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US 7,261,772 B1Granted
Gypsum composition
AssigneeLyondell Chemical Technology, L.P.
InventorsSteven A. Schwartz, Sallie J. Lee, Frank J. Liotta, Jr., Robert M. Arrell
Life of this patent
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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.
Claims12
A gypsum composition comprising water, stucco, clay, a polyoxyalkylene, an amine compound, and a comb-branched copolymer.
Dependencies are inferred from the claim text.