(19)

(11)

EP 2 729 616 A1

(12)

(43) Date of publication: 14.05.2014 Bulletin 2014/20 (21) Application number: 12734786.2 (22) Date of filing: 03.07.2012

(51) International Patent Classification (IPC):  E01B 1/00(2006.01) E01B 19/00(2006.01) (86) International application number: PCT/DK2012/050244 (87) International publication number: WO 2013/004242 (10.01.2013 Gazette 2013/02)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 06.07.2011 EP 11172903 (71) Applicant: Rockwool International A/S 2640 Hedehusene (DK)	(72) Inventors: GYLOV, Hans Henrik DK-2840 Holte (DK) GATZWILLER, Kevin Bo DK-3450 Allerød (DK) (74) Representative: Trier, Mikkel Roed et al Awapatent A/S Rigensgade 11 1316 Copenhagen K 1316 Copenhagen K (DK)