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:
Feb. 01, 2000
Filed:
Dec. 02, 1997
Applicant:
Inventors:
John A Duffy, West Milford, NJ (US);
Dmitri Ptchelintsev, Mahwah, NJ (US);
Assignee:
Avon Products, Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A01N / ;
U.S. Cl.
CPC ...
514474 ; 549315 ; 424401 ; 424450 ; 424490 ; 424489 ; 514262 ; 514263 ; 514264 ; 514440 ; 514456 ; 514457 ;
Abstract
A method of preparing a supersaturated and stable solution of ascorbic acid, supersaturated ascorbic acid solutions and compositions containing such supersaturated solutions. A polyol vehicle is heated to an elevated temperature, and the ascorbic acid is dissolved therein to form an ascorbic acid/polyol solution. The method provides a solution containing a significant concentration of ascorbic acid that is stable over time, temperature changes and other environmental factors.