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US 12,497,426 B2Granted
Rhamnolipid oligo-esters
AssigneeEvonik Operations GmbH
InventorsXin Lu, Jochen Kleinen, Hans Henning Wenk
Life of this patent
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Abstract
A rhamnolipid ester is useful as a cosmetic additive. A method of its production involves providing at least one rhamnolipid, reacting the at least one rhamnolipid with at least one coupling reagent, reacting the at least one rhamnolipid with a polyhydric alcohol having 1 to 32 carbon atoms, and optionally purifying the at least one rhamnolipid ester.
Claims19
A rhamnolipid (RL) ester of the general formula (I)
- general formula (I),
- wherein
- m=independently of one another, identical or different, 2, 1, or 0,
- n=independently of one another, identical or different, 1 or 0,
- Z=2 to 10,
- R1=independently of one another, identical or different, an organic radical having 2 to 24 carbon atoms,
- R2=independently of one another, identical or different, an organic radical having 2 to 24 carbon atoms, and
- A is a z-valent organic radical.
5 more elements
Dependencies are inferred from the claim text.