(19)
(11) EP 1 088 130 A2

(12)

(88) Date of publication A3:
03.08.2000

(43) Date of publication:
04.04.2001 Bulletin 2001/14

(21) Application number: 98922379.7

(22) Date of filing: 15.05.1998
(51) International Patent Classification (IPC)7: D21C 9/10, D21C 9/16, D21C 9/147
(86) International application number:
PCT/US9810/070
(87) International publication number:
WO 9960/201 (25.11.1999 Gazette 1999/47)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(71) Applicants:
  • National Silicates Partnership
    Etobicoke,Ontario M8Z 5C7 (CA)
  • The Research Foundation of State University of New York
    Albany, NY 12246 (US)

(72) Inventors:
  • EVANS, Timothy, D.
    Oakville, Ontario L6J 2T5 (CA)
  • FRANCIS, Raymond, C.
    Dewitt, NY 13214 (US)

(74) Representative: Schwabe - Sandmair - Marx 
Stuntzstrasse 16
81677 München
81677 München (DE)

   


(54) PEROXIDE, OXYGEN, AND PEROXIDE/OXYGEN BRIGHTENING OF CHEMICAL AND MIXED WASTE PULPS