发明名称 |
MULTIFUNCTIONAL VISCOSITY INDEX IMPROVER |
摘要 |
Oleaginous compositions, particularly lubricating oil compositions, exhibiting improved low temperature viscometric properties containing a viscosity index improving effective amount of a multifunctional viscosity index improver comprised of the reaction products of: (a) an oil soluble ethylene copolymer comprising from about 15 to 90 wt. % ethylene and from about 10 to 85 wt. % of at least one C3 to C28 alpha-olefin, having a number average molecular weight of from about 5,000 to 500,000, grafted with an ethylenically unsaturated carboxylic acid material having 1 or 2 acid or anhydride moieties; (b) an organic polyamine having at least two reactive amino groups selected from primary and secondary amine groups, or a polyol; and (c) poly-n-butene substituted dicarboxylic acid material, wherein said poly-n-butene has a number average molecular weight of from about 300 to about 3,000.
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申请公布号 |
CA2001656(A1) |
申请公布日期 |
1990.05.14 |
申请号 |
CA19892001656 |
申请日期 |
1989.10.27 |
申请人 |
CHEN, FRANK J.;CHUNG, DAVID Y. |
发明人 |
CHEN, FRANK J.;CHUNG, DAVID Y. |
分类号 |
C10M159/12;C08F255/00;C08L51/08;C09K3/00;C10L1/234;C10L10/14;C10M143/02;C10M145/10;C10M149/06;C10N20/04;C10N30/02;C10N70/00;(IPC1-7):C08L33/02;C10M119/02;C08L51/06 |
主分类号 |
C10M159/12 |
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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