EP 0679765 B1 19980527 - Sound-proofing element and method for the production of a sound-proofing element
Title (en)
Sound-proofing element and method for the production of a sound-proofing element
Title (de)
Schallschutzelement und Verfahren zum Herstellen eines Schallschutzelementes
Title (fr)
Elément d'écran insonorisant et procédé de fabrication d'un élément d'écran insonorisant
Publication
Application
Priority
DE 4411003 A 19940330
Abstract (en)
[origin: EP0679765A1] The sound-absorption layer (3) which is placed on one of the sides of the sound-proofing layer (2) has a high proportion of elastomer, rubber and/or plastics granular recycling material. The sound- absorption layer (3) is connected integral with the sound-proofing layer (2) and has a lesser density than same. The sound-proofing layer (2) can be a heterogeneous multi-phase solid body with anisotropic mechanical properties made from recycled plastics granules, inorganic additives and a hydraulic bonding agent. The sound- absorption layer preferably has on its outer side facing the sound source integral moulded longitudinal or transversely aligned ribs (5) with trapezoidal or undulating cross-section. The bonding and setting process can be carried out at high temperature using steam for faster manufacture. <IMAGE>
IPC 1-7
IPC 8 full level
E01F 8/00 (2006.01)
CPC (source: EP)
E01F 8/0029 (2013.01)
Designated contracting state (EPC)
AT CH DE FR IT LI
DOCDB simple family (publication)
EP 0679765 A1 19951102; EP 0679765 B1 19980527; AT E166682 T1 19980615; DE 4411003 A1 19951005; DE 4411003 C2 19960125; DE 59502306 D1 19980702
DOCDB simple family (application)
EP 95104051 A 19950320; AT 95104051 T 19950320; DE 4411003 A 19940330; DE 59502306 T 19950320