EP 1899949 B1 20181024 - SOUNDPROOFING ASSEMBLY, USE FOR SOUNDPROOFING ENCLOSURES, AND METHOD FOR MAKING SAME
Title (en)
SOUNDPROOFING ASSEMBLY, USE FOR SOUNDPROOFING ENCLOSURES, AND METHOD FOR MAKING SAME
Title (de)
LÄRMSCHUTZBAUGRUPPE, VERWENDUNG FÜR DEN LÄRMSCHUTZ VON GEHÄUSEN UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
ENSEMBLE D'INSONORISATION, APPLICATION A L'INSONORISATION D' ESPACES CLOS , ET PROCEDE DE FABRICATION
Publication
Application
Priority
- FR 2006001650 W 20060707
- FR 0507271 A 20050707
Abstract (en)
[origin: WO2007006950A1] The invention concerns a soundproofing assembly comprising stacked layers in the form of a first set of layers (36) having good resistance to the passage of air, and a second set of layers (24) with mass-spring function including a layer (28) having a heavy viscoelastic mass and a spring type layer (26); the first set of layers includes a layer (36) of a foam with open cells of high porosity, high tortuosity and good resistance to the passage of air, said layer (36) having, owing to its high tortuosity, excellent sonic absorption properties at medium and high frequencies. The invention is useful for soundproofing motor car passenger compartments.
IPC 8 full level
G10K 11/168 (2006.01); B29D 99/00 (2010.01)
CPC (source: EP US)
G10K 11/168 (2013.01 - EP US); Y10T 156/1031 (2015.01 - EP US)
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 LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
FR 2888386 A1 20070112; FR 2888386 B1 20070907; EP 1899949 A1 20080319; EP 1899949 B1 20181024; ES 2707153 T3 20190402; JP 2009500230 A 20090108; JP 2012196966 A 20121018; JP 5735451 B2 20150617; PL 1899949 T3 20190329; US 2008196971 A1 20080821; US 7789197 B2 20100907; WO 2007006950 A1 20070118
DOCDB simple family (application)
FR 0507271 A 20050707; EP 06778823 A 20060707; ES 06778823 T 20060707; FR 2006001650 W 20060707; JP 2008519969 A 20060707; JP 2012097090 A 20120420; PL 06778823 T 20060707; US 99484806 A 20060707