(19)

(11)

EP 1 187 801 A1

(12)

(43) Date of publication: 20.03.2002 Bulletin 2002/12 (21) Application number: 99957434.6 (22) Date of filing: 04.12.1999

(51) International Patent Classification (IPC)7: C07C 61/08 (86) International application number: PCT/KR9900/739 (87) International publication number: WO 0046/174 (10.08.2000 Gazette 2000/32)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 05.02.1999 KR 9904025 03.09.1999 KR 9937508 (71) Applicant: Korea Kumho Petrochemical Co. Ltd. Seoul 110-110 (KR)	(72) Inventors: JOO, Young, J. Yuseong-gu,Taejeon 305-345 (KR) KIM, Jin-Eok Yuseong-gu,Taejeon 305-345 (KR) KIM, Chang-Min Yuseong-gu,Taejeon 305-345 (KR) WON, Jeong-Im Yuseong-gu,Taejeon 305-345 (KR) JOO, Hyun-Sang Yuseong-gu,Taejeon 305-390 (KR) (74) Representative: Kador & Partner  Corneliusstrasse 15 80469 München 80469 München (DE)