SOUND-ABSORBING MATERIAL, SOUND-ABSORBING PANEL IN WHICH SAME IS USED, AND METHOD FOR MANUFACTURING SOUND-ABSORBING MATERIAL

Title:

SOUND-ABSORBING MATERIAL, SOUND-ABSORBING PANEL IN WHICH SAME IS USED, AND METHOD FOR MANUFACTURING SOUND-ABSORBING MATERIAL

Document Type and Number:

WIPO Patent Application WO/2021/251279

Kind Code:

A1

Abstract:

Provided is a sound-absorbing material in which the sound absorption rate does not decrease even in highly moist environments. The sound-absorbing material 1 comprises padding 2 that includes fibers formed from at least a polyester-based resin, and a skin 3 enclosing the padding 2, the skin 3 being formed from a non-woven fabric including fibers formed from a polypropylene-based resin.

More Like This:

JP2021518783	Layered spunlace non-woven mask pack sheet and its manufacturing method
WO/2004/050216	MULTILAYER NONWOVENS INCORPORATING DIFFERENTIAL CROSS-SECTIONS
JP2016052721	COMPOSITE FABRIC THREE DIMENSIONAL STRUCTURE

Inventors:

OBATA NORITOSHI (JP)
SATO TOMOYUKI (JP)
ICHIKAWA TARO (JP)
NAKASHIMA TOMONORI (JP)
MURASE MAO (JP)
YOSHIZAWA HIDENORI (JP)
TAKEUCHI FUMITO (JP)

Application Number:

PCT/JP2021/021294

Publication Date:

December 16, 2021

Filing Date:

June 04, 2021

Export Citation:

Click for automatic bibliography generation Help

Assignee:

BSTECHNO INC (JP)
MITSUI CHEMICALS INC (JP)

International Classes:

B32B5/26; D04H3/007; G10K11/16; G10K11/168

Domestic Patent References:

WO2014042253A1

2014-03-20

Foreign References:

JP2003214134A	2003-07-30
JP2010043507A	2010-02-25

Attorney, Agent or Firm:

SATO & ASSOCIATES (JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: IMAGE DECODING DEVICE, IMAGE DECODING METHOD, AND PROGRAM

Next Patent: INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, INFORMATION PROCESSING PROGRAM, AND IN...