(19)

(11)

EP 1 121 409 A1

(12)

(43) Date of publication: 08.08.2001 Bulletin 2001/32 (21) Application number: 99970415.8 (22) Date of filing: 06.10.1999

(51) International Patent Classification (IPC)7: C11D 3/37, C11D 3/22, C11D 17/06 (86) International application number: PCT/US9923/147 (87) International publication number: WO 0022/079 (20.04.2000 Gazette 2000/16)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 13.10.1998 US 103987 P 11.03.1999 GB 9905474 10.08.1999 US 148053 P (71) Applicant: The Procter & Gamble Company Cincinnati,Ohio 45202 (US)	(72) Inventor: HELTOVICS, Gabor Newcastle-upon-Tyne NE3 RT (GB) (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)