SOUND ABSORBING MATERIAL, SOUND ABSORBING PROPERTY IMPROVING MEMBER, AND VEHICLE MEMBER

Title:

SOUND ABSORBING MATERIAL, SOUND ABSORBING PROPERTY IMPROVING MEMBER, AND VEHICLE MEMBER

Document Type and Number:

WIPO Patent Application WO/2021/182466

Kind Code:

A1

Abstract:

Provided is a sound absorbing member comprising, in this order, a resin film, a first substrate layer having a communication hole, and a second substrate layer having a communication hole. The density of the first substrate layer is higher than the density of the second substrate layer.

Inventors:

TAKAYASU SATOSHI (JP)
YOKOKURA AI (JP)
KOTAKE TOMOHIKO (JP)

Application Number:

PCT/JP2021/009275

Publication Date:

September 16, 2021

Filing Date:

March 09, 2021

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Assignee:

SHOWA DENKO MATERIALS CO LTD (JP)

International Classes:

B32B5/18; D04H1/4374; D04H1/593; G10K11/168

Foreign References:

JP2005227747A	2005-08-25
JP2003216158A	2003-07-30
JP2007086505A	2007-04-05

Attorney, Agent or Firm:

HASEGAWA Yoshiki et al. (JP)

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