发明名称 |
BENZINZUSAMMENSETZUNGEN |
摘要 |
The invention provides gasoline compositions and gasoline additive concentrates containing an additive, useful in reducing intake valve deposits, obtained by reacting at least one amine, with a polyalkenyl derivative of a monoethylenically unsaturated C4-C10 dicarboxylic acid material in which the ratio of dicarboxylic acid moieties per polyalkenyl chain is not greater than 1.2:1 and the number average molecular weight (Mn) of the polyalkenyl chain is in the range from 1600 to 5000. |
申请公布号 |
AT153052(T) |
申请公布日期 |
1997.05.15 |
申请号 |
AT19930202616T |
申请日期 |
1993.09.07 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
VAN ES, CORNELIS;GRAHAM, JOSEPH |
分类号 |
C10L1/224;C08F8/32;C10L;C10L1/14;C10L1/16;C10L1/18;C10L1/22;C10L1/232;C10L1/2383;C10L1/30;C10L10/00 |
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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