(19)

(11)

EP 0 970 173 A1

(12)

(43) Date of publication: 12.01.2000 Bulletin 2000/02 (21) Application number: 97946470.8 (22) Date of filing: 30.10.1997

(51) International Patent Classification (IPC)7: C11D 3/10, C11D 3/39, C11D 3/395, C11D 7/54 (86) International application number: PCT/US9719/954 (87) International publication number: WO 9820/096 (14.05.1998 Gazette 1998/19)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 01.11.1996 GB 9622845 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati,Ohio 45202 (US)	(72) Inventor: BUNCE, Samantha, Justine Hampshire GU12 6SU (GB) (74) Representative: Clemo, Nicholas Graham et al Procter & GambleTechnical Centres LimitedPatent DepartmentLovett HouseLovett Road Staines, Middlesex TW18 3AZ Staines, Middlesex TW18 3AZ (GB)