Bleaching and dyeing; fluid treatment and chemical modification – Dyeing involving animal-derived natural fiber material ,... – Hair dyeing
Reexamination Certificate
2007-06-12
2007-06-12
Elhilo, Eisa (Department: 1751)
Bleaching and dyeing; fluid treatment and chemical modification
Dyeing involving animal-derived natural fiber material ,...
Hair dyeing
C008S437000, C008S451000, C008S466000, C008S565000, C008S566000, C008S567000, C008S575000, C008S607000, C008S666000, C008S688000, C544S180000, C544S224000
Reexamination Certificate
active
10525469
ABSTRACT:
A method of coloring porous material, especially human hair, is described, which method comprises applying to the material being colored, in any desired order successively, or simultaneously, a) at least one capped diazonium compound and b) at least one cationic water-soluble aromatic coupling component, under conditions such that, initially, coupling does not take place, and then causing the capped diazonium compound present on the material to react with the coupling component.
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STIC Search REport filed on Sep. 20, 2006.
Eliu Victor Paul
Fröhling Beate
Ciba Specialty Chemicals Corporation
Elhilo Eisa
Stevenson Tyler A.
Wood Mervin G.
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