(19)

(11)

EP 1 115 671 A1

(12)

(43) Date of publication: 18.07.2001 Bulletin 2001/29 (21) Application number: 99948858.8 (22) Date of filing: 24.09.1999

(51) International Patent Classification (IPC)7: C03C 25/10 (86) International application number: PCT/EP9907/122 (87) International publication number: WO 0017/123 (30.03.2000 Gazette 2000/13)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 24.09.1998 EP 98307761 09.07.1999 GB 9916174 09.07.1999 GB 9916175 09.07.1999 GB 9916176 15.09.1999 GB 9921842 (71) Applicant: Rockwool International A/S DK-2640 Hedehusene (DK)	(72) Inventor: CRIDLAND, Ian DK-2720 Vanlose (DK) (74) Representative: Lawrence, Peter Robin Broughton  Gill Jennings & EveryBroadgate House7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)