(19)

(11)

EP 1 551 612 A1

(12)

(43) Date of publication: 13.07.2005 Bulletin 2005/28 (21) Application number: 03794424.6 (22) Date of filing: 12.06.2003

(51) International Patent Classification (IPC)7: B29C 33/38, B29C 39/02, B32B 9/04 (86) International application number: PCT/US2003/018732 (87) International publication number: WO 2004/022301 (18.03.2004 Gazette 2004/12)

(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: 06.09.2002 US 236667 09.09.2002 US 409686 P (71) Applicant: Polyrock Technologies, LLC Greenwood Village, CO 80111 (US)	(72) Inventor: HARRINGTON, Bruce, E. Superior, CO 80027 (US) (74) Representative: Bohnenberger, Johannes, Dr. et al Meissner, Bolte & PartnerPostfach 86 06 24 81633 München 81633 München (DE)