(19)

(11)

EP 1 280 963 A1

(12)

(43) Date of publication: 05.02.2003 Bulletin 2003/06 (21) Application number: 01938163.1 (22) Date of filing: 04.05.2001

(51) International Patent Classification (IPC)7: E01F 8/00 (86) International application number: PCT/EP0105/062 (87) International publication number: WO 0108/6070 (15.11.2001 Gazette 2001/46)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 09.05.2000 GB 0011188 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: ANDERSEN, Claus, Voigt DK-2625 Vallensbaek (DK) PULLEMAN, Leo, A. NL-4651 CN Steenbergen (NL) (74) Representative: Samuels, Lucy Alice  Gill Jennings & EveryBroadgate House7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)