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1. 发明申请

WO2013055480A1 LOW VISCOSITY ENGINE OIL COMPOSITIONS 审中-公开
标题翻译：低粘度发动机油组成
公开(公告)号：WO2013055480A1
公开(公告)日：2013-04-18
申请号：PCT/US2012/054764
申请日：2012-09-12
申请人： EXXONMOBIL RESEARCH AND ENGINEERING COMPANY , MARTIN, Richard, W. , DECKMAN, Douglas, E. , KELLY, Kevin, J. , EMETT, Craig, J. , HAGEMEISTER, Mark, P. , HARRINGTON, Bruce, A. , LIN, Cohn-Yie , MATSUNAGA, Phillip, T. , RUFF, Charles, J. , STAVENS, Kevin, B. , EXXONMOBIL CHEMICAL PATENTS INC.
发明人： MARTIN, Richard, W. , DECKMAN, Douglas, E. , KELLY, Kevin, J. , EMETT, Craig, J. , HAGEMEISTER, Mark, P. , HARRINGTON, Bruce, A. , LIN, Cohn-Yie , MATSUNAGA, Phillip, T. , RUFF, Charles, J. , STAVENS, Kevin, B.
IPC分类号： C10M111/04 , C10M171/02 , C10N30/02 , C10N30/10 , C10N30/12 , C10N40/25
CPC分类号： C10M105/04 , C10M3/00 , C10M105/32 , C10M107/10 , C10M111/04 , C10M169/02 , C10M169/04 , C10M171/02 , C10M2203/1025 , C10M2203/1065 , C10M2205/003 , C10M2205/024 , C10M2205/0285 , C10M2205/22 , C10M2205/223 , C10M2223/045 , C10N2210/02 , C10N2220/028 , C10N2230/02 , C10N2230/04 , C10N2230/10 , C10N2230/12 , C10N2230/45 , C10N2230/52 , C10N2230/54 , C10N2230/68 , C10N2230/74 , C10N2240/10 , C10N2270/00 , C10N2220/022 , C10M2205/026
摘要： This invention is directed to ultra-low viscosity passenger car engine oil compositions with a kinematic viscosity at 100°C of from 4 to 6 cSt, and comprising in admixture 60 wt% to 90 wt% of a first base oil component, based on the total weight of the composition, the first base oil component consisting of a polyalphaolefm base stock or combination of polyalphaolefm base stocks, each having a kinematic viscosity at 100°C of from 3.2 cSt to 3.8 cSt; and 0.1 wt% to 20 wt% of a second base oil component, based on the total weight of the composition, the second base oil component consisting of a Group II, Group III or Group V base stock, or any combination thereof; wherein the composition comprises from 0 wt% to less than 0.25 wt% viscosity index improver, on a solid polymer basis; wherein the composition has a kinematic viscosity at 100°C of from 4 to 6 cSt, a Noack volatility of less than 15% as determined by ASTM D5800, a CCS viscosity of less than 3500 cP at -35°C as determined by ASTM D5293, and an HTHS viscosity of less than 2.6 mPa-s at 150°C as determined by ASTM D4683.
摘要翻译：本发明涉及在100℃下运动粘度为4至6cSt的超低粘度乘用车发动机油组合物，并且包含混合物60重量％至90重量％的第一基础油组分，基于组合物的总重量，第一基础油组分由聚α-烯烃基础油料或聚α-烯烃基础油组合组成，各自在100℃下的运动粘度为3.2cSt至3.8cSt; 和0.1重量％至20重量％的第二基础油组分，基于组合物的总重量，第二基础油组分由II，III或V族基础油组成，或其任何组合; 其中所述组合物包含基于固体聚合物的0重量％至小于0.25重量％的粘度指数改进剂; 其中所述组合物在100℃下的运动粘度为4至6cSt，通过ASTM D5800测定的Noack挥发度小于15％，在-35℃下通过ASTM D5293测定的CCS粘度小于3500cP ，并且通过ASTM D4683测定，在150℃下的HTHS粘度小于2.6mPa·s。

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