(19)

(11)

EP 1 527 037 A1

(12)

(43) Date of publication: 04.05.2005 Bulletin 2005/18 (21) Application number: 03767265.6 (22) Date of filing: 06.08.2003

(51) International Patent Classification (IPC)7: C07C 37/20 (86) International application number: PCT/US2003/024674 (87) International publication number: WO 2004/013075 (12.02.2004 Gazette 2004/07)

(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 PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 06.08.2002 US 213580 11.04.2003 US 412180 (71) Applicant: CALGON CARBON CORPORATION PittsburghPennsylvania 15205 (US)	(72) Inventors: CHIANG, Chen-Chou Wexford, PA 15090 (US) FAIR, David, L. Imperial, PA 15126 (US) (74) Representative: Müller-Boré & PartnerPatentanwälte  Grafinger Strasse 2 81671 München 81671 München (DE)