| 发明名称 |
POLYMER BLENDS AND THEIR APPLICATION AS VISCOSITY INDEX IMPROVERS |
| 摘要 |
The present invention relates to a polymer blend containing a high ethylene content ethylene- propylene copolymer and a lower ethylene content ethylene-propylene copolyme r. The polymer blend of the present invention is useful for the preparation of viscosity index improvers with improved lower temperature properties relative to conventiona l viscosity index improvers. |
| 申请公布号 |
CA2421166(A1) |
申请公布日期 |
2003.09.15 |
| 申请号 |
CA20032421166 |
申请日期 |
2003.03.05 |
| 申请人 |
ETHYL CORPORATION |
发明人 |
MISHRA, MUNMAYA K.;SAXTON, RAYMOND G.;SALAZAR, LUIS A.;SPEDALE, GARY J. |
| 分类号 |
C08F8/50;C08L23/08;C08L23/14;C08L23/16;C10M143/04;C10N20/04;C10N30/02;C10N40/25 |
主分类号 |
C08F8/50 |
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