Bleaching and dyeing; fluid treatment and chemical modification – Bleaching – Chemical
Reexamination Certificate
2011-07-12
2011-07-12
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, 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.
REFERENCES:
patent: 5329024 (1994-07-01), Jureller et al.
patent: 5356554 (1994-10-01), Delwel et al.
patent: 5429769 (1995-07-01), Nicholson et al.
patent: 5516738 (1996-05-01), Jureller et al.
patent: 6087312 (2000-07-01), Masotti et al.
patent: 2001/0025695 (2001-10-01), Patt et al.
patent: 2002/0010120 (2002-01-01), Hage et al.
patent: 2002/0066542 (2002-06-01), Jakob et al.
patent: 2003/0040459 (2003-02-01), Araya et al.
patent: 2005/0137105 (2005-06-01), Griese et al.
patent: 2005/0137118 (2005-06-01), Silveri
patent: 0 458 397 (1991-05-01), None
patent: 0458398 (1991-05-01), None
patent: 0509878 (1992-04-01), None
patent: 0530870 (1992-07-01), None
patent: 0544490 (1992-11-01), None
patent: WO 95/27773 (1995-10-01), None
patent: WO 97/44520 (1997-11-01), None
patent: WO 01/64993 (2001-09-01), None
patent: 02/064721 (2002-08-01), None
patent: WO 02/088063 (2002-11-01), None
patent: 2006/125517 (2006-11-01), None
patent: WO2007042192 (2007-04-01), None
International Search Report, PCT/EP2007/064334, mailed Nov. 4, 2008, 3 pp.
EP Examination Report in EP Patent Application No. 07 857 954.7, Feb. 1, 2010.
Hage et al., “Efficient Manganese Catalysts for Low-Temperature Bleaching”, Nature, Jun. 23, 1994, vol. 369, pp. 637-639.
Bachus Herbert
de Almeida Joaquim Manuel Henriques
Djodikromo Zinaida Ponie
Doerfler Christian
Hage Ronald
Conopco Inc.
Del Cotto Gregory R
Knobbe Martens Olson & Bear LLP
LandOfFree
Bleaching of substrates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bleaching of substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bleaching of substrates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2648160