Processing

Please wait...

Settings

Settings

Goto Application

1. US20040121919 - Lubricating oil compositions comprising a trinuclear compound antioxidant

Office
United States of America
Application Number 10181858
Application Date 01.11.2002
Publication Number 20040121919
Publication Date 24.06.2004
Publication Kind A1
IPC
C10M 135/18
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
135Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
12Thio-acids; Thiocyanates; Derivatives thereof
14having a carbon-to-sulfur double bond
18thiocarbamic type, e.g. containing the groups
C10M 123/00
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
123Lubricating compositions characterised by the thickener being a mixture of two or more compounds covered by more than one of the main groups C10M113/-C10M121/193
C10M 123/04
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
123Lubricating compositions characterised by the thickener being a mixture of two or more compounds covered by more than one of the main groups C10M113/-C10M121/193
04at least one of them being a macromolecular compound
C10M 169/00
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
169Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
C10M 169/02
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
169Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
02Mixtures of base-materials and thickeners
Inventors Gao Jason Zhisheng
Agents EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
Priority Data 0003383 14.02.2000 GB
Title
(EN) Lubricating oil compositions comprising a trinuclear compound antioxidant
Abstract
(EN)

This invention relates to a lubricating oil composition comprising a Group I basestock and an antioxidant comprising an oil soluble trinuclear organomolybdenum compound of the generic formula (1): Mo3Sx-(Q) wherein x is from 4 to 10 and Q is a core group, which may be a ligand, wherein the basestock has a kinematic viscosity at 100° C. (KV100) from about 2 cSt to 50 cSt (2×10−6 to 50×10−6 m2/sec), a saturates content of <;90% w/w, an aromatics content of >;10% w/w and a sulphur content of >;0.03% w/w. The composition has an improved stability when compared with either a Group II, III or IV basestock containing the same antioxidant or a Group I basestock containing a dinuclear molybdenum dithiocarbamate.