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(11)

EP 1 015 539 A1

(12)

(43) Date of publication: 05.07.2000 Bulletin 2000/27 (21) Application number: 98929053.1 (22) Date of filing: 12.06.1998

(51) International Patent Classification (IPC)7: C11D 3/00, C11D 7/18, C11D 7/54, C11D 9/42 (86) International application number: PCT/US9812/325 (87) International publication number: WO 9913/037 (18.03.1999 Gazette 1999/11)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 11.09.1997 GB 9719231 11.09.1997 GB 9719235 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati,Ohio 45202 (US)

(72) Inventors: MASON, Susan Judith Tyne & Wear NE26 1AF (GB) GRIPPAY, Ludivine, Pascale, Marie Newcastle upon Tyne NE2 2RJ (GB) GUEDIRA, Nour-Eddine Newcastle upon Tyne NE2 2TA (GB) BROWN, Donald, Ray Middletown, OH 45044 (US) MELLEA, Michelle, Frances Hamilton, OH 45013 (US) (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)