发明名称 |
AN ADDITIVE FOR LUBRICATING OILS |
摘要 |
Bi-functional lubricant additives exhibiting dispersant and V.I. improving properties are obtained by the Mannich Condensation of an oxidized long-chain high molecular weight amorphous copolymer of essentially ethylene and propylene having a number average molecular weight of at least about 10,000 and at least 140 pendant methyl groups per 1,000 chain carbon atoms, with a formaldehyde yielding reactant and a primary or secondary amine or polyamine, said reactants being employed in the molar ratio of from about 1:2:2 to about 1:20:20, respectively. |
申请公布号 |
BG25522(A3) |
申请公布日期 |
1978.10.10 |
申请号 |
BG19730029303 |
申请日期 |
1973.07.28 |
申请人 |
STANDARD OIL CO |
发明人 |
CULBERTSON,GEORGE S.;CHIPMAN,GARY R.;KARLL,ROBERT E. |
分类号 |
C08L23/00;C08F8/32;C08F210/18;C08F255/06;C08L61/00;C08L61/20;C08L101/00;C10M149/22;C10M159/12;C10M159/16;C10N20/04;C10N30/02;C10N30/04;C10N40/25 |
主分类号 |
C08L23/00 |
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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