(19)

(11)

EP 0 710 276 A1

(12)

(43) Date of publication: 08.05.1996 Bulletin 1996/19 (21) Application number: 94922250.0 (22) Date of filing: 30.06.1994

(51) International Patent Classification (IPC):  C11D 13/ 10( . ) C11D 13/ 14( . ) C11D 11/ 00( . ) C11D 17/ 00( . ) (86) International application number: PCT/EP1994/002153 (87) International publication number: WO 1995/003392 (02.02.1995 Gazette 1995/06)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI NL PT SE (30) Priority: 23.07.1993 EP 19930202179 (71) Applicant: UNICHEMA CHEMIE B.V. NL-2802 BE Gouda (NL)	(72) Inventors: DUMAS, Eric, Jacques, P. NL-3511 LX Utrecht (NL) HELMOND, Johannes NL-2804 WC Gouda (NL) (74) Representative: Dekker, Enno E.J., et al  Unilever N.V. Patents Division P.O. Box 137 NL-3130 AC Vlaardingen NL-3130 AC Vlaardingen (NL)