(19)

(11)

EP 1 623 055 A2

(12)

(88) Date of publication A3: 06.05.2005 (43) Date of publication: 08.02.2006 Bulletin 2006/06 (21) Application number: 04727661.3 (22) Date of filing: 15.04.2004

(51) International Patent Classification (IPC):  C25C 3/08(1974.07) (86) International application number: PCT/IB2004/050457 (87) International publication number: WO 2004/092449 (28.10.2004 Gazette 2004/44)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 17.04.2003 WO PCT/IB03/01472 09.09.2003 WO PCT/IB03/04043 (71) Applicant: MOLTECH Invent S.A. 1520 Luxembourg (LU)	(72) Inventors: NGUYEN, Thinh, T. CH-1213 ONEX (CH) DE NORA, Vittorio NASSAU (BS) (74) Representative: Cronin, Brian Harold John  c/o Moltech S.A., Quai du Mont-Blanc 21 1201 Geneva 1201 Geneva (CH)