Acoustic panels and methods for preparing them
US11426758B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2019 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Feb 11, 2040 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/848
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The disclosure relates to acoustic panels and methods for preparing them. The disclosure relates more particularly to panels having a nonwoven facing and to methods for making such panels. A method for preparing an acoustic panel comprises providing a base structure. The base structure has one or more edges, an outward major surface having total area, and an inward major surface opposing the outward major surface. The base structure has a noise reduction coefficient (NRC) of at least about 0.3. The method includes disposing directly against the outward major surface of the base structure a sprayable mixture comprising a plurality of fibers, one or more binders, and a dispersive medium. The method includes drying the disposed mixture to provide a facing layer disposed on the outward major surface of the base structure, the facing layer having an exterior major surface opposing the outward major surface of the base structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.