EP 1986888 A1 20081105 - METHOD FOR PRODUCING A NOISE INSULATION PIECE
Title (en)
METHOD FOR PRODUCING A NOISE INSULATION PIECE
Title (de)
VERFAHREN ZUM HERSTELLEN EINES SCHALLISOLATIONSTEIL
Title (fr)
PROCÉDÉ DE FABRICATION D'UN ÉLÉMENT D'INSONORISATION
Publication
Application
Priority
- EP 2007001375 W 20070216
- DE 102006007784 A 20060220
Abstract (en)
[origin: DE102006007784A1] In a process to manufacture automotive floorpan sound insulation with or without a carpet (1), a base-mass floor covering layer (1) is placed on top of a layer of deep drawn thermoplastic granules (3). Following the deep drawing process, the combined (4) weight of floor covering and granules reaches a pre-determined mass value. Prior to the deep drawing process, the granules are heated to effect a bond with the base-mass layer. The granules and base-mass materials are both thermoplastics with about the same melting point. The granules have spring-like characteristics. The density of the granular layer varies locally in accordance with the sound muffling characteristics required. The granules and bass-mass are joined by sintering.
IPC 8 full level
B60R 13/08 (2006.01)
CPC (source: EP US)
B29C 44/146 (2013.01 - EP US); B29C 44/445 (2013.01 - EP US); B60R 13/083 (2013.01 - EP US); B29L 2031/3017 (2013.01 - EP US); Y10T 428/249953 (2015.04 - EP US); Y10T 428/31551 (2015.04 - EP US); Y10T 442/699 (2015.04 - EP US)
Citation (search report)
See references of WO 2007096100A1
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)
DE 102006007784 A1 20070823; EP 1986888 A1 20081105; JP 2009527378 A 20090730; US 2009088039 A1 20090402; WO 2007096100 A1 20070830
DOCDB simple family (application)
DE 102006007784 A 20060220; EP 07703506 A 20070216; EP 2007001375 W 20070216; JP 2008555678 A 20070216; US 28012807 A 20070216