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(11)

EP 0 934 380 A1

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(43) Date of publication: 11.08.1999 Bulletin 1999/32 (21) Application number: 97945462.0 (22) Date of filing: 02.10.1997

(51) International Patent Classification (IPC):  C11D 1/ 22( . ) C11D 1/ 62( . ) C11D 1/ 66( . ) C11D 1/ 86( . ) C11D 3/ 12( . ) C11D 3/ 39( . ) C11D 1/ 52( . ) C11D 1/ 28( . ) C11D 1/ 65( . ) C11D 1/ 835( . ) C11D 3/ 10( . ) C11D 3/ 37( . ) C11D 1/ 14( . ) C11D 1/ 72( . ) (86) International application number: PCT/US1997/017817 (87) International publication number: WO 1998/017760 (30.04.1998 Gazette 1998/17)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 18.10.1996 GB 19960021791 20.03.1997 GB 19970005750 16.05.1997 WO 1997US08315 24.05.1997 GB 19970010715 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)

(72) Inventors: BROOKER, Alan Thomas Newcastle upon Tyne NE3 5NE (GB) BROOKER, Anju Deepali Massey Newcastle upon Tyne NE3 5NE (GB) MOSS, Michael Alan John Northumberland NE43 7DZ (GB) INGRAM, Barry Thomas Tyne & Wear NE26 1JE (GB) (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)