Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2006-06-13
2006-06-13
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S406000, C008S408000, C008S410000, C008S411000, C008S412000, C008S435000, C132S208000, C424S070100
Reexamination Certificate
active
07060111
ABSTRACT:
A sequential method for dyeing hair which comprises: contacting the hair with a substantially inactive dye precursor mixture containing at least one primary intermediate and an optional coupler having at least 50% of the molecules comprising these precursors are in their non-anionic form, for a period of time, followed by contacting the hair with a developer mixture capable of oxidizing the hair dye precursors to react and form hair color molecules.
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Int'l. Search Report No. PCT/EP 2004/007060—dated Jul. 12, 2004—4 pp.
Co-pending U.S. Appl. No. 09/811,920; filed Mar. 19, 2001; Patel et al.; entitled “Method and Composition for the Gradual Permanent Coloring of Hair”.
Co-pending U.S. Appl. No. 10/075,745; filed Feb. 14, 2002; Sarojini et al.; entitled “Two Step Permanent Coloring of Hair”.
Co-pending application; Serial No. Not Assigned as of yet; filed Jul. 3, 2003; Chan et al.; entitled “Hair Dyeing Method Including an Aligning Step”.
Bartolone John Brian
Chan Alexander C.
Prem Padmaja
Aronson Michael P.
Elhilo Eisa
Unilever Home & Personal Care USA division of Conopco, Inc
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