Gypsum wallboard, and method of making same

United States of America Patent

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Mar 9, 1999
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N/A
app pub date
Aug 21, 1998
filing date
Aug 21, 1998

priority date (Note)
Expired

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Abstract

A method of preparation of gypsum wallboard, as well as a core composition suitable for use therein, are disclosed. The core composition includes a slurry of calcium sulfate hemihydrate (stucco), water, and calcium aluminum lignosulfonate and/or aluminum lignosulfonate.

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Patent Owner(s)

Patent Owner	Address
NATIONAL GYPSUM PROPERTIES LLC	2001 REXFORD ROAD CHARLOTTE NC 28211

International Classification(s)

C04B:LIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREO....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Finkelstein, Ronald S	East Amherst, NY	10	288
Patel, Jashbhai M	Amherst, NY	5	192

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Gypsum wallboard, and method of making same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09137766

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PATENT NO	5879446
SERIAL NO	09137766
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09137766

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