(19)

(11)

EP 1 588 000 A1

(12)

(43) Date of publication: 26.10.2005 Bulletin 2005/43 (21) Application number: 04704142.1 (22) Date of filing: 21.01.2004

(51) International Patent Classification (IPC)7: E04H 9/14 (86) International application number: PCT/US2004/002130 (87) International publication number: WO 2004/065729 (05.08.2004 Gazette 2004/32)

(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: 21.01.2003 US 441535 P (71) Applicant: E.I. DU PONT DE NEMOURS AND COMPANY Wilmington, DE 19898 (US)	(72) Inventor: HANKS, Jeffrey, Alan Midlothian, Virginia 23112 (US) (74) Representative: Gritschneder, Martin et al Abitz & Partner Poschingerstrasse 6 81679 München 81679 München (DE)