Patent · US Expired

Coupling components

US7211119B2 · kind B2 · utility

0Cited by

14References

20Claims

0Family size

Assignee

Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

George Knuebel · Goldkronach, DE
Horst Hoeffkes · Goldkronach, DE
Ralph Nemitz · Frechen, DE

Key dates

Filing date	Jun 23, 2005
Grant date	May 1, 2007
Priority date	—
Expiry date	Jun 23, 2025

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06P3/08
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Keratin fibers are colored by an agent comprising a coupler which is a m-phenylenediamine derivative of the formula (I)

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