Title:
多層状防音・断熱部品
Document Type and Number:
Japanese Patent JP2005536663
Kind Code:
A
Abstract:
The invention relates to a multilayered acoustic and thermal insulation part (1), in particular for motor vehicles, with at least one three-dimensionally structured foamed-plastic layer (2) and at least one nonwoven-fabric layer (3) lying adjacent thereto, whereby the foamed-plastic layer has a plurality of protrusions (4) and/or depressions (5). In order to be able to produce such an insulation part cost-effectively with a low weight, provision is made such that the nonwoven-fabric layer (3) is needled onto the foamed-plastic layer (2), and in such a way that the nonwoven-fabric layer lies contour-parallel next to the foamed-plastic layer and the protrusions (4) and/or depressions (5) of the foamed-plastic layer (2) are also impressed in the surface of the nonwoven-fabric layer (3) facing away therefrom. The jointing of the nonwoven-fabric layer and the foamed-plastic layer of the insulation part is thus produced without adhesive, so that costs on adhesive are saved and the weight of the insulation part is correspondingly reduced.
Inventors:
Gnedik, Christian
Application Number:
JP2004533244A
Publication Date:
December 02, 2005
Filing Date:
June 27, 2003
Export Citation:
Assignee:
Car Caustics Tech Center Gezel Shaft Mitt Beschlenktel Haftung
International Classes:
B32B3/26; B32B5/06; B32B5/24; D04H1/46; B60R13/08; F16L59/02; (IPC1-7): D04H1/46; B32B5/24; B60R13/08; F16L59/02
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Masaya Nishiyama
Takashi Ishida
Tetsuji Koga
Nagasaka Tomoyasu
Masaya Nishiyama