High viscosity base fluids based on oil compatible polyesters prepared from long-chain epoxides

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United States of America Patent

PATENT NO 12098344
APP PUB NO 20230257674A1
SERIAL NO

18003958

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Abstract

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A polyester is useful as a high viscosity base fluid. A method for its preparation involves epoxidizing an alpha-olefin, reacting the alpha-epoxide or diol with a saturated linear aliphatic dicarboxylic acid, and isolating the polyester. Lubricant compositions can contain such polyesters and the compositions are useful as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual clutch transmission fluids, dedicated hybrid transmission fluids, or as hydraulic oils.

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Patent Owner(s)

Patent OwnerAddress
EVONIK OPERATIONS GMBHRELLINGHAUSER STRASSE 1-11 ESSEN 45128

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Altenbuchner, Peter Muenster, DE 6 2
Elsner, Jens Hochheim, DE 4 0
Hilf, Stefan Zwingenberg, DE 18 128
Maier, Stefan Karl Ober-Ramstadt, DE 7 9
Schweiβinger, Emily Clare Dortmund, DE 1 0
Zatocil, Christiane Herten, DE 3 0
Ziegler, Fabian Darmstadt, DE 5 3

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