(19)

(11)

EP 0 975 723 A1

(12)

(43) Date of publication: 02.02.2000 Bulletin 2000/05 (21) Application number: 98910944.2 (22) Date of filing: 14.04.1998

(51) International Patent Classification (IPC)7: C11D 3/00, C11D 17/06, C11D 3/20, C11D 3/10, C11D 1/12, C11D 1/66, C11D 1/72, C11D 1/825 (86) International application number: PCT/IB9800/560 (87) International publication number: WO 9846/715 (22.10.1998 Gazette 1998/42)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 14.04.1997 EP 97870048 03.03.1998 GB 9804461 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati,Ohio 45202 (US)	(72) Inventors: BROOKER, Alan, Thomas Newcastle-upon-Tyne NE3 5NE (GB) HEINZMAN, Stephen, Wayne Tyne & Wear NE26 4QW (GB) INGRAM, Barry, Thomas Tyne & Wear NE26 1JE (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)