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:
Sep. 17, 2024
Filed:
Jun. 17, 2016
United States Gypsum Company, Chicago, IL (US);
Alfred C. Li, Naperville, IL (US);
Weixin D. Song, Vernon Hills, IL (US);
Yijun Sang, Oak Park, IL (US);
Gregg G. Diefenbacher, Mars, PA (US);
Annamaria Vilinska, Chicago, IL (US);
Brian J. Christ, Burlington, IA (US);
Fredrick T. Jones, Grayslake, IL (US);
Bradley W. Todd, Hainesville, IL (US);
UNITED STATES GYPSUM COMPANY, Chicago, IL (US);
Abstract
Disclosed is a composite gypsum board comprising a board core and a concentrated layer of substantial thickness (e.g., at least about 0.02 inches). The concentrated layer includes a higher weight percentage of an enhancing additive than the hoard core. The board core has a thickness greater than the thickness of the concentrated layer and forms the bulk of the board volume. The concentrated layer has a higher density (e.g., at least about 1.1 times greater) than the density of the board core. Also disclosed is a method of preparing a composite gypsum board.