Patent · US Active

Water stain and sag resistant acoustic building panel

US10435888B2 · kind B2 · utility

2Cited by

23References

19Claims

0Family size

Assignee

AWI Licensing LLC · US

Inventors

Michelle X. Wang · Lititz, US
Joanne Lefever · Lancaster, US
Lida Lu · Dorpsstraat, US

Key dates

Filing date	Jul 11, 2017
Grant date	Oct 8, 2019
Priority date	—
Expiry date	Jul 11, 2037

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE04B2001/8461
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Described herein is an stain and sag resistant acoustic ceiling panel comprising a porous body formed from mineral and cellulosic fibers having an upper surface opposite a lower surface and at least one side surface extending between the upper surface and the lower surface; a first layer applied to the upper surface, the first layer comprising a hygroscopic component and a hydrophobic component; and a second layer applied to the lower surface, the second layer comprising a hydrophobic component.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.