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:
Jul. 29, 2025
Filed:
Sep. 25, 2023
Applicant:
United States Gypsum Company, Chicago, IL (US);
Inventors:
Yijun Sang, Oak Park, IL (US);
Brian J. Christ, Burlington, IA (US);
Assignee:
UNITED STATES GYPSUM COMPANY, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C04B 24/10 (2006.01); B32B 13/02 (2006.01); C04B 24/38 (2006.01); C04B 28/14 (2006.01); E04B 2/72 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C04B 24/10 (2013.01); B32B 13/02 (2013.01); C04B 24/38 (2013.01); C04B 28/14 (2013.01); B32B 2607/00 (2013.01); C04B 2111/0062 (2013.01); C04B 2201/10 (2013.01); C04B 2235/447 (2013.01); E04B 2/723 (2013.01);
Abstract
Disclosed are product (e.g., board), slurry, and methods relating to an uncooked starch that can be used to enhance strength in one or more gypsum layers in the board. The uncooked starch has a hot water viscosity of from about 20 BU to about 300 BU according to the HWVA method, and/or a mid-range peak viscosity of from about 120 Brabender Units to about 1000 Brabender Units.