subjected to a pre-treatment step in order to reduce the 1-butene content thereof to a level which is at least 20% lower than that of the 1-butene content in the initial mixed C4 hydrocarbon feedstock prior to the pre-treatment thereof and the polyisobutene so formed is (a) very high in its vinylidene group content and (b) substantially free of halogen.</p> |
申请公布号 |
IN190180(B) |
申请公布日期 |
2003.06.28 |
申请号 |
IN1995DE35119 |
申请日期 |
1995.03.02 |
申请人 |
BP CHEMICALS LIMITED |
发明人 |
KERR JAMES MAXWELL;MCMAHON JOHN;SCOTLAND JAMES MANN |
分类号 |
B01J23/44;B01J31/00;C08F4/14;C08F4/28;C08F4/52;C08F10/00;C08F210/08;C08F210/10;(IPC1-7):C07C11/00 |
主分类号 |
B01J23/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|