(19)

(11)

EP 0 901 511 A1

(12)

(43) Date of publication: 17.03.1999 Bulletin 1999/11 (21) Application number: 97925391.0 (22) Date of filing: 25.03.1997

(51) International Patent Classification (IPC):  C11D 3/ 33( . ) C11D 3/ 386( . ) C11D 3/ 37( . ) (86) International application number: PCT/US1997/004925 (87) International publication number: WO 1997/036975 (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 19960006714 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)

(72) Inventors: WILLIAMS, Fiona, Susan Newcastle upon Tyne NE3 5DF (GB) KITKO, David, Jonathan Cincinnati, OH 45241 (US) MURATA, Susumu Amagasaki, Hyogo 660 (JP) TSUNETSUGU, Toshiko Higashinada-ku, Kobe 658 (JP) TSUNETSUGU, Shuichi Higashinada-ku, Kobe 658 (JP) (74) Representative: Engisch, Gautier, et al  BVBA Procter & Gamble Europe SPRL, Temselaan 100 1853 Strombeek-Bever 1853 Strombeek-Bever (BE)