(19)

(11)

EP 0 646 167 A1

(12)

(43) Date of publication: 05.04.1995 Bulletin 1995/14 (21) Application number: 93914309.0 (22) Date of filing: 04.06.1993

(51) International Patent Classification (IPC):  C11D 1/ 72( . ) C11D 3/ 00( . ) C11D 3/ 12( . ) C11D 3/ 37( . ) C11D 17/ 08( . ) B01D 19/ 04( . ) C11D 3/ 08( . ) C11D 3/ 20( . ) C11D 17/ 00( . ) (86) International application number: PCT/US1993/005221 (87) International publication number: WO 1993/025652 (23.12.1993 Gazette 1993/30)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU NL PT SE (30) Priority: 06.06.1992 EP 19920201649 (71) Applicant: THE PROCTER & GAMBLE COMPANY Cincinnati, Ohio 45202 (US)	(72) Inventors: JONES, Roger, Jeffery B-1350 Jauche (BE) SURUTZIDIS, Athanasios B-1780 Wemmel (BE) BROECKX, Walter B-9240 Zele (BE) FISK, Andrew, Albon B-1853 Strombeek-Bever (BE) (74) Representative: Canonici, Jean-Jacques, et al  Procter & Gamble European Technical Center N.V. Temselaan 100 B-1853 Strombeek-Bever B-1853 Strombeek-Bever (BE)