US 9,809,779 B2
Lubricating composition containing an acylated polyalkylene oxide
Ewan E. Delbridge, Concord Township, OH (US)
Assigned to The Lubrizol Corporation, Wickliffe, OH (US)
Appl. No. 14/655,098
Filed by The Lubrizol Corporation, Wickliffe, OH (US)
PCT Filed Dec. 16, 2013, PCT No. PCT/US2013/075245
§ 371(c)(1), (2) Date Jun. 24, 2015,
PCT Pub. No. WO2014/105467, PCT Pub. Date Jul. 3, 2014.
Claims priority of provisional application 61/746,245, filed on Dec. 27, 2012.
Prior Publication US 2015/0337230 A1, Nov. 26, 2015
Int. Cl. C10M 141/02 (2006.01); C10M 165/00 (2006.01)
CPC C10M 141/02 (2013.01) [C10M 165/00 (2013.01); C10M 2205/022 (2013.01); C10M 2205/04 (2013.01); C10M 2207/028 (2013.01); C10M 2207/262 (2013.01); C10M 2207/28 (2013.01); C10M 2209/103 (2013.01); C10M 2209/104 (2013.01); C10M 2215/064 (2013.01); C10M 2215/10 (2013.01); C10M 2215/28 (2013.01); C10M 2219/022 (2013.01); C10M 2219/046 (2013.01); C10M 2223/045 (2013.01); C10N 2230/02 (2013.01); C10N 2230/06 (2013.01); C10N 2230/08 (2013.01); C10N 2230/10 (2013.01); C10N 2230/12 (2013.01); C10N 2230/36 (2013.01); C10N 2230/42 (2013.01); C10N 2230/43 (2013.01); C10N 2230/45 (2013.01); C10N 2230/52 (2013.01); C10N 2240/10 (2013.01); C10N 2240/102 (2013.01); C10N 2240/103 (2013.01)] 13 Claims
 
1. A lubricating composition comprising an oil of lubricating viscosity, 0.1 wt % to 10 wt % of an overbased detergent, and 0.01 wt % to 5 wt % of a non-hydroxy terminated acylated polyalkylene oxide represented by the formula:

OG Complex Work Unit Drawing
wherein independently each variable
R1 and R2 are independently C1 to C12 hydrocarbyl groups;
one R3 is H and the other R3 group is methyl;
n in 2 to 50;
wherein the lubricating composition has a sulphated ash content of 0.5 wt % to 1.5 wt %.