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US 2014/0194332 A1Published application
Two-phase lubricating oil composition
AssigneeShell Oil Company
InventorsKumiko Kamata, Ryuji Maruyama, Noriaki Shinoda, Hiroyuki Tazaki
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Abstract
Lubricating oil compositions are provided herein that comprise a mixture of: (A) a hydrocarbon as a low-viscosity constituent, (B) a polyalkylene glycol (PAG) as a high-viscosity constituent wherein the oxygen/carbon weight ratio is in the range of from 0.450 to 0.580, and (C) a compound as a control constituent wherein the oxygen/carbon weight ratio is in the range of from 0.080 to 0.350. Methods of lubricating a surface using such lubricating compositions are also provided herein.
Claims22
A lubricating oil composition comprising a mixture of:
- (A) a hydrocarbon as a low-viscosity constituent,
- (B) a polyalkylene glycol (PAG) as a high-viscosity constituent wherein the oxygen/carbon weight ratio is in the range of from 0.450 to 0.580, and
- (C) a compound as a control constituent wherein the oxygen/carbon weight ratio is in the range of from 0.080 to 0.350.
(canceled)
(canceled)
A method comprising:
- applying a lubricating oil composition to a surface in relative movement to another surface, wherein the lubricating oil composition comprises a mixture of:
- (A) a hydrocarbon as a low-viscosity constituent,
- (B) a polyalkylene glycol (PAG) as a high-viscosity constituent wherein the oxygen/carbon weight ratio is in the range of from 0.450 to 0.580, and
- (C) a compound as a control constituent wherein the oxygen/carbon weight ratio is in the range of from 0.080 to 0.350.
1 more element
Dependencies are inferred from the claim text.