(19)

(11)

EP 0 929 634 A2

(12)

(43) Date of publication: 21.07.1999 Bulletin 1999/29 (21) Application number: 97945301.0 (22) Date of filing: 01.10.1997

(51) International Patent Classification (IPC):  C11D 3/ 00( . ) C11D 3/ 386( . ) C11D 3/ 37( . ) (86) International application number: PCT/US1997/017308 (87) International publication number: WO 1998/015608 (16.04.1998 Gazette 1998/15)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE (30) Priority: 07.10.1996 US 19960027902P (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)

(72) Inventors: PANANDIKER, Rajan, Keshav West Chester, OH 45069 (US) PRAMOD, Kakumanu West Chester, OH 45069 (US) de BUZZACCARINI, Francesco B-1050 Brussels (BE) KAHN, Jay, Ian Cincinnati, OH 45208 (US) CONNOR, Daniel, Stedham Cincinnati, OH 45251 (US) KONG-CHAN, Josephine, Ling Cincinnati, OH 45249 (US) GOSSELINK, Eugene, Paul Cincinnati, OH 45251 (US) OHTANI, Ryohei Hyogo 633 (JP) YASUDA, Kinuko Yogo 658 (JP) LEUPIN, Jennifer, Ann Cincinnati, OH 45249 (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)