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US 2023/0101832 A1Published application
Stable, liquid emulsifiers on the basis of citrate esters and their use
AssigneeSymrise AG
InventorsNikolas BUGDAHN, Sabine LANGE, Ricarda KRÄLING, Vanessa SCHADE
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Abstract
The present invention is in the field of emulsifiers and provides novel emulsifier mixtures for use in cosmetic or pharmaceutical formulations or in detergents. The emulsifier mixtures according to the invention comprise a citrate ester mixture and at least one 1,2-alkanediol, 1,3-alkanediol, 1,4-alkanediol and/or 1,5-alkanediol and are characterized by increased stability and low precipitation over a wide temperature range and during a long storage period.
Claims21
1-15. (canceled)
An emulsifier mixture comprising:
- (a) a mixture of glycerol esters comprising at least one compound of formula (I) and/or a salt thereof:
- wherein
- (i) at least one of R1, R2 and R3 is a citric acid residue attached by an ester bond;
- and
- (ii) at least one of R1, R2, and R3 is a fatty acid residue attached by an ester bond;
- and
- wherein more than 55 wt. % of the one or more compounds of formula (I) comprise at least one fatty acid residue independently selected from caproic acid, caprylic acid, capric acid, lauric acid, and myristic acid, based on a total weight of the one or more compounds of formula (I);
- and/or
- more than 50 wt. % of the one or more compounds of formula (I) comprise at least one fatty acid residue independently selected from lauric acid and myristic acid, based on the total weight of the compounds of formula (I);
- and/or
- less than 40 wt. % of the one or more compounds of formula (I) comprise at least one fatty acid residue independently selected from palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid, based on the total weight of the one or more compounds of formula (I);
- and
- (b) at least one 1,2-alkanediol, 1,3-alkanediol, 1,4-alkanediol, 1,5-alkanediol, or a mixture thereof;
- and
11 more elements
Dependencies are inferred from the claim text.