公开(公告)号：US20230112198A1

公开(公告)日：2023-04-13

申请号：US17958992

申请日：2022-10-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Taewook Yoo ,  Kim-Tong Gan ,  Anja C. Rohmann ,  Masato Kondo ,  Hirokazu Mizutani ,  Hyunjun Shin ,  Seungkyu Lee ,  Jonathan H. Alexander

IPC: G10K11/162 ,  G10K11/172

Abstract: Described herein are noise-resistant assemblies pursuant to various commercial and industrial applications. The noise-resistant assemblies can include duct assemblies, pool assemblies, motor assemblies, carpet flooring assemblies, and roofing assemblies. These assemblies incorporate an acoustic article containing a porous layer and a heterogeneous filler having a median particle size of from 1 micrometer to 1000 micrometers and a specific surface area of from 0.1 m2/g to 10,000 m2/g received in the porous layer.