Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Paul Reed0
Qiang Yu0
Qingxia Liu0
Xuming Wang0
Date of Patent
October 19, 2010
Patent Application Number
12478114
Date Filed
June 4, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
Polymerization of siloxane is improved using a gypsum-based slurry that includes stucco, Class C fly ash, magnesium oxide and an emulsion of siloxane and water. This slurry is used in a method of making water-resistant gypsum articles that includes making an emulsion of siloxane and water, then combining the slurry with a dry mixture of stucco, magnesium oxide and Class C fly ash. The slurry is then shaped as desired and the stucco is allowed to set and the siloxane polymerizes.
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