发明申请
- 专利标题: PROCESS FOR MAKING MEDIUM-SPEED DIESEL ENGINE OIL.
- 专利标题(中): 制造中速柴油发动机油的工艺。
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申请号: US12018845申请日: 2008-01-24
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公开(公告)号: US20080113885A1公开(公告)日: 2008-05-15
- 发明人: John Rosenbaum , Nancy Smrcka
- 申请人: John Rosenbaum , Nancy Smrcka
- 主分类号: C10M105/02
- IPC分类号: C10M105/02
摘要:
A process to make a lubricating oil, comprising: a) selecting a lubricating base oil, made from a waxy feed, having: i. less than 0.3 wt % aromatics, ii, greater than 10 wt % molecules having cycloparaffinic functionality, iii. a ratio of molecules with monocycloparaffinic functionality to molecules with multicycloparaffinic functionality greater than 15; and b) blending the lubricating base oil with an engine oil additive package formulated to protect silver bearings and less than 2.0 wt % viscosity index improver; wherein the lubricating oil has a cold cranking simulator viscosity at −15° C. less than 7000 cP, a GE HTHS (final) of at least 10.8 cP, and a TBN between 8 and 20.
公开/授权文献
- US07435328B2 Process for making medium-speed diesel engine oil 公开/授权日:2008-10-14
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