(19)

(11)

EP 0 975 720 A1

(12)

(43) Date of publication: 02.02.2000 Bulletin 2000/05 (21) Application number: 98906216.1 (22) Date of filing: 11.02.1998

(51) International Patent Classification (IPC)7: C11D 1/40, C11D 1/42, C11D 1/44, C11D 1/48, C11D 1/62 (86) International application number: PCT/US9802/366 (87) International publication number: WO 9835/003 (13.08.1998 Gazette 1998/32)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 11.02.1997 GB 9702731 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati,Ohio 45202 (US)	(72) Inventors: HEINZMAN, Stephen, Wayne Whitley Bay NE26 4QW (GB) INGRAM, Barry, Thomas Whitley BayTyne & 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)