Patent · US Active

Esters for drilling emulsions and metal working fluids

US9896613B2 · kind B2 · utility

5Cited by

18References

19Claims

0Family size

Assignee

AMRIL AG · CH

Inventors

Heinz-Joachim Muller · Burgkirchen an der Alz, DE
Diana Maker · Mettmann, DE
Patrick Hähnel · Duisburg, DE

Key dates

Filing date	Jul 26, 2012
Grant date	Feb 20, 2018
Priority date	—
Expiry date	May 5, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10N2040/22
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

The present invention relates to an emulsion comprising at least (a) an organic phase, (b) a water phase and (c) an ester based on an ether carboxylic acid and an alcohol. Also within the ambit of the invention is the use of an ester as defined in (c) as emulsifier, as a thickening agent and/or as an anti-foaming agent in particular in drilling emulsions and metal working fluids.

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