(19)
(11) EP 1 111 113 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.09.2003 Bulletin 2003/36

(43) Date of publication A2:
27.06.2001 Bulletin 2001/26

(21) Application number: 01102183.9

(22) Date of filing: 24.03.1997
(51) International Patent Classification (IPC)7: D04H 1/70
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB IT LI NL SE
Designated Extension States:
SI

(30) Priority: 25.03.1996 CH 76896
02.09.1996 CH 216796
02.09.1996 CH 216996

(62) Application number of the earlier application in accordance with Art. 76 EPC:
97914299.9 / 0889981

(71) Applicants:
  • Rockwool International A/S
    2640 Hedehusene (DK)

    AT BE DE DK ES FI FR GB IT NL SE 
  • Flumroc AG
    8890 Flums (CH)

    CH LI 

(72) Inventors:
  • Wyss, Peter
    7320 Sargans (CH)
  • Zimmermann, Fredy
    8888 Heiligkreuz (CH)
  • Jacobsen, Bent
    4000 Roskilde (DK)

(74) Representative: Lawrence, Peter Robin Broughton 
GILL JENNINGS & EVERY, Broadgate House, 7 Eldon Street
London EC2M 7LH
London EC2M 7LH (GB)

   


(54) Process and apparatus for the production of a mineral fibreboard


(57) A multiply bonded mineral fibre board may be obtained by longitudinally compressing a fleece and then dividing it into two or more layers (43, 45), subjecting at least one of these layers to thickness compression and then recombining and bonding them, and preventing break-out of the tensioned sub-webs between the compression stage (53, 54) and a bonding stage (25).






Search report