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:
Dec. 03, 2013
Filed:
Aug. 27, 2010
Chris C. Lee, Mt. Prospect, IL (US);
Alfred C. LI, Naperville, IL (US);
Richard J. Haszel, Mundelein, IL (US);
David R. Blackburn, Barrington, IL (US);
James R. Wittbold, Des Plaines, IL (US);
Brent Groza, Grayslake, IL (US);
Chris C. Lee, Mt. Prospect, IL (US);
Alfred C. Li, Naperville, IL (US);
Richard J. Haszel, Mundelein, IL (US);
David R. Blackburn, Barrington, IL (US);
James R. Wittbold, Des Plaines, IL (US);
Brent Groza, Grayslake, IL (US);
United States Gypsum Company, Chicago, IL (US);
Abstract
A panel is provided that includes stucco, water and a dispersant component having dispersing properties and comprising a comb-branched polymer with polyether side chains, naphthalene sulfonate-formaldehyde condensate or melamine sulfonate-formaldehyde condensate. A polycondensation component is also included in the slurry that includes three repeating units. A method of making the gypsum panel includes combining stucco, water and a first dosage of a first dispersant to form a slurry, the first. A second dosage of a second dispersant is added to the slurry. Properties of the gypsum slurry are tested and it is formed into a product. The product sets and properties of the product are identified. The first dosage or the second dosage is changed based on the properties of the slurry or product.