Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical
Reexamination Certificate
2011-07-05
2011-07-05
Del Cotto, Gregory R (Department: 1761)
Bleaching and dyeing; fluid treatment and chemical modification
Bleaching
Chemical
C510S303000, C510S311000, C510S336000, C510S337000, C510S372000, C510S376000, C510S499000, C510S505000, C510S509000
Reexamination Certificate
active
07972386
ABSTRACT:
The present invention concerns bleaching of substrates with an aqueous solution of a water soluble salt of a preformed transition metal catalyst together with hydrogen peroxide.
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de Almeida Joaquim Manuel Henriques
Djodikromo Zinaida Ponie
Hage Ronald
Conopco Inc.
Del Cotto Gregory R
Knobbe Martens Olson & Bear LLP
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