(19)

(11)

EP 1 047 764 A1

(12)

(43) Date of publication: 02.11.2000 Bulletin 2000/44 (21) Application number: 98958365.3 (22) Date of filing: 17.12.1998

(51) International Patent Classification (IPC)7: C11D 17/00, C11D 3/36 (86) International application number: PCT/IB9802/050 (87) International publication number: WO 9931/215 (24.06.1999 Gazette 1999/25)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 17.12.1997 GB 9726604 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati,Ohio 45202 (US)	(72) Inventors: ROWLAND, Barry Sunderland SR2 9HW (GB) CRUICKSHANK, Graeme Duncan Whitley Road,Benton,Newcastle upn Tyne (GB) (74) Representative: Brooks, Maxim Courtney  Procter & Gamble Technical Centres Limited,Whitley Road,Longbenton Newcastle upon Tyne NE12 9TS Newcastle upon Tyne NE12 9TS (GB)