Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Michael P. Shake0
Qingxia Liu0
Brian Randall0
David R. Blackburn0
Dennis M. Lettkeman0
John W. Wilson0
Date of Patent
October 27, 2009
Patent Application Number
11450068
Date Filed
June 9, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
An improved gypsum slurry that includes water, calcium sulfate hemihydrate, a polycarboxylate dispersant and a modifier. The modifier is chemically configured to improve the efficacy of the polycarboxylate dispersant. Preferred modifiers include cement, lime, slaked lime, soda ash, carbonates, silicates and phosphates.
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