(19)

(11)

EP 2 007 674 A2

(12)

(88) Date of publication A3: 26.06.2008 (43) Date of publication: 31.12.2008 Bulletin 2009/01 (21) Application number: 07754543.2 (22) Date of filing: 30.03.2007

(51) International Patent Classification (IPC):  C01B 3/36(2006.01) C10J 3/54(2006.01) C10J 3/46(2006.01) (86) International application number: PCT/US2007/008033 (87) International publication number: WO 2007/123776 (01.11.2007 Gazette 2007/44)

(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: 31.03.2006 US 788238 P 20.09.2006 US 846063 P (71) Applicant: The Trustees of Columbia University in the City of New York New York, New York 10027 (US)	(72) Inventors: CASTALDI, Marco, J. Yonkers, NY 10704 (US) DOOHER, John Garden City, NY 11530 (US) LACKNER, Klaus, S. Dobbs Ferry, NY 10522 (US) (74) Representative: Klunker . Schmitt-Nilson . Hirsch  Winzererstrasse 106 80797 München 80797 München (DE)