Patent · US Expired

Pyrrolidinyl-substituted para-phenylenediamine derivatives substituted with a cationic radical, and use of these derivatives for dyeing keratin fibers

US6946005B2 · kind B2 · utility

12Cited by

66References

36Claims

0Family size

Assignee

L'Oreal S.A. · FR

Inventors

Stéphane Sabelle · Paris, FR
Laure Ramos · Libourne, FR
Madeleine Leduc · Paris, FR
Michel Philippe · Wissous, FR

Key dates

Filing date	Mar 27, 2003
Grant date	Sep 20, 2005
Priority date	—
Expiry date	Jul 27, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/572
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Novel pyrrolidinyl-substituted para-phenylenediamine derivatives comprising a cationic radical, the dye compositions comprising them and the process for dyeing keratin fibers using these compositions, making it possible to obtain a chromatic, powerful, unselective and fast coloration of keratin fibers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.