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US Patent 7892472 Method of making water-resistant gypsum-based article

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Patent Citations Received
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US Patent 11945751 Calcium aluminate cement and calcium sulfoaluminate cement catalysts in gypsum panels and use thereof
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US Patent 11884040 Light weight gypsum board
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Patent abstract

A moisture resistant gypsum-based product, e.g., a gypsum board, is made by adding a small amount of a siloxane to the aqueous slurry used to make the gypsum-based product along with a small amount of a dead burned magnesium oxide catalyst to enhance the curing of the siloxane. In the preferred embodiment, the siloxane is formed into an aqueous emulsion in situ with no chemical emulsifier.

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Patent Citations Received
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US Patent 11780113 Lightweight, reduced density fire rated gypsum panels
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Patent Inventor Names
Kathryn Capacasa0
Srinivas Veeramasuneni0
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US Patent 07892472 Method of making water-resistant gypsum-based article US Patent 7892472 Method of making water-resistant gypsum-based article

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Patent Number
078924720
Patent Number
78924720
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=078924720
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Infobox
Is a
Patent
Patent
0
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
078924720
Date of Patent
February 22, 2011
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Patent Application Number
109171770
Date Filed
August 12, 2004
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=078924720
Patent Primary Examiner
Christina Johnson
Christina Johnson
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07892472
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 US Patent 07892472 Method of making water-resistant gypsum-based article

Infobox
Is a
Patent
Patent
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07892472
Date of patent
February 22, 2011
Patent application number
10917177
Date Filed
August 12, 2004
Patent primary examiner
Christina Johnson
Christina Johnson

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