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:
Aug. 12, 1997
Filed:
Dec. 29, 1994
Applicant:
Inventors:
Nathalie Collin, Sceaux, FR;
Eric Quemin, Villepinte, FR;
Assignee:
L'Oreal, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
514725 ; 514 63 ; 514724 ; 514859 ; 514937 ; 514938 ;
Abstract
The invention relates to a water-in-oil emulsion containing retinol, an oil phase, an aqueous phase and an agent for emulsifying the aqueous phase in the oil phase, the oil phase containing at least one organic solvent for retinol which is liquid at room temperature, and the pH of the aqueous phase being basic, so as to stabilize the retinol for at least two months at 45.degree. C. This emulsion is for cosmetic or dermatological use.