(19)

(11)

EP 0 820 503 A1

(12)

(43) Date of publication: 28.01.1998 Bulletin 1998/05 (21) Application number: 96909119.0 (22) Date of filing: 22.03.1996

(51) International Patent Classification (IPC):  C11D 1/ 29( . ) C11D 1/ 88( . ) C11D 1/ 94( . ) C11D 11/ 00( . ) C11D 1/ 14( . ) C11D 1/ 90( . ) C11D 3/ 02( . ) C11D 17/ 04( . ) (86) International application number: PCT/EP1996/001283 (87) International publication number: WO 1996/032464 (17.10.1996 Gazette 1996/46)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 10.04.1995 BR 19950001520 17.05.1995 BR 19950002064 17.07.1995 BR 19950003351 (71) Applicants: UNILEVER PLC London EC4P 4BQ (GB) UNILEVER N.V. 3013 AL Rotterdam (NL)	(72) Inventors: HELFANT, Beatrice, Michelin 01203-002-S o Paulo, SP (BR) LUNA, Amauri, Zanini 13015-191-Campinas, SP (BR) LUPPY, Eduardo, Jr. 13041-670-Campinas, SP (BR) MARCHANT, Pablo, Andres, Marques Santiago (CL) (74) Representative: Elliott, Peter William, et al  Unilever plc Patent Division Colworth House Sharnbrook Bedford MK44 1LQ Bedford MK44 1LQ (GB)