Title:
吸音ボード、パッケージトレイ、ラゲッジボード及び遮音構造
Document Type and Number:
Japanese Patent JP7383334
Kind Code:
B2
Abstract:
To provide a sound absorption board capable of improving rigidity while maintaining sound absorbency, and a package tray, a luggage board, and a sound insulation structure including the sound absorption board.SOLUTION: A sound absorption board 10 is formed by uniting together polyurethane foam 11 having a continuous air bubble structure and a skin material 20. The skin material 20 is arranged on the top and reverse sides of the polyurethane foam 11, and has air permeability, and the skin material 20 has an impregnated layer 22 formed which is impregnated with a raw material of the polyurethane foam, the raw material having been cured. The skin material 20 including the impregnated layer 22 has an air permeability of 3-90 ml/cm2/s based upon JIS K6400-7 B: 2012.SELECTED DRAWING: Figure 1
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Inventors:
Kazuyasu Nakane
Katsuhiro Tange
Hiroki Sugimoto
Katsuhiro Tange
Hiroki Sugimoto
Application Number:
JP2019083397A
Publication Date:
November 20, 2023
Filing Date:
April 24, 2019
Export Citation:
Assignee:
Inoac Corporation
International Classes:
G10K11/168; B32B5/18; B32B5/24; B32B27/40; B60R5/04; B60R13/08; E04B1/86; G10K11/16
Domestic Patent References:
| JP2018171820A | ||||
| JP2009243113A | ||||
| JP2015138055A | ||||
| JP2006015857A | ||||
| JP2014221611A | ||||
| JP2001107493A | ||||
| JP2008024036A | ||||
| JP2009226675A | ||||
| JP2019035821A |
Foreign References:
| WO2014141418A1 |
Attorney, Agent or Firm:
Hiroshi Matsuura
Kanako Axis
Kanako Axis