公开(公告)号：US20230175258A1

公开(公告)日：2023-06-08

申请号：US18103433

申请日：2023-01-30

Applicant: ARMSTRONG WORLD INDUSTRIES, INC.

Inventor： Eric D. KRAGNESS ,  Chris WELLS ,  Oliver EBERT ,  Alfred WINKLER

IPC: E04B9/00 ,  E04B1/84 ,  B32B37/12 ,  B32B37/24 ,  C03C25/47 ,  E04B1/86 ,  E04B9/04

CPC classification number: E04B9/001 ,  E04B1/84 ,  B32B37/12 ,  B32B37/24 ,  C03C25/47 ,  E04B1/86 ,  E04B9/045 ,  B32B2037/243 ,  Y10T428/25

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.