(19)

(11)

EP 1 623 070 A1

(12)

(43) Date of publication: 08.02.2006 Bulletin 2006/06 (21) Application number: 04730781.4 (22) Date of filing: 30.04.2004

(51) International Patent Classification (IPC):  D21H 23/24(1990.01) D21H 17/20(1990.01) D21H 21/10(1990.01) (86) International application number: PCT/SE2004/000671 (87) International publication number: WO 2004/104299 (02.12.2004 Gazette 2004/49)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 09.05.2003 US 469010 P 14.05.2003 EP 03445057 (71) Applicants: Akzo Nobel N.V. 6800 SB Arnhem (NL) Eka Chemicals AB 445 80 Bohus (SE) SE	(72) Inventor: CARR, Duncan Neenah, WI 54956 (US) (74) Representative: Jönsson, Christer  Intellectual Property Eka Chemicals AB P.O. Box 11556 100 61 Stockholm 100 61 Stockholm (SE)