发明名称 |
LUBRICANT CONTAINING DISPERSANT VISCOSITY MODIFIERS |
摘要 |
<p>The disclosed invention relates to a composition comprising a grafted polymer. The polymer comprises a backbone with at least one olefin block and at least one vinyl aromatic block. The polymer is grafted with a pendant carbonyl containing group, the grafting being conducted by halogenating the vinyl aromatic carbon of the vinyl aromatic block and then grafting a carboxylic acid or derivative thereof on the halogenated vinyl aromatic carbon in the presence of an activating agent. The carbonyl containing-group is optionally substituted to provide ester, imide and/or amide functionality. The grafted polymer is useful as a dispersant viscosity modifier in lubricating compositions such as engine oils.</p> |
申请公布号 |
EP2451910(A1) |
申请公布日期 |
2012.05.16 |
申请号 |
EP20100730026 |
申请日期 |
2010.07.06 |
申请人 |
THE LUBRIZOL CORPORATION |
发明人 |
PRICE, DAVID;BARTON, WILLIAM R.S.;SUTTON, MICHAEL R.;DAVIES, MARK C. |
分类号 |
C10M145/00;C08F8/32;C08F8/46;C08F287/00;C10M149/00 |
主分类号 |
C10M145/00 |
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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