| 发明名称 |
SHEAR STABLE VISCOSITY IMPROVER FOR LUBRICATING OILS |
| 摘要 |
Viscosity improver capable of imparting a VIE of at least 155 to a lubricating oil exhibiting, before incorporation of the said improver, a viscosity at 100.degree.C of 4.8 to 5.5 mm2/s and a VIE of 85 to 100, which exhi bits a shear strength such that the relative drop in viscosity after four hours in th e "VKA" test or after twenty hours in the "FZG" test is lower than 13 %.
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| 申请公布号 |
CA2117497(A1) |
申请公布日期 |
1994.10.04 |
| 申请号 |
CA19942117497 |
申请日期 |
1994.02.04 |
| 申请人 |
LUBRIZOL CORPORATION (THE) |
发明人 |
CANTIANI, ROBERT;RICHARD, JOEL |
| 分类号 |
C08F20/18;C08F220/10;C08F220/18;C10M145/14;C10N20/02;C10N20/04;C10N30/02;C10N40/04;(IPC1-7):C08F20/18;C08F20/10 |
主分类号 |
C08F20/18 |
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