| 发明名称 |
VISCOSITY INDEX IMPROVER |
| 摘要 |
Degraded molecular weight copolymers of ethylene alpha-olefin are provided. The ethylene alpha-olefin copolymers, before degradation, are characterized by having a narrow molecular weight distribution and are comprised of intramolecularly heterogeneous and intermolecularly homogeneous copolymer chains. The degraded copolymers are useful as viscosity index improvers for oils. |
| 申请公布号 |
CA2027372(A1) |
申请公布日期 |
1991.04.13 |
| 申请号 |
CA19902027372 |
申请日期 |
1990.10.11 |
| 申请人 |
EXXON CHEMICAL PATENTS INC. |
发明人 |
CHUNG, DAVID YEN-L.;STRUGLINSKI, MARK J. |
| 分类号 |
C08F8/50;C08L23/16;C08L53/00;C10L1/16;C10L1/18;C10L1/195;C10L1/198;C10L1/236;C10L1/238;C10L1/24;C10L10/08;C10M143/02;C10M145/02;C10M149/06;C10M151/02;C10M159/12;C10N20/04;C10N30/02;C10N70/00 |
主分类号 |
C08F8/50 |
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