(19)

(11)

EP 1 353 749 A2

(12)

(88) Date of publication A3: 20.06.2002 (43) Date of publication: 22.10.2003 Bulletin 2003/43 (21) Application number: 01963448.4 (22) Date of filing: 05.09.2001

(51) International Patent Classification (IPC)7: B01J 27/188, C07C 67/08, C07C 67/04 (86) International application number: PCT/JP0107/709 (87) International publication number: WO 0202/0158 (14.03.2002 Gazette 2002/11)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 07.09.2000 JP 2000271416 10.10.2000 US 238431 P (71) Applicant: SHOWA DENKO K.K. Tokyo 105-8518 (JP)	(72) Inventors: KADOWAKI, Etsuko,C/O OITA PLANT, SHOWA DENKO K.K. Oita-shi,Oita 870-0189 (JP) NARUMI, Kousuke,C/O OITA PLANT, SHOWA DENKO K.K. Oita-shi,Oita 870-0189 (JP) UCHIDA, Hiroshi,C/O OITA PLANT, SHOWA DENKO K.K. Oita-shi,Oita 870-0189 (JP) (74) Representative: Strehl Schübel-Hopf & Partner  Maximilianstrasse 54 80538 München 80538 München (DE)