Acoustical panel having a calendered, flame-retardant paper backing and method of making the same
US6443257B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Aug 25, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2001/8461
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a multi-layered, substantially rigid and self-supporting acoustical panel. Preferably, the panel includes an acoustically absorbent semi-rigid core having a substantially continuous interior porosity. The panel also includes an acoustically permeable face layer applied to a first face of the core, wherein the face layer is adapted to allow acoustical energy to pass through the face layer and into the acoustically absorbent core. The panel also includes a flame-retardant, calendered paper backing adapted to be applied to the core. According to the present invention, the panel may also include a flame-retardant adhesive adapted to attach the calendered, flame-retardant paper backing to the core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.