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:
Dec. 07, 1999
Filed:
Dec. 12, 1997
Applicant:
Inventors:
Hans Georg Weder, Ruschlikon, CH;
Marc Antoine Weder, Ruschlikon, CH;
Assignee:
Vesifact AG, Baar, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424401 ; 514 78 ; 514844 ; 514846 ; 514847 ; 514848 ; 514937 ; 514938 ;
Abstract
The cosmetic preparation contains: (a) an oil-soluble active ingredient that is suitable for skin cosmetics, (b) a partial fatty acid ester of polyoxyethylene sorbitan, (c) at least one phospholipid, (d) ethanol, and (e) water as a carrier liquid. The phospholipid is dissolved in ethanol, and then the partial fatty acid esters of polyoxyethylene sorbitan and the active ingredient are added. The oil phase that is obtained is added to water and stirred. The preparation is obtained in the form of a nanodispersion.