US 12,226,506 B2
Cosmetic composition comprising natural emulsifiers and thiopyridinone compounds
Nicholas David Stebbins, Rahway, NJ (US); and David Chan, Oradell, NJ (US)
Assigned to L'OREAL, Paris (FR)
Filed by L'OREAL, Paris (FR)
Filed on Jun. 21, 2022, as Appl. No. 17/844,930.
Prior Publication US 2023/0404883 A1, Dec. 21, 2023
Int. Cl. A61K 8/49 (2006.01); A61K 8/06 (2006.01); A61K 8/73 (2006.01); A61K 8/86 (2006.01); A61Q 19/02 (2006.01)
CPC A61K 8/4933 (2013.01) [A61K 8/062 (2013.01); A61K 8/73 (2013.01); A61K 8/86 (2013.01); A61Q 19/02 (2013.01); A61K 2800/524 (2013.01)] 19 Claims
 
1. An oil-in-water cosmetic composition comprising:
i) at least one compound selected from a compound of formula (I) and a tautomer of formula (I′) their salts; their optical isomers, racemates, solvates, or a mixture thereof:

OG Complex Work Unit Chemistry
wherein Formulas (I) and (I′):
R1 denotes a radical chosen from:
a) a hydrogen atom; or
b) a saturated linear C1-C10 or branched C3-C10 alkyl group optionally substituted with one or more groups, which may be identical or different, chosen from:
i) —O—R3; or
ii) —S—R3;
R2 denotes a radical chosen from:
a) a hydrogen atom;
b) a saturated hydrocarbonated group linear C1-C12 or branched C3-C12 or cyclic C3-C8, optionally substituted with one or more groups, which may be identical or different, chosen from:
i) —O—R3
ii) —S—R3; or
iii) —C(O) —O—R3;
iv) a C5-C12 aryl group optionally substituted with one or more hydroxyls and/or with one or more C1-C5 alkoxy radicals; or
c) a C5-C12 aryl group optionally substituted with one or more hydroxyls and/or with one or more C1-C5 alkoxy radicals; and
R3 denotes a radical chosen from:
a) a hydrogen atom; or
b) a saturated linear C1-C10 or branched C3-C10 alkyl group;
ii) at least two or more natural emulsifiers; and
wherein the oil-in-water cosmetic composition is physically stable.