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:
Jun. 01, 1976
Filed:
Apr. 15, 1974
Applicant:
Inventors:
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ;
U.S. Cl.
CPC ...
8 101 ; 8 102 ;
Abstract
A process for producing a dye in powder form involves reacting an oxidation agent with an oxidation base in an aqueous alkaline preferably ammoniacal medium having a pH ranging from 8 to 13 at a temperature and during a period of time allowing at least a partial oxidation, preferably between 15.degree.-30.degree.C for a period of about 5 minutes to 30 hours and lyophilizing or spray-drying the resulting reaction product. The resulting dye can be used to color keratinic fibers, especially human hair.