- 专利标题: High noise reduction coefficient, low density acoustical tiles
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申请号: US15674707申请日: 2017-08-11
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公开(公告)号: US10696594B2公开(公告)日: 2020-06-30
- 发明人: Wei Xu , Thomas M. Mayers , Scott C. Bakken
- 申请人: USG INTERIORS, LLC
- 申请人地址: US IL Chicago
- 专利权人: USG INTERIORS, LLC
- 当前专利权人: USG INTERIORS, LLC
- 当前专利权人地址: US IL Chicago
- 代理机构: Vorys, Sater, Seymour and Pease LLP
- 代理商 Pradip Sahu; Brian Wishnow
- 主分类号: C04B28/14
- IPC分类号: C04B28/14 ; C04B41/00 ; C04B26/06 ; C04B41/45 ; C04B41/61 ; B28B11/24 ; C04B14/18 ; C04B14/46 ; C04B41/50 ; C04B41/68 ; E04B9/00 ; C04B111/12 ; E04B1/84 ; E04B9/04 ; B32B3/26 ; C04B111/00 ; C04B111/52
摘要:
Acoustical tile including a dried base mat of: about 70 to about 90 wt % mineral wool; about 5 to about 15 wt % perlite; 0 to about 10 wt % starch; about 3 to about 10 wt % latex; 0 to about 5 wt % gypsum; and less than 5 wt % water. The dried base mat without including glass fibers and without a laminate layer or coating and without perforations has a NRC of about 0.70 or greater, a density of about 10 pcf to about 12 pcf, and a thickness of about ½ to about 1 inch. The acoustical tile can further include a back coating at a surface weight of about 5 grams per square foot (gsf) to about 40 gsf to the dried base mat, wherein the acoustical tile has the CAC rating of about 30 to about 35.