The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 2026
Filed:
Mar. 29, 2022
Applicant:
Knauf Gips KG, Iphofen, DE;
Inventors:
Christian Balling, Waldbüttelbrunn, DE;
Michael Schneider, Rödelsee, DE;
Assignee:
KNAUF GIPS KG, Iphofen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/86 (2006.01); B32B 5/02 (2006.01); B32B 5/18 (2006.01); B32B 5/24 (2006.01); B32B 13/02 (2006.01); B32B 13/14 (2006.01); C04B 28/14 (2006.01);
U.S. Cl.
CPC ...
E04B 1/86 (2013.01); B32B 5/022 (2013.01); B32B 5/18 (2013.01); B32B 5/245 (2013.01); B32B 13/02 (2013.01); B32B 13/14 (2013.01); C04B 28/14 (2013.01); B32B 2250/03 (2013.01); B32B 2266/049 (2016.11); B32B 2266/104 (2016.11); B32B 2307/102 (2013.01); B32B 2307/718 (2013.01); B32B 2307/7376 (2023.05); B32B 2607/00 (2013.01);
Abstract
A gypsum-based acoustic panel wherein in the panel includes a core layer of foamed gypsum, face side and back side layers of non-woven encasing the core layer, and the panel has an alpha-value of between 0.4 and 0.7 and specific flow resistances of <15000 Pa s/m, methods for their preparation and their uses.