(19)
(11) EP 1 866 477 A1

(12)

(43) Date of publication:
19.12.2007 Bulletin 2007/51

(21) Application number: 06740857.5

(22) Date of filing: 07.04.2006
(51) International Patent Classification (IPC): 
D21C 9/00(2006.01)
D21H 23/22(2006.01)
D21H 21/32(2006.01)
D21H 21/30(2006.01)
 D21H 23/00(2006.01)
D21H 11/00(2006.01)
D21H 17/15(2006.01)
(86) International application number:
PCT/US2006/013479
(87) International publication number:
WO 2006/110751 (19.10.2006 Gazette 2006/42)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(30) Priority: 08.04.2005 US 102318
19.09.2005 US 718475 P
29.09.2005 US 721847 P
23.03.2006 US 387499

(71) Applicant: Nalco Company
Naperville, IL 60563-1198 (US)

(72) Inventors:
  • DUGGIRALA, Prasad
    Naperville, Illinois 60564 (US)
  • SHEVCHENKO, Sergey
    Aurora, Illinois 60504 (US)

(74) Representative: Miller, James Lionel Woolverton et al
Kilburn & Strode, 20 Red Lion Street
London WC1R 4PJ
London WC1R 4PJ (GB)

   


(54) IMPROVED COMPOSITION AND PROCESSES FOR PAPER PRODUCTION