The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 19, 2024
Filed:
Oct. 23, 2020
Applicant:
Mitsubishi Chemical Corporation, Tokyo, JP;
Inventors:
Haruki Koshitouge, Tokyo, JP;
Daichi Okuno, Tokyo, JP;
Assignee:
Mitsubishi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B 25/08 (2006.01); B32B 3/30 (2006.01); E04B 1/84 (2006.01); E04B 1/86 (2006.01);
U.S. Cl.
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);
Abstract
Provided is a composition for a sound insulating sheet member, a sound insulating sheet member, and a sound insulating structure body with excellent sound insulating performance. A sound insulating structure body including: a plurality of convex-shaped rubber-elastic resonant portions; and a sheet-like support that supports the resonant portions, wherein the resonant portions have a storage modulus G′ obtained from a composite curve of dynamic viscoelasticity according to ISO 6721-4 of 100 MPa or less at 25° C. and 10 kHz, and the areal density of the support is 1.0 kg/mor less.