(19)

(11)

EP 1 470 285 A1

(12)

(43) Date of publication: 27.10.2004 Bulletin 2004/44 (21) Application number: 03708903.4 (22) Date of filing: 29.01.2003

(51) International Patent Classification (IPC)7: D06N 7/00, D06N 3/00, C03C 25/10, A47C 27/00 (86) International application number: PCT/US2003/002780 (87) International publication number: WO 2003/064757 (07.08.2003 Gazette 2003/32)

(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 SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 29.01.2002 US 352691 P 29.01.2002 US 352692 P 29.01.2002 US 352693 P (71) Applicant: Elk Premium Building Products, Inc. Dallas, TX 75240-8871 (US)	(72) Inventor: AHLUWALIA, Younger Desoto, TX 75115 (US) (74) Representative: Schwarz, Albin, Dr.  PatentanwaltWipplingerstrasse 32/22 1010 Wien 1010 Wien (AT)