Patent · US Active

Open-celled gypsum core, gypsum acoustic panel, and method for making same

US12304871B2 · kind B2 · utility

0Cited by

28References

19Claims

0Family size

Assignee

Knauf Gips KG · DE

Inventors

Yijun Sang · Oak Park, US
Suman Sinha Ray · Chicago, US
Mark Hemphill · Hawthorn Woods, US

Key dates

Filing date	Jan 7, 2022
Grant date	May 20, 2025
Priority date	—
Expiry date	Sep 26, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC04B2111/52
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

An open cell set gypsum core includes an interlocking matrix of gypsum having air voids distributed therein. The air voids define cells having cell walls formed by the interlocking matrix. The interlocking matrix further includes channels distributed therein. The channels interconnect the air voids and comprise openings in the cell walls.

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