EP 1742980 A1 20070117 - OPEN-CELL FOAM MATERIALS, METHOD FOR PRODUCING THEM AND THEIR USE
Title (en)
OPEN-CELL FOAM MATERIALS, METHOD FOR PRODUCING THEM AND THEIR USE
Title (de)
OFFENZELLIGE SCHAUMSTOFFE, VERFAHREN ZU IHRER HERSTELLUNG UND IHRE VERWENDUNG
Title (fr)
SUBSTANCES ALVEOLAIRES A ALVEOLES OUVERTES, LEUR PROCEDE DE PRODUCTION, ET LEUR UTILISATION
Publication
Application
Priority
- EP 2005003920 W 20050414
- DE 102004019708 A 20040420
- DE 102005011044 A 20050308
Abstract (en)
[origin: WO2005103107A1] The invention relates to modified open-cell foam materials having a density ranging from 5 to 1000 kg/m<3>, an average pore diameter ranging from 1 ñm to 1 mm, a BET-surface ranging from 0.1 to 50 m<2>/g and a sound absorption factor of more than 50 % at a frequency of 2000 Hz and a layer thickness of 50 mm. The inventive foam materials comprise, in the range of 1 to 4000 ppm, based on the weight of the unmodified open-cell foam material, fixed particles (b) having an average diameter (number average) in the range of from 5 nm to 900 nm.
IPC 8 full level
C08G 12/32 (2006.01); C08G 18/38 (2006.01); C08G 18/77 (2006.01); C08G 18/79 (2006.01); C08G 18/80 (2006.01); C08J 9/00 (2006.01); C08J 9/14 (2006.01); C08J 9/224 (2006.01); C08J 9/40 (2006.01); C08L 61/00 (2006.01); C08L 75/04 (2006.01)
CPC (source: EP KR US)
C08G 12/00 (2013.01 - KR); C08G 18/3895 (2013.01 - EP US); C08G 18/778 (2013.01 - EP US); C08G 18/792 (2013.01 - EP US); C08G 18/807 (2013.01 - EP US); C08G 18/809 (2013.01 - EP US); C08J 9/00 (2013.01 - KR); C08J 9/008 (2013.01 - EP US); C08J 9/009 (2013.01 - EP US); C08J 9/14 (2013.01 - KR); C08J 9/36 (2013.01 - KR); C08G 2101/00 (2013.01 - EP US); C08J 2205/05 (2013.01 - EP US)
Citation (search report)
See references of WO 2005103107A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005103107 A1 20051103; CN 1942501 A 20070404; CN 1942501 B 20101110; DE 102004019708 A1 20051117; EP 1742980 A1 20070117; JP 2007533806 A 20071122; KR 100817379 B1 20080327; KR 20070004976 A 20070109; US 2007213417 A1 20070913
DOCDB simple family (application)
EP 2005003920 W 20050414; CN 200580011825 A 20050414; DE 102004019708 A 20040420; EP 05733253 A 20050414; JP 2007508786 A 20050414; KR 20067024027 A 20061116; US 54747405 A 20050414