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. 06, 2010
Filed:
Jun. 18, 2003
Applicant:
Bruno Biatry, Vincennes, FR;
Inventor:
Bruno Biatry, Vincennes, FR;
Assignee:
L'Oreal, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
A61K 31/34 (2006.01); A61K 47/00 (2006.01); A61K 31/00 (2006.01); A61K 31/765 (2006.01); A61K 9/28 (2006.01); A61K 9/14 (2006.01); A01N 43/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a composition for topical use containing at least one oxidation sensitive hydrophilic active principle and at least one maleic anhydride copolymer, comprising one or more maleic anhydride comonomers and one or more comonomers selected from the group consisting of vinyl acetate, vinyl alcohol, vinylpyrrolidone, olefins containing from 2 to 20 carbon atoms, and styrene, in a physiologically acceptable medium containing an aqueous phase. The invention also relates to the use of a maleic anhydride copolymer as defined above for stabilizing an oxidation-sensitive hydrophilic active principle, in particular in the aqueous phase.