US 2013/0274158 A1 · Lubricating Oil Compositions

Abstract

An internal combustion engine crankcase lubricating oil composition having a sulphated ash content of no greater than 1.2 mass %, based on the mass of the lubricating oil composition, and a phosphorous content of no greater than 0.1 mass %, based on the mass of the lubricating oil composition, which lubricating oil composition comprises or is made by admixing: (A) a crankcase base oil of lubricating viscosity, in a major amount; and (B) the following additives, in respective minor amounts: (B1) a polymeric friction modifier being the reaction product of (a) a functionalised polyolefin, (b) a polyether, (c) a polyol, and (d) a monocarboxylic acid chain terminating group; and (B2) at least one oil-soluble molybdenum compound.

Claims14

Dependent claims

(A) a crankcase base oil of lubricating viscosity, in a major amount;
and
(B) the following additives, in respective minor amounts:
(B1) a polymeric friction modifier being the reaction product of
(a) a functionalised polyolefin,
(b) a polyether,
(c) a polyol, and
(d) a monocarboxylic acid chain terminating group;
and
(B2) at least one oil-soluble molybdenum compound.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application

13/445,286Filed 12 Apr 2012

Published

17 Oct 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification16 codes

C10M 137/10
Phosphate esters: thio derivatives
C10M 125/22
Lubricating compositions characterised by the additive being an inorganic material: compounds containing sulfur, selenium or tellurium
C10M 135/00
Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing
C10M 135/18
Having a carbon-to-sulfur double bond: thiocarbamic type, e.g. containing the groups [IMAGE cpc-sch-C10M-1027.gif]

Lubricating Oil Compositions

Life of this patent

Lubricating Oil Compositions

Life of this patent

Abstract

Claims14