Title:
FIBER AGGREGATE FOR SOUND INSULATION, SOUND ABSORBING/INSULATING MATERIAL, AND SOUND ABSORBING/INSULATING MATERIAL FOR VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/004408
Kind Code:
A1
Abstract:
[Problem] To provide a fiber aggregate for sound insulation that is able to effectively insulate sound by a simple structure, a sound absorbing/insulating material and a sound absorbing/insulating material for a vehicle that comprise this fiber aggregate for sound insulation. [Solution] This fiber aggregate for sound insulation has a mean fiber diameter of 450-8500 nm and a bulk density of 0.09-0.33 g/cm3. It is particularly desirable that the fiber aggregate for sound insulation have a mean fiber diameter of 450-1650 nm and a bulk density of 0.09-0.22 g/cm3. The fiber aggregate for sound insulation is lightweight and can effectively provide sound insulation performance by satisfying these numeric ranges.
Inventors:
SOTA HIROYOSHI (JP)
IKEAGAYA MORIHIKO (JP)
URABE KENICHI (JP)
ECHIZENYA TAKATSUGU (JP)
HIROGAKI TOSHIKI (JP)
WU WEI (JP)
ISHII YOSHIAKI (JP)
IKEAGAYA MORIHIKO (JP)
URABE KENICHI (JP)
ECHIZENYA TAKATSUGU (JP)
HIROGAKI TOSHIKI (JP)
WU WEI (JP)
ISHII YOSHIAKI (JP)
Application Number:
PCT/JP2018/024744
Publication Date:
January 03, 2019
Filing Date:
June 28, 2018
Export Citation:
Assignee:
M TECHX INC (JP)
International Classes:
G10K11/162; B32B5/26; B60R13/08; G10K11/168
Foreign References:
| JPH1120570A | 1999-01-26 | |||
| JP2014214398A | 2014-11-17 | |||
| JP2014037647A | 2014-02-27 | |||
| JP2015197601A | 2015-11-09 | |||
| JP2017181925A | 2017-10-05 | |||
| JP2015065171A | 2015-04-09 | |||
| JPS6047786B2 | 1985-10-23 |
Other References:
See also references of EP 3675118A4
Attorney, Agent or Firm:
OPUS IP LAW FIRM (JP)
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