发明名称 |
IMPROVED 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. |
申请公布号 |
SG137677(A1) |
申请公布日期 |
2007.12.28 |
申请号 |
SG20040024147 |
申请日期 |
2004.05.06 |
申请人 |
CHEVRON ORONITE COMPANY LLC;CHEVRON ORONITE S.A.;TEXACO DEVELOPMENT CORPORATION |
发明人 |
HEDDADJ MOHAMED;RUHE WILLIAM;SINQUIN GILLES |
分类号 |
C07D207/412;C08F8/00;C08F8/32;C08F8/46 |
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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