(19)

(11)

EP 0 907 703 A1

(12)

(43) Date of publication: 14.04.1999 Bulletin 1999/15 (21) Application number: 97921413.0 (22) Date of filing: 25.04.1997

(51) International Patent Classification (IPC):  C11D 1/ 62( . ) C11D 3/ 37( . ) C11D 3/ 00( . ) C11D 3/ 386( . ) (86) International application number: PCT/US1997/007056 (87) International publication number: WO 1997/042291 (13.11.1997 Gazette 1997/49)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 03.05.1996 US 19960016526P (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventors: PANANDIKER, Rajan, Keshav West Chester, OH 45069 (US) WERTZ, William, Conrad West Harrison, IN 47060 (US) GHOSH, Chanchal, Kumar West Chester, OH 45069 (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)