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:
Nov. 26, 2013
Filed:
Jan. 28, 2011
John Michael Gardlik, Cincinnati, OH (US);
Garry Steven Garrett, Fairfield, OH (US);
Bryan Patrick Murphy, Loveland, OH (US);
John Michael Janusz, West Chester, OH (US);
John August Wos, Maineville, OH (US);
John Michael Gardlik, Cincinnati, OH (US);
Garry Steven Garrett, Fairfield, OH (US);
Bryan Patrick Murphy, Loveland, OH (US);
John Michael Janusz, West Chester, OH (US);
John August Wos, Maineville, OH (US);
The Procter & Gamble Company, Cincinnati, OH (US);
Abstract
A process for synthesizing 2-methoxymethyl-1,4-benzenediamine, its derivatives of formula (IV) and the salts thereof, which comprises a reductive amination step. The preferred final product is 2-methoxymethyl-1,4-benzenediamine of formula (IV-a). These compounds may be used as primary intermediates in compositions for dyeing keratin fibers.