发明名称 |
ALKENYL-SUBSTITUTED DICARBOXYLIC ACID OR ANHYDRIDE ESTER DERIVATIVES |
摘要 |
Alkenyl-substituted dicarboxylic acid or anhydride ester derivatives, useful as dispersant additives in lubricating oil compositions, having an alkenyl group derived from an atactic propylene oligomer substantially of formula (I), where n is in the range 15 to 120, having number average molecular weight (Mn) in the range 700 to 5000, and molar ratio dicarboxylic acid or anhydride moieties:atactic propylene oligomer in the range 1:1 to 2:1, and having an ester group derived from a polyol; a process for their preparation; and lubricating oil compositions and concentrates containing them.
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申请公布号 |
CA2230786(A1) |
申请公布日期 |
1997.03.13 |
申请号 |
CA19962230786 |
申请日期 |
1996.09.06 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
CLARK, MICHAEL THOMAS;VERKOUW, HENDRIK TIJMEN |
分类号 |
C07C55/10;C07C57/13;C07C57/145;C07C69/40;C07C69/593;C07C69/60;C08F8/14;C08F8/46;C08F110/06;C10M145/22;C10N20/00;(IPC1-7):C07C69/593;C07C67/03;C07H13/04;C10M145/16 |
主分类号 |
C07C55/10 |
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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