(19)

(11)

EP 2 015 930 A1

(12)

(43) Date of publication: 21.01.2009 Bulletin 2009/04 (21) Application number: 07809034.7 (22) Date of filing: 30.04.2007

(51) International Patent Classification (IPC):  B32B 5/18(2006.01) B32B 29/00(2006.01) B32B 5/20(2006.01) E04C 2/296(2006.01) (86) International application number: PCT/US2007/010439 (87) International publication number: WO 2007/142761 (13.12.2007 Gazette 2007/50)

(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 LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 03.05.2006 US 797143 P (71) Applicant: DOW GLOBAL TECHNOLOGIES INC. Midland MI 48674 (US)	(72) Inventors: DEWILDT, Dean, P. Midland, MI 48642 (US) MAZOR, Michael, H. Midland, MI 48642 (US) (74) Representative: Chandrani, Vandita et al Beck Greener Fulwood House 12 Fulwood Place London WC1V 6HR 12 Fulwood Place London WC1V 6HR (GB)