(19)

(11)

EP 1 758 837 A1

(12)

(43) Date of publication: 07.03.2007 Bulletin 2007/10 (21) Application number: 05746091.7 (22) Date of filing: 27.05.2005

(51) International Patent Classification (IPC):  C04B 35/80(2006.01) (86) International application number: PCT/KR2005/001581 (87) International publication number: WO 2005/115945 (08.12.2005 Gazette 2005/49)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 28.05.2004 KR 2004038589 (71) Applicant: DACC Co. Ltd. Changwon-si Gyeongsangnamdo 641-120 (KR)	(72) Inventors: LIM, Dong Won Gimhae-si Gyeongsangnam-do 621-800 (KR) PARK, Hong Sik Changwon-si Gyeongsangnam-do 641-010 (KR) CHO, Dae Hyun Changwon-Si, Gyeongsangnam-do 641-010 (KR) SHIN, Hyun Kyu Changwon-si Gyeongsangnam-do 641-010 (KR) (74) Representative: Flaccus, Rolf-Dieter  Patentanwalt Bussardweg 10 50389 Wesseling 50389 Wesseling (DE)