发明名称 |
Process for making polyalkylene/maleic anhydride copolymer |
摘要 |
A process is provided for preparing a mixture of (1) a copolymer of a polyalkene and an unsaturated acidic reagent and (2) a polyalkenyl derivative of an unsaturated acidic reagent, said process comprising(a) copolymerizing (1) a polyalkene containing alkylvinylidene isomer and non-alkylvinylidene isomers and (2) an unsaturated acidic reagent under polymerization conditions in the presence of a free radical initiator; and(b) reacting the product of step (a) with an unsaturated acidic reagent at elevated temperature in the presence of a strong acid.The product of the process can be used to make polysuccinimides that are useful in lubricating oil compositions.
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申请公布号 |
US6617396(B1) |
申请公布日期 |
2003.09.09 |
申请号 |
US20000706271 |
申请日期 |
2000.11.03 |
申请人 |
CHEVRON ORONITE CO |
发明人 |
HARRISON JAMES J;RUHE JR WILLIAM R |
分类号 |
C10L1/224;C08F8/32;C08F8/42;C08F8/46;C08G63/12;C08G63/91;C10L10/08;C10L10/18;C10M133/56;C10M145/22;C10N30/04;C10N40/08;C10N40/25;(IPC1-7):C08F8/00;C10M107/00 |
主分类号 |
C10L1/224 |
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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