Gypsum wallboard

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United States of America Patent

PATENT NO 8592541
APP PUB NO 20110130505A1
SERIAL NO

13018951

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Importance

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Abstract

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Gypsum wallboard can be made lighter and less dense, without sacrificing strength, by adding to the gypsum slurry used in making the board a styrene butadiene polymer latex substantially stable against divalent ions in which the styrene butadiene polymer includes at least 0.25 wt. % of an ionic monomer.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
OMNOVA SOLUTIONS INCFAIRLAWN OH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Westerman, Ira John Wadsworth, US 9 122

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