(19)

(11)

EP 1 663 635 A1

(12)

(43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04764897.7 (22) Date of filing: 07.09.2004

(51) International Patent Classification (IPC):  B31F 1/14(1968.09) (86) International application number: PCT/EP2004/009954 (87) International publication number: WO 2005/023533 (17.03.2005 Gazette 2005/11)

(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: 08.09.2003 SE 0302400 24.03.2004 US 807397 (71) Applicant: BTG Eclépens S.A. 1312 Eclépens (CH)	(72) Inventors: FRETI, Silvano CH-1162 St. Prex (CH) LAITHIER, Jean, Francois CH-1305 Penthalaz (CH) (74) Representative: Pierrou, Mattias  Awapatent AB, P.O. Box 45 086 104 30 Stockholm 104 30 Stockholm (SE)