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. 06, 2003
Filed:
Apr. 25, 2002
Otto Goettel, Marly, CH;
Aline Pirrello, Givisiez, CH;
Andre Hayoz, Senedes, CH;
Hans-Juergen Braun, Ueberstorf, CH;
Wella AG, Darmstadt, DE;
Abstract
The method of dyeing keratin fibers includes the steps of providing an oxidation dye precursor composition containing from 0.01 to 10 percent by weight of a total amount of at least one coupler compound and at least one developer compound, mixing the oxidation dye precursor composition with an oxidizing agent and applying the resulting mixture to the keratin fibers. The oxidation dye precursor composition is characterized by containing 1,4-diamino-2-methoxymethylbenzene, or a physiologically compatible salt thereof, either alone as sole developer compound, or in combination with other known developer compounds. The oxidation dye precursor composition can also contain at least one direct-dyeing dye compound and conventional cosmetic additive ingredients.