Glass fiber enhanced mineral wool based acoustical tile
US8734613B1 · kind B1 · utility
10Cited by
21References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2013 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249986
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A wet laid basemat for an acoustical ceiling tile comprising on a dry weight basis, 50% or more mineral wool fiber, including shot, less than 9% binder, and between 5 and 20% chopped strand glass fiber, and, optionally, minor amounts of other constituents, whereby the chopped strand glass fibers serve to promote and/or maintain voids in the mat such that the dry basemat has a density of between about 7½ to about 10½ lbs. per cubic foot and an NRC substantially greater than 0.55.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.