(19)

(11)

EP 1 098 858 A1

(12)

(43) Date of publication: 16.05.2001 Bulletin 2001/20 (21) Application number: 99932758.8 (22) Date of filing: 30.06.1999

(51) International Patent Classification (IPC)7: C03C 13/00 (86) International application number: PCT/EP9904/513 (87) International publication number: WO 0000/444 (06.01.2000 Gazette 2000/01)

(84) Designated Contracting States: AT BE DE ES FI FR GB NL SE (30) Priority: 30.06.1998 GB 9814179 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: GULDBERG, Marianne DK-2860 Soborg (DK) JENSEN, Soren, Lund DK-2840 Holte (DK) (74) Representative: Jennings, Guy Kenneth  GILL JENNINGS & EVERY,Broadgate House,7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)