US 11,052,025 B2
Perfumes in the form of aqueous microemulsions
Oriana Boucenna Verdier, Les Pavillons Sous Bois (FR); Christian Mahe, Neuilly sur Seine (FR); Véronique Rataj-Nardello, Pont a Marcq (FR); Jean-Marie Aubry, Oignies (FR); Maxime Nollet, Lyons (FR); and Raphaël Lebeuf, Lille (FR)
Assigned to CHANEL PARFUMS BEAUTE, Neuilly sur Seine (FR); and UNIVERSITE DE LILLE, Lille (FR)
Appl. No. 16/304,773
Filed by CHANEL PARFUMS BEAUTE, Neuilly sur Seine (FR); and UNIVERSITE SCIENCES TECHNOLOGIES LILLE, Villeneuve d'Ascq (FR)
PCT Filed Jun. 1, 2017, PCT No. PCT/FR2017/051373
§ 371(c)(1), (2) Date Nov. 27, 2018,
PCT Pub. No. WO2017/207935, PCT Pub. Date Dec. 7, 2017.
Claims priority of application No. 16 54983 (FR), filed on Jun. 1, 2016.
Prior Publication US 2020/0323749 A1, Oct. 15, 2020
Int. Cl. A61Q 13/00 (2006.01); A61K 8/06 (2006.01); A61K 8/33 (2006.01); A61K 8/34 (2006.01); A61K 8/35 (2006.01); A61K 8/37 (2006.01); A61K 8/44 (2006.01); A61K 8/46 (2006.01); A61K 8/49 (2006.01); A61K 8/60 (2006.01)
CPC A61K 8/068 (2013.01) [A61K 8/062 (2013.01); A61K 8/33 (2013.01); A61K 8/34 (2013.01); A61K 8/342 (2013.01); A61K 8/35 (2013.01); A61K 8/37 (2013.01); A61K 8/442 (2013.01); A61K 8/463 (2013.01); A61K 8/466 (2013.01); A61K 8/4973 (2013.01); A61K 8/602 (2013.01); A61Q 13/00 (2013.01); A61K 2800/30 (2013.01); A61K 2800/596 (2013.01)] 13 Claims
 
1. A microemulsion of oil-in-water type comprising by weight relative to the total weight of microemulsion:
70% to 94% of water,
1% to 15% of at least one hydrophobic fragrancing substance,
4% to 20% of at least one volatile solvo-surfactant, and
0.1% to 15% of at least one hydrotropic agent or at least one surfactant selected from anionic surfactants, cationic surfactants, amphoteric surfactants and non-ionic surfactants, said solvo-surfactant being selected from monoalkylated glycerol derivatives of following formula (I):

OG Complex Work Unit Chemistry
wherein the “alkyl” group is a linear or branched alkyl group comprising from 1 to 8 carbon atoms, and R and R′ are each independently H or a linear or branched alkyl group comprising from 1 to 5 carbon atoms, with the proviso that R is different from R′, and mixtures thereof.