(19)

(11)

EP 1 937 455 A2

(12)

(88) Date of publication A3: 02.08.2007 (43) Date of publication: 02.07.2008 Bulletin 2008/27 (21) Application number: 06820982.4 (22) Date of filing: 30.08.2006

(51) International Patent Classification (IPC):  B29C 45/47(2006.01) B29C 44/02(2006.01) (86) International application number: PCT/IB2006/003364 (87) International publication number: WO 2007/026257 (08.03.2007 Gazette 2007/10)

(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 NL PL PT RO SE SI SK TR (30) Priority: 02.09.2005 CA 2517995 02.09.2005 US 219309 (71) Applicants: Park, Chul B Ontario L5R 1V3 (US) Xu, Xiang Ontario, L5R 1V3 (CA)	(72) Inventors: Park, Chul B Ontario L5R 1V3 (US) Xu, Xiang Ontario, L5R 1V3 (CA) (74) Representative: Lawrence, John  Barker Brettell LLP 138 Hagley Road Edgbaston Birmingham B16 9PW Edgbaston Birmingham B16 9PW (GB)