Patent · US Active

Lubricant compositions

US8969267B2 · kind B2 · utility

0Cited by

1References

16Claims

0Family size

Assignee

Cognis IP Management GmbH · DE

Inventors

Ronny Rinklieb · Korschenbroich, DE
Dirk Rettemeyer · Hückelhoven, DE
Markus Scherer · Lebach, DE

Key dates

Filing date	Sep 15, 2010
Grant date	Mar 3, 2015
Priority date	—
Expiry date	Oct 19, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/30
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Suggested is a method for enhancing energy efficiency of engines by applying to said engines a lubricant composition containing (A) carboxylic esters derived from the reaction of mono-, di- and/or poly alcohols with mono- and/or dicarboxylic acids, together with an additive blend (B) comprising at least two different additives (a) and (b) together, whereby compound (a) is selected from dithiophosphates, and compound (b) is selected from alkylated phosphorothionates, on condition that the total amount of the additive blend (B) is below 0.1 wt %, calculated on the weight of the whole composition.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.