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:
May. 10, 1994
Filed:
Sep. 17, 1990
Applicant:
Inventors:
Angelika Thurn-Muller, Frankenthal, DE;
Jane Hollenberg, New York, NY (US);
Ian Scott, Scarsdale, NY (US);
Assignee:
Merck Patent Gesellschaft, Darmstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; C08J / ;
U.S. Cl.
CPC ...
427220 ; 106414 ; 106415 ; 106429 ; 106436 ; 106450 ; 106460 ; 106504 ; 252314 ; 424310 ; 514275 ; 514387 ; 514473 ; 514475 ; 514873 ;
Abstract
A process for coating the surface of pigment and filler particles with an oleaginous and cosmetically functional material, characterized in that an aqueous suspension of the pigment or filler is mixed with an emulsion of said oleaginous material to be coated onto the surface of pigment or filler particles, followed by adding a component capable of breaking the emulsion to the thus obtained mixture, whereby the emulsified material coalesces onto the surface of the pigment or filler particles. The thus obtained pigments or fillers exhibit excellent properties when used in cosmetics.