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EP 1 740 880 A1

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(43) Date of publication: 10.01.2007 Bulletin 2007/02 (21) Application number: 05729222.9 (22) Date of filing: 14.03.2005

(51) International Patent Classification (IPC):  F21S 8/02(2006.01) F21V 5/00(2006.01) F21V 3/00(2006.01) F21S 8/04(2006.01) F21V 5/02(2006.01) (86) International application number: PCT/US2005/008573 (87) International publication number: WO 2005/106321 (10.11.2005 Gazette 2005/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 16.04.2004 EP 04076121 (71) Applicant: 3M Innovative Properties Company St. Paul, MN 55133-3427 (US)	(72) Inventor: PESENTI, Marcella, M. I-20090 Segrate (IT) (74) Representative: Hill, Cecilia Ann  3M Europe S.A. OIPC Hermeslaan 7 1831 Diegem 1831 Diegem (BE)