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US 12,577,491 B2Granted
Base oil and lubricating fluid composition containing said base oil
AssigneeFuchs SE
InventorsPatrick Fries, Olaf Binkle
Life of this patent
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Abstract
The invention relates to a base oil comprising polyalphaolefins, polymer esters and polyalkylene glycols and a lubricating fluid composition containing the base oil. The lubricating fluid composition can be used for the lubrication of transmission and for use in hydraulic systems, in particular for lubrication in the food preparation industry.
Claims17
A base oil comprising
- 81-96 wt. % polyalphaolefins as being oligomers of C6 to C14 alpha-olefins;
- 2-15 wt. % polymer esters as being polymerisation product of one or more alpha/beta-unsaturated dicarboxylic acid diesters, wherein the alcohol groups have 3 to 10 carbon atoms, and
- C4 to C18 alpha-olefins;
- and
- 2-4 wt. % polyalkylene glycols obtainable from alkylene oxides, wherein the alkylene oxides comprise:
- butylene oxide, or
- propylene oxide and at least one C4 to C8 alkylene oxide.
4 more elements
Dependencies are inferred from the claim text.