US 12,291,007 B2
Composition for sound insulating sheet member, sound insulating sheet member, and sound insulating structure body
Haruki Koshitouge, Tokyo (JP); and Daichi Okuno, Tokyo (JP)
Assigned to Mitsubishi Chemical Corporation, Tokyo (JP)
Filed by Mitsubishi Chemical Corporation, Tokyo (JP)
Filed on Oct. 16, 2023, as Appl. No. 18/380,508.
Application 18/380,508 is a continuation of application No. 17/078,272, filed on Oct. 23, 2020, granted, now 11,931,990.
Application 17/078,272 is a continuation of application No. PCT/JP2019/017777, filed on Apr. 25, 2019.
Claims priority of application No. 2018-087370 (JP), filed on Apr. 27, 2018; and application No. 2018-087374 (JP), filed on Apr. 27, 2018.
Prior Publication US 2024/0042742 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 25/08 (2006.01); B32B 3/30 (2006.01); E04B 1/84 (2006.01); E04B 1/86 (2006.01)
CPC B32B 25/08 (2013.01) [B32B 3/30 (2013.01); E04B 1/8409 (2013.01); E04B 1/86 (2013.01); B32B 2250/02 (2013.01); B32B 2307/102 (2013.01); B32B 2307/3065 (2013.01); B32B 2319/00 (2013.01); E04B 2001/8419 (2013.01); E04B 2001/8428 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A structural body, comprising:
a plurality of convex-shaped rubber-elastic resonant portions; and
a sheet-like support that supports the resonant portions,
wherein a specific gravity of the resonant portions is in a range of from 1.0 to 3.0 g/cm3,
wherein a height of the resonant portions is in a range of from 50 μm to 100 mm, and
wherein an areal density of the support is 1.0 kg/m2 or less.