发明名称 |
IMPROVED OLEFINIC COPOLYMER COMPOSITIONS FOR VISCOSITY MODIFICATION OF MOTOR OIL |
摘要 |
Lube oil compositions and methods for making the same are provided. The lubricating oil composition can include at least one propylene-based polymer comprising 60 wt% to 98 wt% propylene derived units, other units derived from one or more other alpha olefins, and a base oil. The propylene-based polymer can have a triad tacticity of 90% or more, a heat of fusion of less than 80 J/g, and a weight average molecular weight (Mw) as measured by GPC of from 70,000 to 250,000.
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申请公布号 |
CA2733254(C) |
申请公布日期 |
2013.10.29 |
申请号 |
CA20082733254 |
申请日期 |
2008.08.08 |
申请人 |
EXXONMOBIL CHEMICAL PATENTS INC.;CHEVRON ORONITE COMPANY LLC |
发明人 |
RAVISHANKAR, PERIAGARAM S.;NASS, KIRK A. |
分类号 |
C10M143/04;C08F210/06;C08L23/14 |
主分类号 |
C10M143/04 |
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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