(19)

(11)

EP 1 853 762 A1

(12)

(43) Date of publication: 14.11.2007 Bulletin 2007/46 (21) Application number: 05724378.4 (22) Date of filing: 02.03.2005

(51) International Patent Classification (IPC):  D21H 19/52(2006.01) (86) International application number: PCT/US2005/006819 (87) International publication number: WO 2006/093497 (08.09.2006 Gazette 2006/36)

(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 MC NL PL PT RO SE SI SK TR (71) Applicant: HERCULES INCORPORATED Wilmington, DE 19894-0001 (US)	(72) Inventor: BURDICK, Charles, L. Landenberg, PA 198350 (US) (74) Representative: HOFFMANN EITLE  Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)