Title:
SOUND ABSORPTION BODY
Document Type and Number:
WIPO Patent Application WO/2016/051527
Kind Code:
A1
Abstract:
This sound absorption body includes a non-woven fabric or a non-woven-fabric stacked body. The non-woven fabric or the non-woven-fabric stacked body comprises fibres having an average fibre diameter of less than 3,000 nm. The thickness of the non-woven fabric or the non-woven-fabric stacked body is less than 10 mm. The flow resistance per unit thickness of the non-woven fabric or the non-woven-fabric stacked body is greater than 4.0E+06 Ns/m4, and lower than 5.0E+08 Ns/m4. The bulk density of the non-woven fabric or the non-woven-fabric stacked body is greater than 70 kg/m3, and less than 750 kg/m3.
Inventors:
AKASAKA SHUICHI (JP)
MATSUMOTO HIDETOSHI (JP)
KATO TAKAHISA (JP)
MATSUMOTO HIDETOSHI (JP)
KATO TAKAHISA (JP)
Application Number:
PCT/JP2014/076159
Publication Date:
April 07, 2016
Filing Date:
September 30, 2014
Export Citation:
Assignee:
MICHELIN & CIE (FR)
MICHELIN RECH TECH (CH)
AKASAKA SHUICHI (JP)
MATSUMOTO HIDETOSHI (JP)
KATO TAKAHISA (JP)
MICHELIN RECH TECH (CH)
AKASAKA SHUICHI (JP)
MATSUMOTO HIDETOSHI (JP)
KATO TAKAHISA (JP)
International Classes:
G10K11/16; B29C48/05; G10K11/162
Foreign References:
| JP2013134427A | 2013-07-08 | |||
| JP2013181381A | 2013-09-12 |
Attorney, Agent or Firm:
TSUJII Koichi et al. (JP)
辻居 Koichi (JP)
辻居 Koichi (JP)
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