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(11)

EP 1 448 846 A1

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(43) Date of publication: 25.08.2004 Bulletin 2004/35 (21) Application number: 02791239.3 (22) Date of filing: 12.11.2002

(51) International Patent Classification (IPC)7: D21C 3/00, D21C 3/20, D21C 5/00, D21H 11/20, D21H 25/02 (86) International application number: PCT/US2002/036443 (87) International publication number: WO 2003/040462 (15.05.2003 Gazette 2003/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 09.11.2001 US 347818 P (71) Applicants: Biopulping International, Inc. Madison, WI 53713 (US) United States of America as represented by the Department of Agriculture Washinton, DC 20250-0302 (US)	(72) Inventors: AKHTAR, Masood Madison, WI 53713 (US) LENTZ, Michael, J. Madison, WI 53703 (US) HORN, Eric, G. Madison, WI 53711 (US) KLUNGNESS, John, H. Madison, WI 53711 (US) SCOTT, C., Tim Blanchardville, WI 53516 (US) (74) Representative: Watson, Robert James et al Mewburn Ellis LLPYork House23 Kingsway London WC2B 6HP London WC2B 6HP (GB)