Invention Grant
- Patent Title: Acoustic ceiling board with improved aesthetics
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Application No.: US16552029Application Date: 2019-08-27
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Publication No.: US11598093B2Publication Date: 2023-03-07
- Inventor: Eric D. Kragness , Chris Wells , Oliver Ebert , Alfred Winkler
- Applicant: ARMSTRONG WORLD INDUSTRIES, INC.
- Applicant Address: US PA Lancaster
- Assignee: ARMSTRONG WORLD INDUSTRIES, INC.
- Current Assignee: ARMSTRONG WORLD INDUSTRIES, INC.
- Current Assignee Address: US PA Lancaster
- Agent Craig M. Sterner
- Main IPC: E04B9/00
- IPC: E04B9/00 ; E04B1/84 ; B32B37/12 ; B32B37/24 ; C03C25/47 ; E04B1/86 ; E04B9/04

Abstract:
Described herein are acoustical panels, comprising: a substrate; a non-woven veil having an airflow resistance of greater than 45 mks rayls, comprising: from about 20 wt. % to about 60 wt. % glass fibers; from about 40 wt. % to about 80 wt. % of a filler; and from about 110 dry g/m2 to about 135 dry g/m2 of a coating. Methods of making and using the panels are also described.
Public/Granted literature
- US20190383009A1 ACOUSTIC CEILING BOARD WITH IMPROVED AESTHETICS Public/Granted day:2019-12-19
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