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:
Mar. 20, 2007
Filed:
Oct. 08, 2002
Applicants:
Jean-marie Adam, Rosenau, FR;
Taher Yousaf, Basel, CH;
Inventors:
Jean-Marie Adam, Rosenau, FR;
Taher Yousaf, Basel, CH;
Assignee:
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 7/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a method of coloring keratin-containing fibres, especially human hair, in which method a compound of formula (I), wherein R is hydroxy or NHR, Rbeing hydrogen or C–Calkyl, and B is an aromatic or heterocyclic ring, is diazotised, and the resulting diazonium salt is applied at a pH of from 2 to 5 to the material being colored and then, by means of increasing the pH to from 7 to 12, is fixed on the material in the form of an oligomeric or polymeric colorant