(19)

(11)

EP 1 456 444 A1

(12)

(43) Date of publication: 15.09.2004 Bulletin 2004/38 (21) Application number: 02805344.5 (22) Date of filing: 20.12.2002

(51) International Patent Classification (IPC)7: D04H 1/00 (86) International application number: PCT/EP2002/014640 (87) International publication number: WO 2003/054264 (03.07.2003 Gazette 2003/27)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 21.12.2001 EP 01310777 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: ZIMMERMANN, Fredy CH-8888 Heiligkreuz (CH) ACKERMANN, Hans-Peter CH-8880 Walenstadt (CH) (74) Representative: Lawrence, Peter Robin Broughton  Gill Jennings & EveryBroadgate House7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)