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US 12,679,799 B2Granted
Dielectric fluid compositions comprising low viscosity monoesters with improved low temperature performance
AssigneeEvonik Operations GmbH
InventorsKristina Jovic, Roland Wilkens
Life of this patent
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Abstract
The invention relates to branched monoesters of formula (I), as well as to a dielectric fluid composition, intended for use as a cooling fluid for electrical equipment systems, comprising at least one of these branched monoesters of formula (I). The invention is also directed to a method of cooling electrical equipment systems by using the dielectric fluid compositions according to the invention.
Claims16
A branched monoester A), wherein the branched monoester A) is of formula (I)
- wherein R1 is a linear alkyl residue with 3 to 13 carbon atoms,
- wherein each R2 and R3 is a linear alkyl residue with 5 carbon atoms, and
- the branched monoester A) does not include 6-undecyl laurate.
A method of cooling an electrical equipment system comprising applying a dielectric fluid composition to the electrical equipment system,
- wherein the dielectric fluid composition comprises a branched monoester A) of formula (I), or a mixture thereof:
- wherein R1 is a linear alkyl residue with 3 to 13 carbon atoms, and
- wherein each R2 and R3 is a linear alkyl residue with 5 carbon atoms.
Dependencies are inferred from the claim text.