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:
Jan. 08, 2002
Filed:
Mar. 09, 2000
Applicant:
Inventors:
Veronique Chevalier, Villecresnes, FR;
Melanie Quest, Paris, FR;
Assignee:
L'Oreal, Paris, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 7/42 ; A61K 3/1425 ; A61K 7/135 ; A61K 7/00 ;
U.S. Cl.
CPC ...
A61K 7/42 ; A61K 3/1425 ; A61K 7/135 ; A61K 7/00 ;
Abstract
A composition containing a continuous aqueous phase comprising L-2-oxothiazolidine-4-carboxylic acid, at least one sequestering agent and at least one neutralizing agent, the said neutralizing agent being present in an amount which is sufficient to adjust the pH of the aqueous phase of the composition to a value of between 5 and 8. The combination of the sequestering agent and the neutralizing agent stabilizes the L-2-oxothiazolidine-4-carboxylic acid, in particular with respect to thermal degradation, and thus prevents yellowing of the composition and the formation of unpleasant odors.