(19)

(11)

EP 2 235 749 A1

(12)

(43) Date of publication: 06.10.2010 Bulletin 2010/40 (21) Application number: 08862170.1 (22) Date of filing: 13.11.2008

(51) International Patent Classification (IPC):  H01L 23/29(2006.01) C08J 3/24(2006.01) C08L 63/00(2006.01) (86) International application number: PCT/US2008/083323 (87) International publication number: WO 2009/079122 (25.06.2009 Gazette 2009/26)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 18.12.2007 US 14483 P (71) Applicant: 3M Innovative Properties Company Saint Paul, MN 55133-3427 (US)	(72) Inventor: KROPP, Michael, A. Saint Paul, Minnesota 55133-3427 (US) (74) Representative: Vossius & Partner  P.O. Box 86 07 67 81634 München 81634 München (DE)