(19)

(11)

EP 0 904 340 A2

(12)

(43) Date of publication: 31.03.1999 Bulletin 1999/13 (21) Application number: 97933128.0 (22) Date of filing: 25.03.1997

(51) International Patent Classification (IPC):  C11D 3/ 33( . ) (86) International application number: PCT/US1997/005361 (87) International publication number: WO 1997/036974 (09.10.1997 Gazette 1997/43)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 29.03.1996 GB 19960006704 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventor: WILLIAMS, Fiona, Susan Newcastle upon Tyne NE3 5DF (GB) (74) Representative: Engisch, Gautier, et al  BVBA Procter & Gamble Europe SPRL, Temselaan 100 1853 Strombeek-Bever 1853 Strombeek-Bever (BE)