发明名称 |
Process for preparing polyalkenylsuccinimides |
摘要 |
The present invention relates to an improved process for preparing polyalkenylsuccinimides having a sediment level less than 0.1 vol % comprising the steps of: (a) preparing a polyalkenyl derivative of an unsaturated acidic reagent by (i) reacting a polyalkylene with an unsaturated acidic reagent in the absence of a strong acid until at least 25% of the polyalkylene is converted to a polyalkenyl derivative of an unsaturated acidic reagent; (ii) continuing the reaction with an excess of the unsaturated acidic reagent in the presence of a strong acid to convert at least some of the unreacted polyalkylene to additional polyalkenyl derivative of an unsaturated acidic reagent; and (iii) removing the unreacted unsaturated acidic reagent; (b) reacting the unfiltered product of step (a) with a polyamine having at least one basic nitrogen atom; (c) diluting the product of step (b); and (d) subsequently filtering the polyalkenylsuccinimide product.
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申请公布号 |
US7091306(B2) |
申请公布日期 |
2006.08.15 |
申请号 |
US20030435432 |
申请日期 |
2003.05.09 |
申请人 |
CHEVRON ORONITE S. A. |
发明人 |
HEDDADJ MOHAMMED;RUHE, JR. WILLIAM R.;SINQUIN GILLES P. |
分类号 |
C07D207/412;C08G69/26;C08F8/00;C08F8/32;C08F8/46;C08G69/02;C08G69/10 |
主分类号 |
C07D207/412 |
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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