Back to results
US 2019/0169528 A1Published application
Marine engine lubrication
AssigneeInfineum International Limited
InventorsLouise Renouf, Stuart A. Taylor, Philip J. Woodward
Life of this patent
Estimating the term…
Abstract
An additive concentrate package for a marine engine cylinder lubricant is made by mixing an oil of lubricating viscosity, a metal detergent and an oil-soluble alkoxylated alcohol.
Claims18
A method of preparing an additive concentrate for a marine engine lubricating oil composition:
- (i) comprising the steps of providing as separate additive components:
- (A) at least one overbased metal detergent;
- and
- (B) an oil-soluble alkoxylated alcohol, having an HLB, in the range 7-9.5, represented by the formula
- R—[O—(CH2)x]y—OH
- where R is a linear alkyl group having from 12 to 20 carbon atoms, x is an integer from 1 to 10, and y is an integer from 2 to 10;
- the ratio of x to y being such as to provide an HLB in the above range;
- and
- (ii) admixing an oil of lubricating viscosity in a concentrate-forming amount with additive comprising additive components (A) and (B).
6 more elements
Dependencies are inferred from the claim text.