(19)

(11)

EP 0 944 710 A1

(12)

(43) Date of publication: 29.09.1999 Bulletin 1999/39 (21) Application number: 97952416.0 (22) Date of filing: 12.12.1997

(51) International Patent Classification (IPC):  C11D 3/ 02( . ) C11D 3/ 10( . ) C11D 17/ 00( . ) C11D 3/ 08( . ) C11D 3/ 18( . ) (86) International application number: PCT/US1997/022918 (87) International publication number: WO 1998/026038 (18.06.1998 Gazette 1998/24)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 12.12.1996 GB 19960025973 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventors: MCGREGOR, Alasdair, Duncan Sandyford Newcastle upon Tyne (GB) WARWICK, Jane, Margaret Sunninghill Berkshire (GB) MCGOWAN, Steven, Baldwin S. Gosforth Newcastle upon Tyne (GB) (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)