Method of coloring porous material

Details Method of coloring porous material Method of coloring porous material

2007-05-29

2007-05-29

Douyon, Lorna M. (Department: 1751)

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Leather dyeing

C008S408000, C008S428000

Reexamination Certificate

active

10846901

ABSTRACT:
Process of coloring porous material, which comprisesa) applying to the material being colored at least one capped diazonium compound, andb) then causing the capped diazonium compound present on the material to react with the material.

REFERENCES:
patent: 2099091 (1937-11-01), Zwilgmeyer
patent: 4432897 (1984-02-01), Fürstenwerth
patent: 6177552 (2001-01-01), Reiher et al.
patent: 997334 (1976-09-01), None
patent: 841260 (1960-07-01), None
patent: 00/15184 (2000-03-01), None
patent: 02/069920 (2002-09-01), None
patent: 02/072056 (2002-09-01), None
patent: 2004/019897 (2004-03-01), None

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