EP 1102904 A1 20010530 - BUILDING BOARD AND ITS PRODUCTION
Title (en)
BUILDING BOARD AND ITS PRODUCTION
Title (de)
BAUSTOFFPLATTE UND IHRE HERSTELLUNG
Title (fr)
FABRICATION DE PANNEAU DE CONSTRUCTION
Publication
Application
Priority
- GB 9902472 W 19990728
- GB 9816427 A 19980728
Abstract (en)
[origin: WO0006849A1] A building board comprising cementitious fibre board has first and second surface layers (20, 23) of fibres admixed with cementitious materials; and a core layer (21) of fibres admixed with cementitious material but of different composition from either of the surface layers and disposed between the surface layers and bonded thereto by interpenetrating crystal growth; and at least one layer of fibrous mesh (22) interposed between the core layer and at least one of the surface layers and bonded to each of the adjacent layers by the interpenetrating crystal growth. The board may be produced by successively spreading layers of surface and core mixes to form a fibrous cementitious assembly, with interposition of at least one layer of fibrous mesh between at least one pair of adjacent layers of the mixes; compressing the assembly to a predetermined thickness; and maintaining the pressure until hydration of the cementitious material in the assembly is substantially complete.
IPC 1-7
IPC 8 full level
B28B 1/52 (2006.01); C04B 28/14 (2006.01); E04C 2/04 (2006.01)
CPC (source: EP)
B28B 1/522 (2013.01); B28B 1/526 (2013.01); C04B 28/14 (2013.01); E04C 2/049 (2013.01); C04B 2111/00413 (2013.01); C04B 2111/00905 (2013.01); Y02W 30/91 (2015.05)
Citation (search report)
See references of WO 0006849A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0006849 A1 20000210; EP 1102904 A1 20010530; GB 9816427 D0 19980923; PL 345668 A1 20020102
DOCDB simple family (application)
GB 9902472 W 19990728; EP 99936795 A 19990728; GB 9816427 A 19980728; PL 34566899 A 19990728