(19)

(11)

EP 1 131 399 A1

(12)

(43) Date of publication: 12.09.2001 Bulletin 2001/37 (21) Application number: 99961670.9 (22) Date of filing: 16.11.1999

(51) International Patent Classification (IPC)7: C11D 11/00, C11D 3/22, C11D 3/37, C11D 3/382, C11D 3/384 (86) International application number: PCT/US9926/968 (87) International publication number: WO 0029/539 (25.05.2000 Gazette 2000/21)

(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: 16.11.1998 US 108600 P (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati,Ohio 45202 (US)

(72) Inventors: KASTURI, Chandrika Cincinnati, OH 45241 (US) SCHEPER, William, Michael Lawrenceburg, IN 47025 (US) LIN, Peter, Yau-Tak Middletown, OH 45044 (US) BAKER, Keith, Homer Cincinnati, OH 45241 (US) EL-NOKALY, Magda Cincinnati, OH 45208 (US) (74) Representative: Brooks, Maxim Courtney et al Procter & Gamble Technical Centres Limited,Whitley Road,Longbenton Newcastle upon Tyne NE12 9TS Newcastle upon Tyne NE12 9TS (GB)