Title:
SOUND ABSORBING STRUCTURE
Document Type and Number:
Japanese Patent JP2020106697
Kind Code:
A
Abstract:
To provide a sound absorbing structure (sound absorbing material) which can stably withstand a high temperature environment up to about 1,000°C.SOLUTION: A base material 1 is made into a matte silica fiber by needle punching, and a surface material 2 is made into a sound absorbing structure which is a composite of spunbonded non-woven silica cloth with flame retardancy. Further both of these are thermocompression bonded with a cobweb-shaped hot melt material. And an air layer A is formed behind this.SELECTED DRAWING: Figure 1
Inventors:
IIDA KAZUYOSHI
WATANABE TOSHIYUKI
SAKATA KOJI
WATANABE TOSHIYUKI
SAKATA KOJI
Application Number:
JP2018246212A
Publication Date:
July 09, 2020
Filing Date:
December 27, 2018
Export Citation:
Assignee:
BRIDGESTONE KBG CO LTD
International Classes:
G10K11/168; B32B5/26; B32B9/00; B32B9/04; E04B1/86; G10K11/16
Domestic Patent References:
| JP2016071376A | 2016-05-09 | |||
| JP2008076871A | 2008-04-03 | |||
| JP2010079164A | 2010-04-08 | |||
| JP2003266572A | 2003-09-24 | |||
| JP3051333U | 1998-08-21 | |||
| JP2010122606A | 2010-06-03 | |||
| JP2010281131A | 2010-12-16 | |||
| JP2005105456A | 2005-04-21 | |||
| JP2005195989A | 2005-07-21 | |||
| JP2008203542A | 2008-09-04 |
Foreign References:
| CN108705830A | 2018-10-26 | |||
| CN204058869U | 2014-12-31 |
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda
Kato Kazunori
Hiroshi Fukuda
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