Title:
SOUND ABSORBING MATERIAL
Document Type and Number:
WIPO Patent Application WO/2005/019783
Kind Code:
A1
Abstract:
A sound absorbing material, characterized in that nonwoven fabrics having a weight of 150 to 800 g/m2 and a bulk density of 0.01 to 0.2 g/cm3 and skin materials having a permeability measured in accordance with JIS L-1096 of 50 cc/cm2/sec or less are laminated on each other.
Inventors:
TAKAYASU AKIRA (JP)
YAMAMOTO TSUTOMU (JP)
KOSUGE KAZUHIKO (JP)
MATSUMURA MINEAKI (JP)
YAMAMOTO TSUTOMU (JP)
KOSUGE KAZUHIKO (JP)
MATSUMURA MINEAKI (JP)
Application Number:
PCT/JP2004/012104
Publication Date:
March 03, 2005
Filing Date:
August 24, 2004
Export Citation:
Assignee:
TAKAYASU CO LTD (JP)
DU PONT TORAY CO LTD (JP)
ICHIMURA SANGYO CO LTD (JP)
TAKAYASU AKIRA (JP)
YAMAMOTO TSUTOMU (JP)
KOSUGE KAZUHIKO (JP)
MATSUMURA MINEAKI (JP)
DU PONT TORAY CO LTD (JP)
ICHIMURA SANGYO CO LTD (JP)
TAKAYASU AKIRA (JP)
YAMAMOTO TSUTOMU (JP)
KOSUGE KAZUHIKO (JP)
MATSUMURA MINEAKI (JP)
International Classes:
A01D34/68; B32B5/06; B32B27/02; B60R13/08; D04H1/4374; D04H1/498; G10K11/16; G10K11/162; H01H73/02; (IPC1-7): G01K11/16
Foreign References:
| JP2002079598A | 2002-03-19 | |||
| JPH09324357A | 1997-12-16 | |||
| JP2002182655A | 2002-06-26 | |||
| JPS5263404A | 1977-05-25 | |||
| JPH10121361A | 1998-05-12 | |||
| JP2002200681A | 2002-07-16 |
Attorney, Agent or Firm:
Iwatani, Ryo (1-31 Dojima 2-chome, Kita-k, Osaka-shi Osaka, JP)
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