(19)

(11)

EP 1 093 512 A2

(12)

(88) Date of publication A3: 20.07.2000 (43) Date of publication: 25.04.2001 Bulletin 2001/17 (21) Application number: 99951372.4 (22) Date of filing: 08.07.1999

(51) International Patent Classification (IPC)7: C11D 3/39 (86) International application number: PCT/US9915/317 (87) International publication number: WO 0003/369 (20.01.2000 Gazette 2000/03)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 08.07.1998 US 92012 P (71) Applicant: The Procter & Gamble Company Cincinnati,Ohio 45202 (US)

(72) Inventors: STARK, Cynthia, Marie Cincinnati, OH 45239 (US) BURNS, Michael, Eugene Hamilton, OH 45011 (US) HARTSHORN, Richard, Timothy Wylam Northumberland NE41 8EY (GB) BURCKETT-ST. LAURENT, James Charles Theophile R. Cincinnati, OH 45249 (US) MIRACLE, Gregory, Scot Hamilton, OH 45013 (US) (74) Representative: Peet, Jillian Wendy et al Patent DepartmentProcter & Gamble Technical Centres LimitedWhitley RoadLongbenton Newcastle upon Tyne, NE12 9TS Newcastle upon Tyne, NE12 9TS (GB)