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:
Jan. 07, 1986
Filed:
Apr. 05, 1979
Applicant:
Inventors:
Andree Bugaut, Boulogne-Billancourt, FR;
Patrick Andrillon, Aulnay-sous-Bois, FR;
Assignee:
L'Oreal, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07C / ;
U.S. Cl.
CPC ...
8410 ; 424 47 ; 564 99 ;
Abstract
New para-phenylenediamines suitable for use in the oxidative dyeing of hair are described which provide useful 'background' green shades. These compounds have the formula: ##STR1## in which n is an integer from 2 to 6 and R denotes an unsubstituted or mono- or poly-hydroxy substituted linear or branched alkylene group containing up to 6 carbon atoms, which alkylene group can optionally contain one or more ether groups.