EP 1387913 A1 20040211 - INSULATING PARTITION COMPRISING CELLULOSE AND ADAPTED CELLULOSIC MATERIAL
Title (en)
INSULATING PARTITION COMPRISING CELLULOSE AND ADAPTED CELLULOSIC MATERIAL
Title (de)
ISOLIERWAND MIT ZELLULOSE UND ANGEPASSTES ZELLSTOFFMATERIAL
Title (fr)
CLOISON ISOLANTE COMPORTANT DE LA CELLULOSE ET MATERIAU CELLULOSIQUE ADAPTE
Publication
Application
Priority
- FR 0201540 W 20020503
- FR 0106036 A 20010504
Abstract (en)
[origin: WO02090682A1] The invention concerns a sound insulation partition comprising a frame (21, 22), two walls (31, 32) including each at least a substantially rigid covering, at least a thickness of fibrous acoustic media, the walls being arranged substantially parallel at a distance <u>l</u> between them and fixed on the frame. The invention is characterised in that the fibrous acoustic media is a substantially homogeneous self-supporting rectangular cellulosic mat having a density ranging between 200 and 800 kg/m<3>, said mat essentially consisting of fibres derived from the treatment of practically lignin-free recycled papers or paperboards, the bond between the fibres within the mat being obtained at least partly during the production of the mat by wet process, said mat having a thickness <u>e</u> such that <u>e</u> < <u>l</u> and the noise insulation class input by the absorbent inside said partition represented by DELTA Rw and measured in accordance with the NF EN ISO 140-1, 143-3, NF EN 20140-2 and ISO 717/1 standards is at least 2 dB.
IPC 1-7
IPC 8 full level
E04B 2/74 (2006.01)
CPC (source: EP)
E04B 2/7411 (2013.01)
Citation (search report)
See references of WO 02090682A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02090682 A1 20021114; EP 1387913 A1 20040211; FR 2824343 A1 20021108; FR 2824343 B1 20031212
DOCDB simple family (application)
FR 0201540 W 20020503; EP 02730393 A 20020503; FR 0106036 A 20010504