发明名称 |
Highly grafted, multi-functional olefin copolymer VI modifiers |
摘要 |
A novel additive comprising a highly grafted, multi-functional olefin copolymer comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C3 to C23 alpha-monoolefin and, optionally, a polyene, wherein the copolymer of ethylene and at least one C3 to C23 alpha-monoolefin has grafted thereon from 0.3 to 0.75 carboxylic groups per 1000 number average molecular weight units of olefin copolymer and wherein the olefin copolymer has a number average molecular weight of between 20,000 and 150,000, and lubricating oil concentrates and compositions containing the same are provided.
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申请公布号 |
US6107257(A) |
申请公布日期 |
2000.08.22 |
申请号 |
US19970987596 |
申请日期 |
1997.12.09 |
申请人 |
ETHYL CORPORATION;DSM COPOLYMER INC |
发明人 |
VALCHO, JOSEPH J.;REES, MARK;GROWCOTT, PETER;DEVLIN, MARK THOMAS;OLIVIER, ERROL J. |
分类号 |
C10L1/22;C08F8/32;C08F255/00;C08F255/04;C10L1/2383;C10L10/08;C10M133/52;C10M133/58;C10M143/00;C10M149/02;C10M149/10;C10N30/02;C10N40/25;(IPC1-7):C10M145/00;C10M149/00 |
主分类号 |
C10L1/22 |
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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