COMPOSITION FOR SOUND-BLOCKING SHEET MEMBER, SOUND-BLOCKING SHEET MEMBER, AND SOUND-BLOCKING STRUCTURE BODY

Title:

COMPOSITION FOR SOUND-BLOCKING SHEET MEMBER, SOUND-BLOCKING SHEET MEMBER, AND SOUND-BLOCKING STRUCTURE BODY

Document Type and Number:

WIPO Patent Application WO/2019/208727

Kind Code:

A1

Abstract:

Provided are: a composition for a sound-blocking sheet member having excellent sound-blocking performance; the sound-blocking sheet member; and a sound-blocking structure body. In the sound-blocking structure body, which has a plurality of protuberant, rubbery resonant parts, and a sheet-form support body that supports the resonant parts, the resonant parts have a storage elasticity G' of 100 MPa or less at 25°C and 10 kHz as obtained from the synthetic curve of dynamic viscoelasticity according to ISO6721-4, and the surface density of the support body is 1.0 kg/m2 or less.

Inventors:

KOSHITOUGE HARUKI (JP)
OKUNO DAICHI (JP)

Application Number:

PCT/JP2019/017777

Publication Date:

October 31, 2019

Filing Date:

April 25, 2019

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)

International Classes:

G10K11/172; C08F2/48; E04B1/82; G10K11/16; G10K11/168

Domestic Patent References:

WO2017135409A1	2017-08-10
WO2016093339A1	2016-06-16
WO2017135409A1	2017-08-10

Foreign References:

JP2000265593A	2000-09-26
JPH10312191A	1998-11-24
JP2013231316A	2013-11-14
JP2017227109A	2017-12-28
JP2000265593A	2000-09-26

Other References: