Acoustical ceiling tile
US9896807B2 · kind B2 · utility
9Cited by
21References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2015 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Nov 6, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/91
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An acoustical tile including: 8 to 25 wt % mineral wool, 9 to 15 wt % starch binder, 9 to 15 wt % cellulosic fiber, wherein preferably the cellulosic fiber is newsprint, and 40 to 65 wt % perlite, wherein the weight ratio of the starch to the cellulosic fiber is 0.6 to 1.3:1; and a process for making the acoustical tile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.