发明名称 |
Mannich dispersant viscosity index improver, method for improving its storage stability, its use and lubricants containing same. |
摘要 |
Improved dispersant and VI-improving Mannich composition having reduced susceptibility to viscosity increase during storage, which composition comprises a physical blend prepared by admixing a phenolic compound with a Mannich condensation product obtained from the Mannich reaction of an oxidized polymer, an amine and a formaldehyde-yielding reagent. A method for reducing the tendency of a dispersant and VI-improving Mannich condensation product to increase viscosity during storage by admixing a phenolic compound. Use of the compositions as lubricant additives; and lubricant compositions containing them. |
申请公布号 |
EP0285088(A2) |
申请公布日期 |
1988.10.05 |
申请号 |
EP19880105061 |
申请日期 |
1988.03.29 |
申请人 |
AMOCO CORPORATION |
发明人 |
SONG, YOON SOO;BASALAY, ROBERT JOSEPH |
分类号 |
C08F8/32;C10M159/16;C10M163/00;C10N20/04;C10N30/02;C10N30/04;C10N30/10;C10N40/00;C10N40/25;C10N60/04 |
主分类号 |
C08F8/32 |
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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