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:
Apr. 30, 1991
Filed:
Dec. 29, 1988
Applicant:
Inventors:
Jean F Grollier, Paris, FR;
Chantal Fourcadier, Paris, FR;
Assignee:
L'Oreal, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
8410 ; 8423 ; 8406 ; 8634 ;
Abstract
Process for dyeing keratinous fibers, which comprises applying to these fibers at least one composition (A) containing, in a suitable medium for dyeing, at least one indole derivative and at least one substituted 2-nitro-para-phenylenediamine selected from the group consisting of 1-N-(.beta.-hydroxyethyl)amino-2-nitro-4-N', N'-(bis-.beta.-hydroxyethyl)aminobenzene and 1-N-(.beta.-hydroxyethyl)amino-2-nitro-4-aminobenzene, the color being developed with the aid of an oxidizing system consisting of: