(19)

(11)

EP 1 228 177 A2

(12)

(88) Date of publication A3: 21.02.2002 (43) Date of publication: 07.08.2002 Bulletin 2002/32 (21) Application number: 00972351.1 (22) Date of filing: 23.10.2000

(51) International Patent Classification (IPC)7: C11D 3/04, C11D 3/10, C11D 3/20 (86) International application number: PCT/US0029/295 (87) International publication number: WO 0130/949 (03.05.2001 Gazette 2001/18)

(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: 28.10.1999 GB 9925472 (71) Applicant: The Procter & Gamble Company Cincinnati,Ohio 45202 (US)	(72) Inventors: DOVEY, Anthony Northumberland NE65 9JT (GB) DODDS, Alistair, Patrick Doxford Park, Sunderland SR2 2SS (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)