(19)

(11)

EP 0 636 166 A1

(12)

(43) Date of publication: 01.02.1995 Bulletin 1995/05 (21) Application number: 93907544.0 (22) Date of filing: 18.03.1993

(51) International Patent Classification (IPC):  C11D 1/ 94( . ) C11D 1/ 10( . ) C11D 1/ 66( . ) C11D 1/ 90( . ) C11D 3/ 38( . ) C11D 1/ 29( . ) C11D 1/ 88( . ) (86) International application number: PCT/US1993/002411 (87) International publication number: WO 1993/019149 (30.09.1993 Gazette 1993/24)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI (30) Priority: 25.03.1992 GB 19920006465 23.01.1993 GB 19930001303 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventors: GIRET, Michel Joseph Sunninghill, Berkshire SL5 9BF (GB) LANGLOIS, Anne Staines, Middlesex TW18 2LH (GB) DUKE, Roland Philip Wokingham, Berkshire RG11 2NB (GB) (74) Representative: Brooks, Maxim Courtney, et al  Procter & Gamble Limited Whitley Road Longbenton Newcastle-upon-Tyne NE12 9TS Newcastle-upon-Tyne NE12 9TS (GB)