Bleaching of substrates

Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical

Reexamination Certificate

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Details

C510S303000, C510S311000, C510S336000, C510S337000, C510S372000, C510S376000, C510S499000, C510S505000, C510S509000, C252S186270, C252S186330

Reexamination Certificate

active

07976582

ABSTRACT:
The present invention concerns the treatment of a cellulose material in the presence of a transition metal catalyst, hydrogen peroxide whilst maintaining the pH of the treatment mixture.

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Hage et al., “Efficient Manganese Catalysts for Low-Temperature Bleaching”, Nature, Jun. 23, 1994, vol. 369, pp. 637-639.

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