发明名称 |
Fuel compositions and additives therefor |
摘要 |
<p>A highly effective fuel additive composition for control of intake valve deposits is described. It comprises (a) a gasoline-soluble Mannich reaction product of (i) a high molecular weight alkyl-substituted phenol wherein the alkyl group has a number average molecular weight of from about 600 to about 3000, (ii) amine, and (iii) aldehyde; and (b) a gasoline-soluble poly(oxyalkylene) compound having a viscosity in its undiluted state of at least about 70 cSt at 40 DEG C and at least about 13 cSt at 100 DEG C. These components are proportioned such that there are from about 0.2 to about 5 parts by weight of active Mannich base in (a) per part by weight of (b).</p> |
申请公布号 |
EP0647700(B1) |
申请公布日期 |
1999.11.24 |
申请号 |
EP19940307322 |
申请日期 |
1994.10.05 |
申请人 |
ETHYL CORPORATION |
发明人 |
MALFER, DENNIS J.;CUNNINGHAM, LAWRENCE J. |
分类号 |
C10L1/192;C10L1/14;C10L1/16;C10L1/18;C10L1/198;C10L1/22;C10L1/222;C10L1/24;C10L10/00;F02B1/04;(IPC1-7):C10L1/14 |
主分类号 |
C10L1/192 |
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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