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:
Aug. 28, 2007
Filed:
Oct. 17, 2006
Steven A. Schwartz, Downingtown, PA (US);
Sallie J. Lee, Havertown, PA (US);
Frank J. Liotta, Jr., Downingtown, PA (US);
Robert M. Arrell, Quarryville, PA (US);
Steven A. Schwartz, Downingtown, PA (US);
Sallie J. Lee, Havertown, PA (US);
Frank J. Liotta, Jr., Downingtown, PA (US);
Robert M. Arrell, Quarryville, PA (US);
Lyondell Chemical Technology, L.P., Greenville, DE (US);
Abstract
A gypsum composition comprising water, stucco, clay, an amine compound, a polyoxyalkylene, and a comb-branched copolymer is disclosed. The gypsum composition has improved fluidity. A method for preparing the gypsum composition is also disclosed. The method comprises mixing the components to form a slurry, casting the slurry into a product, and drying the product.