(19)

(11)

EP 1 115 831 A1

(12)

(43) Date of publication: 18.07.2001 Bulletin 2001/29 (21) Application number: 98948561.0 (22) Date of filing: 25.09.1998

(51) International Patent Classification (IPC)7: C11D 17/00, C11D 3/39, C11D 17/06, C11D 3/12 (86) International application number: PCT/US9820/221 (87) International publication number: WO 0018/869 (06.04.2000 Gazette 2000/14)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE (71) Applicant: The Procter & Gamble Company Cincinnati,Ohio 45202 (US)	(72) Inventors: HARTSHORN, Richard Timothy Wylam,Northumberland NE41 8EY (GB) ALAM, Zayeed Newcastle upon Tyne NE3 2XY (GB) NORWOOD, Kevin Cincinnati, OH 45217 (US) (74) Representative: Peet, Jillian Wendy et al Procter & Gamble Technical Centres Limited,Whitley Road,Longbenton Newcastle upon Tyne NE12 9TS Newcastle upon Tyne NE12 9TS (GB)