The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2022
Filed:
Oct. 05, 2018
Chanel Parfums Beaute, Neuilly sur Seine, FR;
Kyushu University, National University Corporation, Fukuoka, JP;
Masayoshi Miyamoto, Funabashi Chiba, JP;
Yoshihito Oda, Funabashi Chiba, JP;
Masahiro Goto, Fukuoka, JP;
CHANEL PARFUMS BEAUTE, Neuilly sur Seine, FR;
KYUSHU UNIVERISTY, NATIONAL UNIVERSITY CORPORATION, Fukuoka, JP;
Abstract
A method for producing a nonaqueous composition for external use on the skin including a strongly hydrophilic amphiphilic solid active ingredient-surfactant complex dissolved or dispersed in an oil phase, the method including the steps of: dissolving a surfactant in an oil phase to obtain a surfactant solution; mixing the obtained surfactant solution with a strongly hydrophilic amphiphilic solid active ingredient to obtain a suspension; and allowing the obtained suspension to stand still to obtain a transparent composition. Unlike conventional methods for preparing S/O formulations, the strongly hydrophilic amphiphilic solid active ingredient can be solubilized in an oil phase without the process of emulsification and freeze drying.