(19)

(11)

EP 1 264 040 A2

(12)

(88) Date of publication A3: 28.03.2002 (43) Date of publication: 11.12.2002 Bulletin 2002/50 (21) Application number: 01942568.5 (22) Date of filing: 17.01.2001

(51) International Patent Classification (IPC)7: D21C 9/00, C08B 5/14, C08B 15/00, A61L 15/28, A61L 15/60 (86) International application number: PCT/US0101/883 (87) International publication number: WO 0105/2911 (26.07.2001 Gazette 2001/30)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 19.01.2000 US 177031 P (71) Applicant: WEYERHAEUSER COMPANY Federal Way,Washington 98003 (US)	(72) Inventors: NEOGI, Amar, N. Kenmore, WA 98028 (US) YOUNG, Richard, H., Sr. Maple Valley, WA 98038 (US) PETERSEN, Brent, A. Seattle, WA 98116 (US) (74) Representative: Trueman, Lucy Petra et al Barker Brettell,138 Hagley Road,Edgbaston Birmingham B16 9PW Birmingham B16 9PW (GB)